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Generators:Cummins/Onan -
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Older (90´s) Onan 4kw has unburned fuel in exhaust |
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1
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Fri Mar 19 10 12:00 AM |
Yesterday
04:42 AM |
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Bk
We have a 4kw diesel Onan in our boat. It has a tendency to put diesel out the exhaust. We have heard that this can be due to injectors or an injector pump. We are looking for a reputable diesel me..... |
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1 Response....
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Today
12:00 AM |
#1 |
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hugh C. Brock
It is not the injection pump unless you are overloading the engine. If this is just happening on start up it is probably normal. Does the engine smoke under load when it is warm?
You also have to r..... |
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Caterpillar:3126 Series -
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Port Engine Bogging Down |
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5
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Thu Mar 18 10 11:56 PM |
Yesterday
11:15 AM |
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Harold
Hi, my 3126 420hp port engine is boggin down under load...As I give both engines throttle to get up on plane I feel both turbos kick in but once I am up on plane the port engine rpm drops from 2000 r..... |
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5 Responses....
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Yesterday
01:18 PM |
#1 |
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South Dade Paul
If you have one installed, then it could be a problem with the synchronizer. Is the problem engine the slave engine? Does the problem exist with the synchronizer turned off? |
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Yesterday
01:31 PM |
#2 |
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Harold
Hi, am not sure what u mean by slave engine, and how do u turn off the synconizer?? |
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Yesterday
04:09 PM |
#3 |
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South Dade Paul
Harold:
Does your boat have a synchronizer?
Paul |
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Yesterday
04:24 PM |
#4 |
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Harold
Hi Paul, no it does not have the optional synchronizer. What I will try is running from the starboard tank and see if I have the same problem, if not, then it has to be in the fuel pickup, possibly fr..... |
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Yesterday
11:56 PM |
#5 |
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hugh C. Brock
Have you changed the fuel filters yet or do both engines run off the same filter. |
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Westerbeke: General -
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Help with old 4 107 |
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0
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Thu Mar 18 10 11:34 PM |
Yesterday
11:34 PM |
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Don
I have a Westerbeke 4-107 and have some questions. One is where to get an oil filter for it? Seems like everything on this engine is original parts. Anyone have one and willing to talk shop? I am not ..... |
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NO Responses....
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Stern Gear:Propellers -
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Is This Prop Damage Repairable |
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14
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Thu Mar 18 10 9:18 PM |
Mar 12 2010
02:40 AM |
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Motoryacht Lover
The yard is telling me that I have a 1 inch crack on one of my blades down near the hub. The yard manager has sent the prop to the prop shop but the yard manager anticipates the prop shop not being a..... |
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14 Responses....
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Mar 12 2010
04:37 AM |
#1 |
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Ski in NC
Cracks anywhere near the hub are usually not repairable. The stresses are high there and welding does not restore original casting strength. Can you post photos? |
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Mar 12 2010
02:47 PM |
#2 |
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Motoryacht Lover
Thanks for reply, but the boat is in FL and I am in VA. So no photos unless I can get the yard manager to take some and email them to me. I will give that a try. Thanks again. |
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Mar 15 2010
06:35 AM |
#3 |
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Northern Lights
I have lost two Michigan blades in my life. Can´t explain the mechanics of it (chance?)but they both went straight up. You have a motoryacht, so I don´t imagine a thrown blade would penetrate the hull..... |
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Mar 16 2010
06:46 PM |
#4 |
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Motoryacht Lover
Here is a picture of the actual crack. From what I am understanding the prop shop is recommending removing about of inch of material on all the blades on this wheel. In other words, remove the materi..... |
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Mar 16 2010
07:07 PM |
#5 |
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Tomas Kempe
It looks to me that the crack is away from the hub more like parallel to the hub looking at the photo. The configuration (high pitch) indicates you have some thrust on with 700 hp plus power and it wi..... |
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Mar 16 2010
08:19 PM |
#6 |
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Motoryacht Lover
Thanks for responding. Are you saying CNC´d props are weaker than the "regular type". If the Michigans are going to cost me 10K for a pair I might as well go the Veem route. The DAR on my..... |
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Mar 16 2010
09:08 PM |
#7 |
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Tomas Kempe
No not at all, probably stronger by design. It is a performance prop and may be thinner than a work boat prop but that is a feature going with its intended purpose. The reason you have the Federal on ..... |
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Mar 16 2010
10:25 PM |
#8 |
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Motoryacht Lover
Maybe I should have provided these details earlier but the boat is a 1995 54 viking motoryacht with 820hp MANgrenades with ZF 350´s with 2.077:1 gears. I am hearing that the VEEMs offer a knot or 2 m..... |
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Mar 16 2010
11:02 PM |
#9 |
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Tomas Kempe
Viking is using Veem on some if not on all new convertibles with the new hull that I have seen. Give Viking a call and get the scope. Being made in Australia the pricing is probably reasonable with ex..... |
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Yesterday
03:56 PM |
#10 |
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Motoryacht Lover
It looks like I am going to buy a new set of Veems. The question is do I pay an additional $750(pair) for the "pitch strips"? The prop shops that sell them say they are holding up. One shop..... |
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Yesterday
05:37 PM |
#11 |
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AccuTech Marine Propeller, Inc.
Do not fool around with cracks in the root area of a blade! The crack is there for a reason...stress! Grinding the blades and reducing blade area to eliminate the crack on one propeller makes no sen..... |
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Yesterday
07:28 PM |
#12 |
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Tomas Kempe
Only a couple of thoughts. Perhaps it is a bad idea to change pitch on a Veem propeller if they are CNC machined and changing cup (with the strip) may be a better approach not messing with the prop ar..... |
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Yesterday
08:03 PM |
#13 |
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Motoryacht Lover
The reason for contemplating buying the expensive Veems is that supposedly they offer substantially better performance. The question is, is this typical marketing hype that I probably am a sucker for..... |
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Yesterday
09:18 PM |
#14 |
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Tomas Kempe
I think you have a good feel for the market - a qualified rip-off. The Aussie’s you can trust and I go with Veem. I know other investment bankers in the business and that is bad news - you pay. Go Ve..... |
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Volvo:40,41,42,43,44 Series -
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Another Dumb Question: Do you fresh water blowout if boat is in kept in the water? |
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0
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Thu Mar 18 10 8:21 PM |
Yesterday
08:21 PM |
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Freddie
I run a KAD 43 and have been on a Hydro-hoist for many years. Every trip I blowout the saltwater system with a fresh water hose using a connection inline between the salt water pump and the intake fro..... |
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NO Responses....
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General Diesel: General -
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How to use a non-contact laser photo tach |
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12
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Thu Mar 18 10 3:39 PM |
Mar 16 2010
06:14 PM |
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Fishtales
This is probably a very basic question, but I want to purchase a laser photo tach to confirm RPMs on my Cat 3126b´s. These photo tachs come with reflective tape that you apparently need to place in t..... |
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12 Responses....
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Mar 16 2010
07:20 PM |
#1 |
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David Marchand
Fishtape:
You put a strip on the crankshaft pulley in a radial direction.
David |
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Mar 16 2010
09:05 PM |
#2 |
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Ed
Good instructions came with my lser gun. note tape on crank wheel |
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Mar 16 2010
09:31 PM |
#3 |
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Fishtales
Thanks for the responses. I´ll follow this up with what may be stupid question... So to be clear, the RPM´s measured at the crankshaft pulley are the RPM´s you want to measure to determine actual RP..... |
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Mar 16 2010
10:33 PM |
#4 |
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Ski in NC
Yes, crank pulley is where you want to measure. That is the engine rpm, same as helm tachs show. You can put the tape anywhere on that pulley, all it must do is be visible to the phototach once per r..... |
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Mar 17 2010
04:29 AM |
#5 |
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Ed H
I was a little tight on my bulkhead, had to kneel down to get a good shot. Tried to put the tape on the outer rim of the crank. Came off at high revs (of course!!), secured with a little 5200, now I ..... |
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Mar 17 2010
06:32 PM |
#6 |
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Fishtales
Thanks Ed. I ordered one off of Amazon last night for $23 plus shipping. You got a better deal! |
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Mar 17 2010
07:39 PM |
#7 |
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Carlos
What for is the shut off valve placed only on one side off the extended coolant hose? Shouldn´t there be one at the outlet and one at the inlet of the engine to do its job?
Carlos |
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Yesterday
02:14 AM |
#8 |
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Ed
Carlos if you are talking about my picture of Yanmar 6ly I have no idea why valve is there it is held in open position by a zip tie.-My boat does have hydronic heat and hot water hook ups maybe this i..... |
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Yesterday
03:55 AM |
#9 |
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Psw
After owning a diesel boat for a short time I learned that having a quality photo tac and a Infrared Thermometer. Our engine room has great access so we check the rpm´s based on load a few times a sea..... |
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Yesterday
01:02 PM |
#10 |
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Carlos
Hi Ed,
The hook up is for to heat the water in your hot water tank.What i cant figure out is why there would be only one valve in the line; maybe to just shut off the hot water. For emergency purpo..... |
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Yesterday
01:33 PM |
#11 |
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Arne Armoa
Hmmmm... I´m not sure I even have one valve.... Can´t remember what they did. One more thing to check.
Anyway, I didn´t know those photo tachs could be so cheap. So yesterday I ordered one mysel..... |
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Yesterday
03:39 PM |
#12 |
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Clark Leighs
For anyone else sitting on the fence about having a phototach , get off the fence.
They are easy to use. Put a strip of reflective tape one the nose of the vibration dampener or crankshaft nos..... |
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Cummins:C Series -
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6 CTA Bolt Spec |
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12
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Thu Mar 18 10 1:36 PM |
Mar 17 2010
03:24 PM |
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Boatingdirect
I have several rusted bolts for the engine mount brackets (the bolts that attach the bracket to the block). The parts guide specifies M12 x 1.75 x 35 (Cummins part number 3900637) but, does not state..... |
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12 Responses....
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Mar 17 2010
03:38 PM |
#1 |
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Clark Leighs
Can´t help you specifically but they are most likely 8.8 and NOT SS.
The grade should be stamped into the head top. 8.8, 10.9, or 12.9 is typical metric marking.
An 8.8 is roughly equivalent t..... |
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Mar 17 2010
03:41 PM |
#2 |
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Rod
An interesting question. $14/bolt is ridiculous!!! We too had lots of those rusted bolts, and many threaded holes with no bolts, that were badly rusted. We tapped out the all the rusted threaded holes..... |
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Mar 17 2010
04:27 PM |
#3 |
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Boatingdirect
Thanks for the quick reply Clark. Extremely helpful! Steve |
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Mar 17 2010
04:32 PM |
#4 |
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Boatingdirect
Rod,
First, thanks for you quick reply - very helpful. Follow up question for you, do you also tap out the old holes that contain bolts to ensure a clean fit? I have tapped may stripped holes but, ..... |
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Mar 17 2010
05:03 PM |
#5 |
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Rod
With great respect I think Cummins do themselves a disservice charging ridiculous prices for small items, it makes us all wonder about their prices on big items. Allison Transmission oil filters were ..... |
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Mar 17 2010
06:26 PM |
#6 |
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Boatingdirect
Thanks again Rod. Steve |
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Mar 17 2010
07:16 PM |
#7 |
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Tony Athens
Rod,
Unless something has drastically changed, you are 100% wrong on this account.. Cummins bolts are typically CHEAP, sometimes DIRT cheap if you were to base it on quality..... When I get back fr..... |
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Mar 17 2010
09:04 PM |
#8 |
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Clark Leighs
just be carefull getting the tap to start properly. You don´t want to start a new thread.
To clean all the dirt and chips out afterward a bit of compressed air with the nozzle close to the back of..... |
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Yesterday
02:57 AM |
#9 |
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Tony Athens
Rod,
OK, I did some home work, just like you have done, but you need to do some more..
First off, I believe you have a good understanding of it all, so going aftermarket is a no-brainer when i..... |
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Yesterday
04:58 AM |
#10 |
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Boatingdirect
Thanks for the valuable input on this. I will have to figure out how to manage through my local distributor (Cummins South) to get the "right" price. I called to verify pricing and based o..... |
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Yesterday
09:08 AM |
#11 |
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Paul Foulston
Like parts people in most compainies they no longer have a guy or a girl who have the hands on experience to say, no you actually want part# abc which will do the job instead of XYZ. Life is not like ..... |
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Yesterday
01:36 PM |
#12 |
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Tony Athens
Boating Direct,
A little off the subject, but if you have 10 minutes, want a laugh, and really want to know where Brad comes from, watch this link..........(the end is the best)
http://www.star..... |
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Volvo: General -
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Can I Change For A Volvo Diesel,or Any Diesel Engine,with The Same Stern Drive Of A Aq125a Gas? |
VIEW/REPLY |
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1
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Thu Mar 18 10 11:39 AM |
Mar 17 2010
04:18 PM |
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Roger
Can i change for a volvo diesel,or any diesel engine,with the same stern drive of a aq125a gas? |
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1 Response....
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Yesterday
11:39 AM |
#1 |
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Roger
I know that the outboard drive unit is a AQ270B,C,D, and i know if I can change the AQ125 to a disel engine,with the same outboard drive.
I need help,please.
Thank you |
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Volvo:MD1,MD2, MD3 -
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MD2/2B throttle problem again 2 |
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10
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Thu Mar 18 10 4:05 AM |
Mar 8 2010
10:45 PM |
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James
I posted a while back about the strong spring in the throttle control of an MD2/2B that I was planning on putting in my boat. I was worried that the spring was so strong that the throttle lever would ..... |
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Mar 15 2010
05:25 PM |
#7 |
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James
It´s a small rounded quadrant that is probably around 1.5 inches long.
photo here:
http://public.blu.livefilestore.com/y1ps4ZaOootmHU_L4kEnaLgUO5mGwNVMWdGpGuFs9JMER6NslK8WxMvGgSAah9loXN6lC7I1fLn1_..... |
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Mar 15 2010
09:32 PM |
#8 |
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Trek
Hi James,
Dick helped me out with advice a couple of times, so you are in good hands!
For my little input since I have installed two used VP 2003s and surmounted all kinds of problems:-
Coul..... |
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Yesterday
03:18 AM |
#9 |
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James
I looked for exploded diagrams of the MD2, but could only find diagrams as far back as the MD2B. One of the main reasons I posted here was that I was hoping to find somebody else to compare engines wi..... |
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Yesterday
04:05 AM |
#10 |
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Robert Hess
Sorry if this is redundant, but why haven´t you asked your local Volvo Penta dealer to either repair the pump or get help from the factory?
One suggestion that you´ve probably already thought of... d..... |
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Cummins:QSM Series -
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Throttle Control |
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1
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Thu Mar 18 10 3:03 AM |
Yesterday
01:44 AM |
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Ahidave
My osm11s have a mechanical throttle control to what looks like a varible resitior controler that in turn has three wires going to what looks like the electronic control box on the side of the engine...... |
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1 Response....
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Yesterday
03:03 AM |
#1 |
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Tony Athens
Do this search..
Author: me
words: electronic throttle interface
Go back a few yrs.
Tony |
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Yanmar:GM Series -
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2GM fuel burn rate? |
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3
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Thu Mar 18 10 2:04 AM |
Mar 17 2010
05:59 PM |
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Lee J
My 28´ sail boat has a 1984 Yanmar 2GM (not FWC, not 2GM20). The fuel consumption rate now averages around 0.55 gal/hr. When I first bought the boat four+ years ago the burn rate seemed to be less t..... |
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3 Responses....
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Mar 17 2010
06:56 PM |
#1 |
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Tom
From the engine standpoint, it all sounds pretty good to me. So the issues could be -faulty fuel measurement, dirty air filter or bad RPM gauge. |
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Mar 17 2010
11:39 PM |
#2 |
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David Marchand
1/3 of a gallon per hour sounds about right. My 3gm30f burned about 1/2 gallon per hour with one more cylinder at 2500 rpm. The seawater cooled engine should burn a tiny bit more fuel for equivalent p..... |
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Yesterday
02:04 AM |
#3 |
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hugh C. Brock
the amount of fuel you are talking about is quite small. As your vessel approaches hull speed the amount of fuel burned goes up considerably. the slightest difference in engine RPM will make a treme..... |
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Repowering: General -
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38 Bertram repowering with Volvo IPS 600 |
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24
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Thu Mar 18 10 1:24 AM |
Mar 9 2010
03:12 AM |
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Dieselremote
Vessel new was 1974 Bertam 38 with Cummins 903. Repowered around 1999 with Cat 3208 435hp. Owner decided to step it up by repowering again with Volvo IPS 600. The project started last week and progres..... |
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Mar 13 2010
10:14 PM |
#11 |
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Bert38
FYI, Actually I have no complaints about my 3208s They have been very good and always got me home. I am an application engineer for Volvo Penta and from what I have seen the product is "That Good..... |
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Mar 13 2010
11:38 PM |
#12 |
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Dieselremote
Another good day in the boat yard. Rear bulkhead removed, cats removed, rear bulkhead back in place. Starting to lay out location of IPS units,jack shaft length, and engine placement. The engine brack..... |
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Mar 14 2010
01:01 AM |
#13 |
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Tomas Kempe
You guys are doing an exciting project but looking at the work, the cost I can not see that this will ever be a viable repower alternative to a shaft system. The efficiency will never pay off in any s..... |
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Mar 14 2010
02:03 AM |
#14 |
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Fishn2day
WOW. I thought I stepped over the edge swapping out 3208´s for 6081 John Deeres in my 38 Bert. Yours is way more ambitious with the drives and wish you good luck. |
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Mar 14 2010
12:35 PM |
#15 |
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Karl
Tomas,
It appears that this boat is in no need of a re-power. The owner states that there is nothing wrong with the Cat´s. His motives must be something in addition to fuel economy. (If this boat w..... |
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Mar 14 2010
02:15 PM |
#16 |
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Tomas Kempe
Karl: You understand very well only that you have your Volvo goggels on. My statements are subjective and probably shared by some - it is only money that may be wasted here. Let me make myself clearer..... |
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Mar 14 2010
05:42 PM |
#17 |
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Karl
Tomas,
Agree 100% : "this type of repower is not for average Joe". Pod re-power, in my opinion, will only make sense in limited numbers and it will not be DIY projects.
I have my pod g..... |
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Mar 15 2010
02:54 PM |
#18 |
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Frank J. Foster
You know the interesting thing is that a Detroit Diesel hooked up to a ZF Pod would be just as fuel efficient and less poluting as a common rail engine hooked up to a straight inboard, going the same ..... |
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Mar 16 2010
01:51 AM |
#19 |
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Dieselremote
After the lay out work that was done over the weekend, Brad will be getting started on the fiberglass work needed for the installation of the mounting rings, and engine beds. The existing holes and op..... |
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Mar 16 2010
03:12 AM |
#20 |
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Jhall767
Yea Frank this repower might be more interesting if they left the original engines in for a while to see what difference the pods make. If I replace my DD´s with pods and a new electronic diesel I sh..... |
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Mar 16 2010
09:40 PM |
#21 |
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38Blackfin
Plenty of pics as you go, please, and some of the trim-tab conversion as well.
I, for one, am curious about placement of the drive holes; between the longitudinal stringers?
good luck!
Randy |
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Mar 16 2010
10:39 PM |
#22 |
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Dieselremote
Just a few pictures of the weekend events, in short order the rear bulkhead was removed and the engines removed. The pile of old wiring and hoses was removed most is steering related ( not all) the sm..... |
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Mar 16 2010
10:48 PM |
#23 |
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Dieselremote
John
I can not assure you of 30 plus 30 fuel savings removing DD, but I have done several repowers were I removed DD and install new diesel HP for HP and shaft for shaft they all enjoyed the fuel s..... |
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Yesterday
01:24 AM |
#24 |
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Dieselremote
Randy
the stringers at the transom, pod mount location will be tied into the mount ring for the IPS as well as the transom. This is a critical structrial point and requres a trained glass person fo..... |
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Volvo:40,41,42,43,44 Series -
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Heat Exchanger Boot coming off |
VIEW/REPLY |
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3
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Thu Mar 18 10 12:50 AM |
Mar 11 2010
09:45 PM |
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Bug
Have a TMD40A & MS3 reverse gear. Recently put my engine back in after replacing some seals and replaced the exhaust elbow. My heat exchanger rubber boot blows off after running above idle. The hea..... |
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3 Responses....
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Mar 16 2010
03:15 AM |
#1 |
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Bill Waters
I had the same problem with a TAMD40A. I think the H/E are slightly different. I´m not real familiar with the one you have. The one I had, has a lip around the end. I found that if I used a wide clamp..... |
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Mar 17 2010
12:02 PM |
#2 |
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Joe G
For that boot to blow off sounds like you have a restriction downstream on the raw water side causing higher than normal pressure causing boot to blow off. Remove zinc at h/e and install pressure gaug..... |
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Yesterday
12:50 AM |
#3 |
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Bug
IT was the transmission cooler down stream. The raw water holes were clogged. after a copper brush run through and thorough flushing, problem solved.
thanks to all the ideas! |
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Volvo:40,41,42,43,44 Series -
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Fresh water system |
VIEW/REPLY |
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0
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Thu Mar 18 10 12:28 AM |
Yesterday
12:28 AM |
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Robert Eggleston
I want to flush the coolant from the fresh water system. What is the best way to do this without making a mess? Where is the best place to drain the coolant so I can get it all out? My engines are TA..... |
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NO Responses....
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Yanmar:LY Series -
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Low Oil Pressure & Smoke |
VIEW/REPLY |
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11
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Thu Mar 18 10 12:10 AM |
Jan 29 2010
01:46 AM |
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SeaHorse
New to this forum. Have recently purchased a boat with a Yanmar 6LYA-STP 370 HP engine. Had survey done by local Yanmar dealer and engine got a clean bill of health from mechanic. Boat runs great but ..... |
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Yesterday
12:10 AM |
#11 |
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SeaHorse
Tony, Thanks for all of your helpful info. Noticed the oil pressure sender leaking slightly so I replaced it. With engine warmed up oil presure at idle is now 15/20lbs. As soon as you increase rev´s o..... |
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