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Section	Topic	Details			Replies	Last
Cummins:B Series -	Envirovents are on	VIEW/REPLY			4	Thu Mar 11 10 4:11 AM
Mar 7 2010 02:45 AM Maka Koa   Installed my envirovents today. Graet design. One was installed on the front of the timeing case the other on the oil fill. Thanks again to Brad @ Seaboard Marine!
4 Responses....
Mar 7 2010 06:20 PM #1 Paul H Foster   I did mine last year ,It is one of the best things I have done to to boat .
Mar 8 2010 12:06 AM #2 Maka Koa   It seems to allow more "sound" out of the engine? I was not able to remove the metal tube with the forward cummins breather tube. Any suggestions, I´m damn sure not removing the fuel pump.....
Mar 8 2010 12:20 AM #3 Tony Athens   Just cut the tube and peel it away, so to say.... Takes about 10 minutes in the shop.. Another Cummins design that only lasted a few months before it was X-ed.. To bad, Recon picked it up... Tony
Today 04:11 AM #4 Tinkin   Might we be able to disclose the cost of one of these fine Envirovents?
Repowering: General -	Prop Size	VIEW/REPLY			9	Thu Mar 11 10 3:43 AM
Mar 5 2010 05:58 PM Big T   I repowered my custom cypress trawler. Old engine was cummins 903, 295 hp. Installed a CAT 3208NA, 210HP @ 2800 RPM. Transmition, shaft and prop are the same as on the old engine. Tranny, MG506, 1.97-.....
9 Responses....
Mar 6 2010 01:37 PM #1 Mike Negley   Most prop shops can reduce the pitch by two inches which is an inexpensive fix, but will probably only get you up to 2600 RPMs. Normally you do not want to reduce the diameter, but you may have to. Th.....
Mar 6 2010 01:52 PM #2 Big T   Thanks Mike. The calculator on BD says I should have a prop just under 24" with a pitch just under 17 degrees. Probably too much to cut down on mine.
Mar 6 2010 01:55 PM #3 Ski in NC   With that boat and that engine, you may be doing no harm to run it as is. What rpm do you cruise? If you are not running it hard to get your hull speed, the engine will not be stressed. It´s hard t.....
Mar 7 2010 04:39 AM #4 Clark Leighs   You may still want to depitch your existing prop and then look for a viable used replacement. I expect Ski is correct that as long as you don´t ask for near the max possible overpropped revs you wi.....
Mar 7 2010 05:45 PM #5 Mike Negley   I am quoting now from Dave Gerr´s book PROPELLER HANDBOOK which is the authority on prop design and application. This is from page 20: "Diameter is the single most critical factor in determining.....
Mar 8 2010 09:13 PM #6 Big T   Thanks man, Cruise rpm is between 1000 and 1500. 6.5mph @ 1000 and 8.5mph @ 1500. 11.5mph @2200, probably my max speed any way.
Mar 8 2010 09:16 PM #7 Big T   Thanks Clark. The Pyro is a good suggestion.
Mar 8 2010 09:19 PM #8 Big T   Mike, So it is better to have a bigger prop and reduce the pitch? Like what Clark was suggesting? And maybe install a pyrometer?
Today 03:43 AM #9 Clark Leighs   Get the pyro no matter what you do. It will tell you if you are overloading the engine no matter what prop you have. One of the most important tools you can have with any boat, especially overpro.....
Generators: General -	Which coolant should I use for a Westerbeke 7.6 kw genset?	VIEW/REPLY			0	Thu Mar 11 10 3:32 AM
Today 03:32 AM Fishtales   I have a Westerbeke 7.6 kw diesel genset that was serviced when I bought my boat a few months back. I would like to have extra coolant on-hand. The manual simply says use a 50/50 mix of coolant and di.....
NO Responses....
Volvo:70,71,72,73,74,75 Series -	Tamd 75p EDC Alarm	VIEW/REPLY			4	Thu Mar 11 10 3:30 AM
Mar 8 2010 02:37 AM Hvlm   Just took boat out for weekend. Ran flawlessly. Last night turned keys on STBD engine and received the battery alarm on EDC. Repair manual calls this alarm a "Charge Warning Lamp" whereas.....
4 Responses....
Mar 8 2010 03:04 AM #1 Fishn2day   test alternator with a voltmeter and see what it reads. If it´s less than 13.4 volts, it needs repair. Had TAMD 71´s with the alternator pulley on inside facing motor and they are French alternators. .....
Mar 8 2010 03:35 PM #2 Hvlm   Will look into that - thanks!! The repair manual calls the alarm a Charge Warning Alarm. The engine manual says that it is an Alternator alarm. If I have not started the engine yet - why would .....
Yesterday 10:40 PM #3 Mike.c   Hank, are we talking about the the volvo alarm panel or the lcd display? If you have access to a volt meter as stated check voltage at b+ terminal on back of alt. While there also check the other t.....
Today 03:30 AM #4 Hvlm   Thanx Mike! I will check the suggested items and report back. You are correct in assuming rectangle red alarm display near ignition. I appreciate your suggestions.
Cummins:C Series -	Heat Exchanger Service	VIEW/REPLY			3	Thu Mar 11 10 3:25 AM
Yesterday 03:30 PM Boatingdirect   I have noticed that one of the end caps on heat exchanger on my 2002 6CTA is leaking resulting in everything below it corroding(ofcourse it is the outboard exchanger so I rarely see it). It has a 100.....
3 Responses....
Yesterday 04:38 PM #1 Ski in NC   When off, do a super job cleaning the end cap and hx seating surfaces where the gasket goes. Use factory sendure (or cummins) gasket and bolt donut. Chase zinc hole with a 1/2"npt tap. Sometim.....
Yesterday 06:11 PM #2 Boatingdirect   Perfect. I never thought of cleaning out the zinc hole threads. Thanks for the advice!
Today 03:25 AM #3 Overtemp Marine   Hi Steve, I would recommend after you remove the Heat Exchanger and are going to replace the end cap gaskets anyway try using http://www.rydlymemarine.com/ using a rod to clean the tubes wont get a.....
Caterpillar:C12 -	Source for (replacment) engine block heater element ?	VIEW/REPLY			3	Thu Mar 11 10 3:06 AM
Yesterday 01:46 AM Steven Sheftel   I´ve tried KIM Hotstart but the part they show for C-12 is not the element that I have in my engines. Mine are 5" long overall length, have a 3/4" pipe thread, 240 volt / 1000 watt. The ac.....
3 Responses....
Yesterday 02:02 AM #1 Tony Athens   If what you are looking for uses a 3/4" pipe thread, it´s the same unit that we use in the B series Cummins.. I would not recommend a 1000W heater unless you have good shore power and a thermosta.....
Yesterday 02:48 AM #2 Dave   These are available through your Cat dealer. 1737260. This heater has a thermostat.
Today 03:06 AM #3 Overtemp Marine   Hi Steve, I was hoping after our Heat Exchanger Service the other day you would be able to find the broken Block Heating element from KIM Hotstart I wonder if Gregory Poole in NC or Pantropic here .....
Volvo: General -	POS fuel cooler	VIEW/REPLY			2	Thu Mar 11 10 2:36 AM
Yesterday 11:24 PM David DiSesa   Who would design something like this for salt water use. An aluminum tube with a brass bundle pressed into it. This one is 2 years old and has just turned 200 hours. Dealer says " we replace them.....
2 Responses....
Today 02:08 AM #1 Tony Athens   Is that from a late Volvo? Tony
Today 02:36 AM #2 David DiSesa   Yup. Latest and greatest. The fittings I put on for testing. Uses the banjo´s. Engine is a 2007 6-310-B BT. I got in a arguement with the dealer when I asked if he tests them. He tried to tell me t.....
General Diesel: General -	Transom Soot	VIEW/REPLY			4	Thu Mar 11 10 2:29 AM
Yesterday 09:04 PM Fishstix   Can anyone recommend a good cleaner for removing diesel soot off of the transom of a fiberglass boat ? I purchased a product on the internet called " Amazing Roll Off " and the results were .....
4 Responses....
Yesterday 09:44 PM #1 South Dade Paul   Cleaner wax regularly. I wash the transom after each trip with Orr-Pine w/wax. Elbow grease is key.
Yesterday 10:43 PM #2 David Marchand   On&Off Cleaner should get it off. It has an acid base which is what is needed to cut though the cascium/magnesium salt build up at the waterline. David
Today 12:17 AM #3 Alb28   Had a friend (chem E) look a this problem....made me up a batch that works like magic....dont even have to rube hard.....send me your address and I´ll send you a small bottle for free to try.just l.....
Today 02:29 AM #4 Fishstix   ALB28...When I try to email you, it comes back as undeliverable. my mailing address is Joe Miranda Aquifer Drilling and Testing Inc 9 Monroe Street Tr.....
Volvo:40,41,42,43,44 Series -	Parts Source	VIEW/REPLY			0	Thu Mar 11 10 2:00 AM
Today 02:00 AM Flying Fish   I´m outfitting an old trawler with TMD40A Volvos. What is the best source for items like impellers, Oil coolers etc. Is there a good source or should I just surf around for each item? Any help is a.....
NO Responses....
Detroit:71 Series -	Injector timing on 8v71n	VIEW/REPLY			6	Thu Mar 11 10 1:10 AM
Mar 7 2010 01:39 AM Pakie   I have 8v71n with n70 injectors. First are these too big, if not, what should the timing be set too? 1.460 or 1.484?
6 Responses....
Yesterday 03:00 AM #1 Pakie   Can someone respond!
Yesterday 03:22 AM #2 Ski in NC   My book shows 1.460 for n70/non turbo. That injector is about normal for a -N marine engine. Some use n80, but that is big.
Yesterday 10:36 AM #3 Pakie   Thank you. We have read that 1.484 is for advanced timing. What actually happens if I change the height? Does the power change? Will the engine run cooler or hotter? Will I just dump more fuel that I .....
Yesterday 02:34 PM #4 Ski in NC   1484 is for advanced CAM timing. If you advance the cam one tooth, then fuel lobe hits injector earlier, and fuel will inject earlier. So 1460 with std cam timing and 1484 with advanced cam timing w.....
Today 12:51 AM #5 Pakie   We checked in the pass for the label plate and did not find it. What would be the effects of setting the height to 1.484 if it is not advanced timing. I am going to have the rack and governor checke.....
Today 01:10 AM #6 Ski in NC   No harm from trying 1.484. If it results in late injection timing, then engine may be harder to start (actually should start fine) and lower power and more grey smoke at full load.
Yanmar:JH Series -	4jh3e Loosing Rpm	VIEW/REPLY			4	Thu Mar 11 10 12:36 AM
Mar 8 2010 12:55 PM Edana   During a rough offshore passage the engine quit due to a clogged filter stirred up by the rough seaway. The diesel fuel was polished and new filters installed, engine bleed, injectors bleed,started fi.....
4 Responses....
Mar 8 2010 07:01 PM #1 Gordy88   Edana, Go through all that you did when you changed the filters, Check everything is on correctly and tight, You could be drawing air somewhere in the system, Chances are it is something you have .....
Yesterday 09:54 PM #2 CaptEdana   After checking the fittings and pick up tube we finally pulled the Racor housing. At the elbow where the fuel line enters the Racor we found an enormous amount of black goo. Upon cleaning that out, re.....
Yesterday 09:58 PM #3 South Dade Paul   Monitor Racor bowls regularly and drain the goo before it clogs up the valve. Keep plenty of Racor filter spares on hand until you get most of the goo out of the tank. Polishing most likely did not g.....
Today 12:36 AM #4 CaptEdana   Thanks Gordon and Paul I´ll keep monitoring the bowl for goo. This is probably the first line of defense in keeping the engine running normally. I also switched to algex-705. We were worried that .....
Cummins:QSB Series -	Alternator/starter wiring	VIEW/REPLY			11	Wed Mar 10 10 11:27 PM
Mar 6 2010 04:13 AM Howard   I have a single QSB5.9 engine with a 22SI alternator. There seems to be a cable from the starter to the alternator with a covering that is painted white, indicating to me that this is a Cummins facto.....
11 Responses....
Mar 6 2010 04:58 AM #1 Ski in NC   Just guessing without a schematic. Going off your description, the starter battery is directly tied to the alternator provided the switch is closed. And the other two batteries go through the isolat.....
Mar 6 2010 05:20 PM #2 Howard   Ski I have included a schematic that shows what I think may be the redundant wire from alternator to starter. The drop of the FET is probably around 50mv at low currents (fully charged battery). Sy.....
Mar 6 2010 07:06 PM #3 Ski in NC   No risk to alternator, provided there is somewhere for output to go, and going to a battery through an isolator provides that. So try it and see if alternator wakes up and starts charging. Some alte.....
Mar 6 2010 07:15 PM #4 Howard   Ski OK I will give it a try, I suspect your right. If I leave the white link in the system then if the house or thruster bank is low then they will get current from the start battery when the engine.....
Mar 6 2010 07:38 PM #5 Ski in NC   Good point!! I didn´t think of that. House then will discharge starter bank through link and isolator. Pull the link and try it.
Mar 9 2010 01:27 AM #6 Howard   Ski Well a big surprise! I took off the white wire and you guessed it, no voltage out of the alternator. Put it back and 14 volts so it looks like the 22SI is not self exciting or the remote sense .....
Mar 9 2010 03:01 AM #7 Tony Athens   Howard, May I offer something just in case you want to take the full advantage of understanding what your diode isolator can do and how it could work to fully protect your batteries from one feedin.....
Mar 9 2010 04:03 AM #8 Howard   Tony Interesting comments, item 1 looks very easy to do. Modifying the 22SI to a 3 wire system looks hard I suspect I need to take the alternator off the engine to modify it and as usual on a boat i.....
Yesterday 08:39 AM #9 Colin W   Hi Howard, to my mind, the above seems very complicated compared to a Voltage Sensitive Relay - I´ve got two of them on my boat, a 24v to separate the start and windlass batteries, and a 12v to separa.....
Yesterday 11:04 PM #10 Howard   Colin Thanks for your comments but I am trying to fix a problem with my alternator wiring. Since there is a sense lead on the alternator I want to raise the voltage at the alternator to compensate f.....
Yesterday 11:27 PM #11 Edstillfishing   I just had similar issue. I ran the excite lead to a normally closed 7lb preasure switch. I plumbed it into my fuel system. The switch close´s at 7lbs and turns on altenator. If engine is not running .....
Volvo:60,61,62,63 Series -	Changing thermostat - TAMD63P	VIEW/REPLY			2	Wed Mar 10 10 11:22 PM
Mar 7 2010 02:12 PM Endorfin   I´m planning on changing the thermostat on my starboard TAMD63P and from after looking at the manuals, appears to be a rather simple task. I am buying all new gaskets and o-rings for the job. There .....
2 Responses....
Yesterday 10:49 PM #1 Mike.c   Bruce, usually never have to replace seal unless engine has gone into an overheat condition and steam has distorted it. Just drain down coolant and replace stat. Be mindful when refilling coolant, .....
Yesterday 11:22 PM #2 Endorfin   Mike, thank you for the information. I´ve never done this before and it looked to be a simple task, however things are often never what they appear to be. Your response has confirmed my read on thin.....
Volvo:40,41,42,43,44 Series -	Changing injection pump from 41A to 41B	VIEW/REPLY			2	Wed Mar 10 10 10:08 PM
Yesterday 03:25 AM Bill Waters   I have heard it is possible to have an injection shop change the settings on an injection pump. I have a spare pump # 838683 NR 0460 416 047. I think this is supposed to be for a 41A. I talked to.....
2 Responses....
Yesterday 05:36 AM #1 Ed H   I went through this with what I think was a 42 pump number that I bought used for my 41b´s. I went through a lot with the Bosch techs (they don´t speak Volvo at all!!) and I ended up with something t.....
Yesterday 10:08 PM #2 Mike.c   Bill, the key to this are the numbers on the side of the injection pumps example, ve6/11f 1800 l218-7. Those numbers will help identify the engine is is used on. Volvo penta has it own set of s.....
Volvo:MD1,MD2, MD3 -	MD2/2B throttle problem again 2	VIEW/REPLY			5	Wed Mar 10 10 9:08 PM
Mar 8 2010 10:45 PM 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 .....
5 Responses....
Mar 8 2010 10:58 PM #1 James   This is a repost since I can´t access the old thread. I have tried the suggestions of using a spring and using a series of cable clamps to make a friction throttle cable. I have also adjusted the .....
Mar 9 2010 01:19 PM #2 Dick V   The old throttle control was a round disc with a plate that was tightened down to create friction to stop creep. There is only a few ways to solve problem. You have to create friction either at cable .....
Mar 9 2010 06:33 PM #3 James   Thanks Dick, Friction just plain didn´t work. I applied enough to almost stop the lever from creeping back and that was enough to break the control cable. I´ve since talked to somebody who believe.....
Mar 9 2010 09:06 PM #4 Dick V   Only adjustments are with injection pump shimming and governor set up. Neither are hard but do require a depth micrometer to accomplish. Depending on age of your engine you may need to also change gov.....
Yesterday 09:08 PM #5 James   I was just down at the boat again trying to figure out a way to jury rig the controls so I can at least get it hauled out. I ran it a bit and played with the control arm on the engine. While it is.....

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