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Yanmar:LP Series |
Intermittent power loss. Fuel issue? |
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8
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Thu Sep 2 10 1:00 PM |
Sep 1 2010
02:20 AM |
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David
Hello. I bought my boat, 10 years old with 300 hours. When bought, the fuel had water and “algae” (I know it’s bacteria/fungus). The boat has twin Yanmar 6LP-DTEs, I upgraded the Racor 500s to SeaMax ..... |
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8 Responses....
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Sep 1 2010
02:48 AM |
#1 |
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Tony Athens
David,
This is what I´d do..
Since you have high vac so soon again, you need to determine whether you have clogged a filter again (not likely as you checked it) , OR the CRUD is clogging a suc..... |
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Sep 1 2010
04:25 AM |
#2 |
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Ski in NC
Sounds like a clogged tank pickup. Clean filter and yet still high vacuum. Some builders put screens on the pickup (why???) and if it clogs and tank pickup is not accessible, you´re kinda screwed. ..... |
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Sep 1 2010
04:20 PM |
#3 |
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[DELETED BY AUTHOR]
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Yesterday
01:02 AM |
#4 |
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David
I removed the fuel pick-up and it was as clean as the day it went in! Only 3/8 diameter but no sign of sludge. The pipe is plastic so flexible enough to be removed.
At the top of the pick-up is a n..... |
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Yesterday
02:59 AM |
#5 |
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Tony Athens
David,
These are things we have seen:
1) at the top of the pick-up tube, many builder Micky Mouse designs make a very sharp 90 or worse leaving a spot to catch very small pieces of crud
2) t..... |
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Yesterday
03:00 AM |
#6 |
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Ski in NC
No need for a siphon break, or non return valve (whatever it may be called) on a diesel boat. That stuff is for gassers. Put a regular hose barb in its place. |
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Yesterday
03:24 AM |
#7 |
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Agriffith
Since you have gone this far- add a sump or a valve at the bottom of the tank, that way you can dump a bad batch of fuel or polish it before it hits the mains. An old commercial trick is to buy shitty..... |
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Yesterday
01:00 PM |
#8 |
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David
Thanks all, makes perfect sense. The 1/2 ID pickup will require a new fitting on the tank. There is also the anticipated 90 degree bend and due to clearance removing that will require some thought, pr..... |
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Yanmar:LP Series |
Injector Pump Potential Failure |
VIEW/REPLY |
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2
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Thu Sep 2 10 11:50 AM |
Yesterday
05:13 AM |
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Kevin O´Brien
My 2005 twin 315 Yanmars (6LPA-STP) have performed flawlessly over the last year (purchased the boat with 138 hours on the engines). Two weeks ago, after about an hour of trolling speed followed by a ..... |
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2 Responses....
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Yesterday
05:55 AM |
#1 |
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Winsordiesels
My advice is to pull the Inj Pump and get it to a Pump Room to rum it up sounds like you have a control rod (rack) problem in the Gov Housing, They will run it up and see the fuel deliveries, badly wo..... |
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Yesterday
11:50 AM |
#2 |
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Kevin O´Brien
The boat was used in 2005 and part of 2006, was laid up in 2007 and most of 2008. She had 138 hours when we purchased her in the Spring of 2009. We´ve put 140 hours on her in 15 months and run her c..... |
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Yanmar:LP Series |
Yanmar 6LP_STE´s |
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2
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Tue Aug 31 10 1:46 AM |
Aug 29 2010
11:51 AM |
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Jwalls
I´m having an issue with my boat. Port engine turns up to only 3600RPM and stbd 3750 Rpm´s. I´ve lost 4-5 knots and my fuel burn appears to be 20-25% higher. I did primary and secondary filters, che..... |
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2 Responses....
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Aug 30 2010
05:10 AM |
#1 |
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Clark Leighs
Go to the ARTICLES section - down the L.H. side menu and to 2004 Engine Loading vs Engine lIfe.
The most likely explanation for the rpm loss and black smoke is overloading of the engines from added..... |
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Aug 31 2010
01:46 AM |
#2 |
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Jwalls
Thanks Clark. |
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Yanmar:LP Series |
Injector removal |
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2
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Mon Aug 30 10 10:53 PM |
Jul 2 2010
08:26 AM |
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Joe V
Can anyone please explain the removal and installation process of injectors on a Yanmar 6LPA-DTP? Will a puller be needed?
Thanks |
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Aug 30 2010
10:53 PM |
#2 |
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Fish Witch
There´s an o-ring seal that´s makes it pretty tough to pull out. I used a small piece of wood with a hole in it with a 10mm (if I remember right) bolt and washer threaded into the injector fuel line ..... |
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Yanmar:LP Series |
HP Fuel Pump |
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3
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Mon Aug 16 10 5:32 AM |
Aug 15 2010
08:27 PM |
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Asmith5517
I am having a problem with the fuel pump on my 6LPA yanmar engine where by the RH Timer Cover has popped off shearing the 2 bolts which are supposed to hold it in place! I am in the middle of removing..... |
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Yanmar:LP Series |
Mistery Mavel Oil |
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6
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Sun Aug 15 10 11:50 PM |
Aug 14 2010
09:26 PM |
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Pedro Fundora
someone told my that adding Mistery Mavel Oil to the fuel would increase lubricity. Can somebody verify that this oil would not harm a Yanmar 6LPA? |
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Yanmar:LP Series |
Excessive grayish / white smoke underway |
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1
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Sun Aug 15 10 8:38 PM |
Jul 16 2010
01:52 PM |
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28Topaz
6LP-STE Engine temps are fine @ 185 degrees, plenty of power, fuel economy same as before smoke started, at above 2200 RPM the smoke gets really noticeable on both engines and gets thicker as I increa..... |
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Yanmar:LP Series |
6lpa-stp Mfr´d In 2002 |
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1
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Sat Aug 7 10 12:46 AM |
Aug 6 2010
03:34 PM |
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Jerryr
A newbie here and must add love this site. I have a 2002 28´ True World Marine bought new in 2002. Checking past posts I see that there were problems with the valves. I have 825 hours on mine and n..... |
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Yanmar:LP Series |
Clean And Protect The Motor |
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1
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Sun Aug 1 10 7:01 PM |
Jul 31 2010
02:05 AM |
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Slopoke
This may have been covered already, i tried searching with the terms "clean engine" so if i missed it please let me know..
Any ways, I was wondering how you all clean your motors, then..... |
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Yanmar:LP Series |
Egt Help! |
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1
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Sun Aug 1 10 4:12 AM |
Jul 28 2010
08:37 PM |
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John Gaebel
Background: ~1,000 hours on my Yanmar 6LPA STPs. The engines have ~1,100 hours and have been maintained according to mfgs. specs by approved dealers.
Shortly after purchasing the boat (new) I inst..... |
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Yanmar:LP Series |
V Belt Replacement |
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2
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Sat Jul 31 10 1:03 PM |
Jul 30 2010
07:48 PM |
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Pete_miller@cox.net
My 6LPDTZE is 13 years old and has about 500 hours. I decided to replace all the belts (3) today for the first time. With the new belts on, I cannot get the alternator back to it´s original position o..... |
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Yanmar:LP Series |
6LP EGT Question |
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0
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Wed Jul 28 10 8:32 PM |
Jul 28 2010
08:32 PM |
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[DELETED BY AUTHOR]
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NO Responses....
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Yanmar:LP Series |
Coolant Overflow |
VIEW/REPLY |
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2
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Wed Jul 28 10 3:43 PM |
Sep 7 2009
08:39 PM |
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Joel Fuller
I have a 2001 albin with a 315 hp yanmar. I have orange coolant in system. When boat is run at full throttle motor pushes all the coolant out thru the overflow tank in minutes. Dealer found cracked tu..... |
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Yanmar:LP Series |
Can the intercooler be taken apart and cleaned from the front end? |
VIEW/REPLY |
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3
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Wed Jul 28 10 2:11 PM |
Jul 26 2010
02:17 AM |
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Matt
I want to clean my intercooler, but am curious if I can remove it from the front side of the engine. Will it clear the fuel lines, etc? Normally, I service them when the engines are out, but can´t rem..... |
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Yanmar:LP Series |
6LP-STE Black Smoke |
VIEW/REPLY |
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1
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Tue Jul 20 10 1:23 PM |
Jul 20 2010
12:31 PM |
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George Masters
Ok I have a rebuilt 6LP-STE (with about 20 hours now) running as my port motor. On a throttle up to WOT, I get a big cloud of black smoke from about 1800 rpm - 2500 rpm then I am back to normal. (typ..... |
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