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Yanmar:LP Series -
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Recommended spares |
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Fri Nov 20 09 10:12 PM |
Today
10:12 PM |
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Kenr.png
Hi
I am finalising the purchase of a Deep V (Black Watch 26) powered by a single Yanmar 6LPA-STZP with just over 600hrs and a new Bravo II leg. To get it from place of purchase to home port will in..... |
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Yanmar:LP Series -
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2 Valve failure - less than 100 hours from complete rebuild! |
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2
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Fri Nov 20 09 7:30 PM |
Today
12:59 PM |
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Go Fish Costa Rica
Well, it happened again. We dropped an intake and exhaust valve and had one of engines completely rebuilt from the pan up. Less than 100 hours from that overhaul we broke a valve bridge and dropped an..... |
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2 Responses....
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Today
01:28 PM |
#1 |
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Tony Athens
Peter,
I may be able to offer some insight, but you will have to send me some very clear pictures of all, including the engine in the boat as it´s installed, the exhaust hook-up and routing, inside..... |
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Today
07:30 PM |
#2 |
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Go Fish Costa Rica
Thank you very much, tony. I guess it can be said that these 6LP-STEs are great engines. All you have to do is fix them. We are searching for a more reliable Cummins B series. We would like to find so..... |
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Yanmar:LP Series -
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Humming whinning sound from engine |
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Mon Nov 16 09 3:47 AM |
Nov 16 2009
03:47 AM |
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Aussie Syd
I have 2 Yanmar 6lp-stp 315hp in my Boat with 87 hours use from new, the engines were installed late 2006, recently I noticed getting this noise from one of my engines intermittently only when the eng..... |
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Yanmar:LP Series -
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Engine Fuel Filter |
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5
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Sun Nov 15 09 4:26 PM |
Nov 13 2009
02:49 AM |
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Gon2deep
I just bought a fuel filter for my 6lpa @105.00 which i like to change 2 times a year .not sure why the price went from 60.00 to 105.00.
my question is can you change the fuel filter / fuel pump on t..... |
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Nov 14 2009
04:58 PM |
#2 |
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William A. Bowden
Gon2Deep, I have been using a Wix replacement fuel filter for years on my 6LP´s. The filter is identical to a Yanmar genuine part without the high price. The price is $15 each. Here is a link:
http:/..... |
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Nov 15 2009
12:18 PM |
#3 |
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Rws
The Toyota fuel filter is available at any NAPA auto parts store.
RWS |
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Nov 15 2009
03:29 PM |
#4 |
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Pedro Fundora
When I bought my boat it had a pair of Purolator fuel filters and the engines smoked a little under cruising speed. It was sort of like a steam. I then changed primary filter (Racor 30 micron) and Yan..... |
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Nov 15 2009
04:26 PM |
#5 |
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Got Diesel
The Napa filter they claim it´s 7 mic. |
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Yanmar:LP Series -
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Oil Leaking |
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Sun Nov 15 09 12:59 PM |
Nov 15 2009
12:59 PM |
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Go Fish Costa Rica
6LP STE 315. We´ve developed 2 progressing oil leaks in a recently rebuilt engine. One appears to be coming from or near the head gasket but we are not seeing a spray, the leak presents itself as a dr..... |
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Yanmar:LP Series -
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Piston shape 6LP |
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14
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Sun Nov 15 09 9:57 AM |
Nov 14 2009
09:09 AM |
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Smuggler
Hi
This winter I will have a 6LP restored, including reboring of cylinders. This calls for new pistons, that are ridicolously expensive here in europe.
It is quite common here to have pistons spe..... |
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14 Responses....
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Nov 14 2009
09:57 AM |
#1 |
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Bace
Hi Erik,
I believe the reason for the inverted dome in the pistons is to make room for the valves when the piston in top.
Maybe it also has something to with the flow inside the cylinder, but this..... |
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Nov 14 2009
03:13 PM |
#2 |
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Ski in NC
The piston is probably the most highly engineered part on a modern high output diesel. The bowl is the combustion chamber, and its shape is critical. Cast in lube oil passages cool the top ring area..... |
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Nov 14 2009
05:27 PM |
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Paul Foulston
Erik,
The shape of the top of the Yanmar piston is absolutely critical to combustion, known as quiescent chamber, and closely linked to injector spray pattern and pop pressure.
Also the technolo..... |
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Nov 14 2009
05:41 PM |
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Got Diesel
I beleave you will not find that piston from Toyota as they never made that engine that HP, I know someone who has looked very hard. |
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Nov 14 2009
06:14 PM |
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Paul Foulston
Hi Tim,
We went through the Toyota fork truck dealer as high hp base motor goes though the Toyota industrial, not automotive network.
Paul |
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Nov 14 2009
06:35 PM |
#6 |
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Paul Foulston
Tim,
Toyota call the high output 220 kW 4.163cc six pot motor somthing like the 1HD engine family in industrial format.
You are quite correct in that the version used in the Land Cruiser has som..... |
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Nov 14 2009
07:24 PM |
#7 |
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Smuggler
Hi
Thanks for all replies, it seems that the 6LP piston shape is more important than i thought. Would it work to replace with Toyota 1HD pistons or only original Yanmar? Here theoriginal yanmars are..... |
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Nov 14 2009
08:23 PM |
#8 |
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Got Diesel
As I understand there is one 1HD piston that is the same but it´s 17 1/2 to 1 and the Yanmar piston is 16 1/2 to one, so you would need to cut the piston. There seems to be no free lunch. |
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Nov 14 2009
08:46 PM |
#9 |
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Got Diesel
Paul, what would that do if you used the higher compression piston´s without cutting it. As I also heard some one used a Toyota long block and put the Yanmar hang ons and he said it ran fine. |
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Nov 15 2009
01:22 AM |
#10 |
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Tony Athens
Although this will not help, as much as I like the 6LP and think it´s really nice engine, I do not consider it a rebuilbable engine..............Why??
This thread says it all.. It´s NOT COST EFFECT..... |
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Nov 15 2009
01:51 AM |
#11 |
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Got Diesel
Tony, I could not agree with you more, you can rebuild it but you can buy a new one for around $19,000. It´s sad when they make a good rebuildable motor that´s a throw a way ( as I always said with ..... |
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Nov 15 2009
02:07 AM |
#12 |
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Tony Athens
Tim,
I wrote this close to 10 years ago.. Nothing has changed at all other than we have new players in the game.. The Cummins B & C still are the most desireable engines ever made for the marine ma..... |
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Nov 15 2009
02:15 AM |
#13 |
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Got Diesel
The word rebuildable in 1970 and 2009 have different meanings, it´s a whole new world from then. Tim |
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Nov 15 2009
09:57 AM |
#14 |
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Smuggler
Thanks again, Tony Paul and Tim for advice, this engine will most likely be restored, however if I cannot find reasonably priced original pistons somewhere I do have to make my homework really careful..... |
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Yanmar:LP Series -
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Tachometer not working |
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6
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Wed Nov 11 09 9:18 PM |
Oct 13 2009
04:12 PM |
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Trav
The tachs on my port engine quit working last time out. Upon cold restart they worked again for a while, then intermittently, then they quit.
How do I test the sender? Where is it? Do they go ba..... |
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Yanmar:LP Series -
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Raw Water Pump Relocate 315 6lp-ste |
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Sun Nov 8 09 7:09 PM |
Oct 27 2009
01:54 AM |
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Robert Munroe
Is it possible to relocate the raw water pump to the front of the engine? Rather than on the side? I can barely get to it in my install and it makes for maintanence issues. Also has anyone removed the..... |
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Yanmar:LP Series -
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Rod through Block |
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7
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Sun Nov 8 09 6:19 PM |
Oct 16 2009
04:34 PM |
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Rico
2004, 6LPA-STP, 315 hp, 7669 eng. hrs, stbd main engine # 3 rod lower piece and collar found in bilge from 3" x 3" x 3" triangular fracture in block. Deep scores seen on crank bearing s..... |
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Yanmar:LP Series -
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One bad day of fishing has lead to this. 6LP-STE making bad noises. |
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12
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Thu Nov 5 09 1:35 AM |
Aug 17 2009
12:33 AM |
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George Masters
I hope you guys can help me out on this one. Anyway here we go... A little history, this engine is a Yanmar 6LP-STE that has about 680 hours. This engine was manufacturered in 1999 and has had regu..... |
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Yanmar:LP Series -
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Engine flushing issue with ear muffs on sterndrive |
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4
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Wed Nov 4 09 11:20 PM |
Nov 2 2009
12:04 AM |
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Speedracer
Wondering if anyone has had this issue: I attempted to winterize the engine but I can get enough water to circulate through the engine when i hook up the garden hose with earmuffs to the sterdrive. M..... |
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Yanmar:LP Series -
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How many cranks before engine starts? |
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4
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Wed Nov 4 09 10:27 PM |
Nov 3 2009
01:41 AM |
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Speedracer
How many cranks would you say is normal before the engine starts? My single 6LPA-STP2 usually starts after the second crank. recently it is starting after the third crank. Does air temperature affect ..... |
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Yanmar:LP Series -
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Oil Change Fitting |
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1
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Tue Nov 3 09 4:49 AM |
Nov 3 2009
02:25 AM |
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Pedro Fundora
I bough a Reverso oil change system for my Twin 6LPA315 motors. I need to make a hose to connect to the oil pan drain in order to have the system drain the oil at oil change time. Does anybody know of..... |
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Yanmar:LP Series -
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Turbo Wash Yanmar 6lpa |
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0
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Fri Oct 30 09 12:23 PM |
Oct 30 2009
12:23 PM |
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[DELETED BY AUTHOR]
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NO Responses....
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Yanmar:LP Series -
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6lp Ste Valve Probs And Reliablity |
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Thu Oct 29 09 1:55 PM |
Oct 28 2009
10:00 PM |
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Parasailsam
Looking at a pair of remans to repower my commercial parasail boat. Have heard some negative stuff about these motors and was hoping you guys could give me the straight truth on these things.
Thanks |
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