Yanmar 6lpa m dtp for repower

BiminiRun

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Info : good , problems, are the measurements in metric? mounts 287 across front mount , any one know conversion? Thanks
 

Tunacious

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Are you sure of the engine code? Is this a new engine or running take out? I'm aware of 6LPA-STE at 315 hp and 6LPA-DTE at 260 hp.
 

BiminiRun

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This is the drawing of 6LPA-STP at 315 HP. It is the same engine as 6LPA-DTE/DTP at 260 hp. The 287 mm distance ofengine mounts are shown. That measurement is from the engine center line, so you need to double the distance. Looks like 287 mm is equal to 11.3" each side.
I called mack boring . millimeters, Thank You , another boater said 315 would be a good choice, I am on the fence with the 4lv 250...
 

Tunacious

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I called mack boring . millimeters, Thank You , another boater said 315 would be a good choice, I am on the fence with the 4lv 250...
It may depend on price and desired speed. You will need a larger shaft and everything that goes along with increased HP of the 315. I looked at the 4LV-250 3 years ago and it is surprisingly similar to the 4LHA line. The 4LHA line was very reliable. I owned the 240 for 12 years and a pair of 200 for 5 years. Never had a problem. That said, if you are looking at the LP- 315 is a good engine. I do not know the new versions, but the 6LP I know have a timing belt and 24 valve heads. More maintenance.
 

BiminiRun

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It may depend on price and desired speed. You will need a larger shaft and everything that goes along with increased HP of the 315. I looked at the 4LV-250 3 years ago and it is surprisingly similar to the 4LHA line. The 4LHA line was very reliable. I owned the 240 for 12 years and a pair of 200 for 5 years. Never had a problem. That said, if you are looking at the LP- 315 is a good engine. I do not know the new versions, but the 6LP I know have a timing belt and 24 valve heads. More maintenance.
working on it , probably stay with 250, Thank you
 

bigjay

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I had the 315 on two of our company workboats. we ran the boats overweight regularly and they stood up well.
only related problems were carbonized turbos.
depending on the hull your are repowering the LV 250 may be the better fit.
our lv 250 is going in now

1614041175348.png
 

winterking

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bigjay

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Hi Tom,
Yes, the lv 250 is going into a 28 cape dory formerly with a tamd41a.
going with a 72c 1.9:1 3800 rpm 4 blade 18", pitch tbd.
Estimate 22-23 kt top end 14kt cruise.
Previous owner had upgraded and replaced a lot of components on the engine and was running well at takeout.
Our concern was the transmission (MS4a) which was mechanical and the weak spot IMO.
Speed is not the rationale for repower, reliability and ability for worry free cruising primary factors.
We looked at a number of engines including another volvo, the LV 250 was the best engine IMO in a number of respects
The extra horsepower and great torque curve will make it a different boat.
We're pretty psyched.
 

winterking

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