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Forum: Engines and Propulsion Systems

21-03-2011, 11:42

Replies: 44

Yanmar Engine Compression Test Values

Views: 53,771

Posted By kentheighton

Re: Yanmar Engine Compression Test Values

Compression tests were done with a cold engine.

Kent

Forum: Engines and Propulsion Systems

20-03-2011, 11:02

Replies: 44

Yanmar Engine Compression Test Values

Views: 53,771

Posted By kentheighton

Re: Yanmar Engine Compression Test Values

Yes I did run the boat and there was no noticeable smoking other than the first perhaps 15 seconds. She turns right over and seems to run fine. My surveyor suggested that the blowby is recirculted...

Forum: Engines and Propulsion Systems

19-03-2011, 17:56

Replies: 44

Yanmar Engine Compression Test Values

Views: 53,771

Posted By kentheighton

Re: Yanmar Engine Compression Test Values

New information from the mechanic that did the first set of tests:
Dry all cylinders 250psi. with aprox. 25 cranks or rotations with a diesel pressure gauge.
Wet
cylinder 4-330
cylinder 3-330...

Forum: Engines and Propulsion Systems

16-03-2011, 14:30

Replies: 44

Yanmar Engine Compression Test Values

Views: 53,771

Posted By kentheighton

Re: Yanmar Engine Compression Test Values

Back in post #23 I relayed comments from the boat caretaker. Sounds like the only symptoms so far are blow by as evidenced from the oil filler cap and the compression test done by a mechanic....

Forum: Engines and Propulsion Systems

15-03-2011, 14:43

Replies: 44

Yanmar Engine Compression Test Values

Views: 53,771

Posted By kentheighton

Re: Yanmar Engine Compression Test Values

Alledgely 2300hrs on the engine. The mechanic is Yanmar certified whatever that is worth. Quoted message from boat cartaker from yesterday:
All I can tell you is that today, and I presume because of...

Forum: Engines and Propulsion Systems

15-03-2011, 10:53

Replies: 44

Yanmar Engine Compression Test Values

Views: 53,771

Posted By kentheighton

Re: Yanmar Engine Compression Test Values

The engine is a Yanmar 4JH2-TE 1993 vintage. The surveyor did a simple test and determined there was excessive blow by. His findings started my inquiry. Manufacture specs for compression for this...

Forum: Engines and Propulsion Systems

14-03-2011, 21:41

Replies: 44

Yanmar Engine Compression Test Values

Views: 53,771

Posted By kentheighton

Yanmar Engine Compression Test Values

I have a boat with the measured compression of all 4 cylinders is 240psi which the mechanic is considering "normal". When I challenged him and suggested that seemed a bit low he responded by saying:...

Forum: Monohull Sailboats

25-08-2010, 16:46

Replies: 267

Vote On the 'Best Blue Water Cruising Sailboat of All Time'

Views: 262,252

Posted By kentheighton

Any comments on the Moody 42 late 1980's vintage?...

Any comments on the Moody 42 late 1980's vintage?

Kent

Showing results 1 to 8 of 8