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Old 07-08-2020, 01:13 PM   #21
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A few articles by Steve D'Antonio may be helpful for prep. Not a substitute for a mechanical survey.

https://stevedmarineconsulting.com/t...engine-survey/
https://stevedmarineconsulting.com/b...hase-guidance/
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Old 07-08-2020, 01:27 PM   #22
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Originally Posted by bligh View Post
I am asking for them to be run at full tilt for 10 minutes each and the head gaskets will be inspected at that time.
Not sure I would allow 10 minutes at WOT. 2 to 3 would be enough to learn if they would over heat.
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Old 07-08-2020, 02:42 PM   #23
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Read the Steve D article on Engine Survey.

5-10 minutes at WOT
Then 30-mins at 80% Load

"Nearly all engine manufacturers warrant their engines to operate at WOT for 10-minutes, often much longer without encountering problems with overheating, fuel and air starvation, provided the engine has been properly installed and maintained."

If the seller is uncomfortable with this, you may want to find out now before you hire people. Or decide you're okay with a short duration WOT test. Personally, when buying, I always recommend the seller provide the captain as I don't want to be responsible for any helm time (your mechanic, once you find one, will agree). As a seller, I'd be nervous about this and would certainly pre-test to make sure I'd pass. But I do believe it a reasonable test. Like JLeonard , I'd definitely be reluctant too - 8-seconds as in Bull Riding is a long time. 10-minutes would go at glacial pace......

Good luck!

Peter
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Old 07-10-2020, 09:21 AM   #24
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Originally Posted by bligh View Post
I know. But I dont seem to have a choice. Everyone I call says they are 2 to 4 months out.



Is Ski is available to fly out there?
So, if all the good surveyors are 2 to 4 months out and the broker's surveyor is available immediately, what does that tell you?
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Old 07-11-2020, 02:33 PM   #25
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Pet surveyor!
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Old 07-11-2020, 04:27 PM   #26
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Many Lemans are rebuilt using rebuilt parts. The blocks and parts are often 50 years old and only the rebuilder knows how close to spec everything was when rebuilt.

My Lehman has 3800 hrs on it now and hasn't gone over 1800 RPM for 8 years and 3500 hours except for momentary bursts when docking.

I dont care as the oil analysis is great and it keeps on chugging.

At what point is testing max rpm for 10 minutes and 80 percent for 30?

If I could buy a bolt in exact swap engine of 50HP, I would if this one ever dies.

Kinda silly that I have to torture test it for a new owner who will probably run it just like me.
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