Random Question about Engine Compression

[jasguild]

I was just wondering what are the main sources of compression loss.

The most obvious to me would seem like a loss of lubrication, but I am curious if there are other things within my control that I can do (or avoid doing) to extend the longevity of the engine.

Sincerely

 

[Seadoobuddy]

Yes, lack of oil will kill a motor quickly. Also using the correct oil too is important.
Also air leaks could make a lean burn which is bad too.

RE: loss of comp could be due to bad or loss of rings, hole in piston, etc.
The members here with more knowledge of the Merc engines will answer shortly.

 

[Coastiejoe]

Oil is the biggest.

Lack of and wrong/poor quality oil.

Overheats can also affect it but oil is the most important thing you need to do to an engine.