Compression testing a potential boat. Smart or overkill?

[vetplus40]

Great points folks. Thank you!
I got to thinking that I have bought several used cars and never performed a compression check. That said, one was done on my current boat by the dealer.
What I am finding out is that on some boat models, the plugs are very hard to get to and access to them requires removal of panels and other items. Not very practical in these circumstances.

 

[tpenfield]

Great points folks. Thank you!
I got to thinking that I have bought several used cars and never performed a compression check. That said, one was done on my current boat by the dealer.
What I am finding out is that on some boat models, the plugs are very hard to get to and access to them requires removal of panels and other items. Not very practical in these circumstances.

Yes, that is why it is best to have a certified mechanic do the test.
Since boats tend to sit for extended periods of time during their life, operate at near their peak horsepower capability, and have water mixing with the exhaust, it is more likely that you would want a compression test on a boat rather than a car.