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 Compression question 
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MMT Member

Joined: Fri Mar 07, 2014 5:33 pm
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Post Compression question
I own a stock 2013 mud buddy 35hp with 70 hours and I just found out that some how I had water in my oil and gas (not really sure if it was a kid walking by the boat or just condensation). I tried to start my motor on the lake and it was running very poorly. I put it back on the trailer and changed my oil and it was a milky yellow. I also put brand new gas in the motor. The engine seems to idle and run good now but I decided to check my compression. The the left side where the oil fill is reads 99 and the other side reads 87. What should the numbers be? What would be considered needing replacement?

Thank you


Mon Jul 11, 2016 5:56 pm
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MMT Elite Member

Joined: Wed Mar 11, 2009 12:45 pm
Posts: 9869
Post Re: Compression question
Did you check it with the throttle completely open?

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Mon Jul 11, 2016 6:01 pm
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Joined: Fri Mar 07, 2014 5:33 pm
Posts: 23
Post Re: Compression question
I just retested the the compression holding the throttle and it says 124 and 130


Mon Jul 11, 2016 7:20 pm
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Joined: Mon Feb 06, 2012 6:13 pm
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Location: D'town, LA
Post Re: Compression question
When my PD was stock, I had 125 on one cylinder and 130 on the other.


Mon Jul 11, 2016 7:32 pm
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Post Re: Compression question

_________________
Refurbishing a Prodrive


Mon Jul 11, 2016 7:32 pm
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Joined: Fri Dec 18, 2009 8:10 pm
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Post Re: Compression question
junk


Mon Jul 11, 2016 7:37 pm
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