what is the compression for 175 Mariner

[peterpeter]

Just want to know compression for new and worn conditions and what would be totally useless to give low power.

 

[JB]

Re: what is the compression for 175 Mariner

Over 100psi and ranging less than 15% is a fair general rule, Peter.<br /><br />The important factor is the range. If one or two are way low you have trouble.<br /><br />Good luck.

 

[dingbat]

Re: what is the compression for 175 Mariner

Depending on the motor you should be somewhere @ 125 PSI. Anything more than a 5-10% variance and you've got troubles brewing.