Re: Mercury 1500 compression
Hi Mr. Haney,<br />Your inner water jacket that cools the exhast ports sounds like it is leaking. This creats steam and coroades things faster than normal. This would also explain why the bottom two cyl are low on compression. Fix the pump to as it will cause a lean burn problem at mid to high speed, a bad thing.<br />Your bottom two pistons are probably scuffed<br />as it is now. You can tell buy looking when the outer water jackt is off. You have to pull the powerhead to do this. So run the motor down the lake and turn the key off. After everyone settles down quickly pull the plugs out. If there are water beeds on them or they look milky, then the inner jacket gasket is the problem.<br /><br />------------------<br />...have fun...corm<br /><br />cubic inches = power<br />power = speed<br />speed = FUN<br /><br />Email me if you need to.