i have two Mercuriser 350 on my 310-2007 and i am having problems with compressions on one engine. The mechanic told me there's nothing to do about it but i wonder if anybody here has any recommendation before i give up.
2 years ago i did a compression test with these results:
COMPRESSION TEST
PORT ENGINE : HOURS 201
1) 180lbs 2) 170lbs
3) 175lbs 4) 145lbs
5) 145lbs 6) 180lbs
7) 180lbs 8) 163lbs
Last month the result was much lower:
COMPRESSION TEST (PORT)
2) 168lbs 1) 140lbs
4) 125lbs 3) 130lbs
6) 138lbs 5) 141lbs
8) 149lbs 7) 165lbs
I have no idea what may be the problem i will appreciate any guidance or ideas maybe ask the mechanic to do some attempts to improve it - the engine started to consume more gas and the max RPM i can now get to is only 4250 - about 15-20% less then my other engine..
Andrea
2 years ago i did a compression test with these results:
COMPRESSION TEST
PORT ENGINE : HOURS 201
1) 180lbs 2) 170lbs
3) 175lbs 4) 145lbs
5) 145lbs 6) 180lbs
7) 180lbs 8) 163lbs
Last month the result was much lower:
COMPRESSION TEST (PORT)
2) 168lbs 1) 140lbs
4) 125lbs 3) 130lbs
6) 138lbs 5) 141lbs
8) 149lbs 7) 165lbs
I have no idea what may be the problem i will appreciate any guidance or ideas maybe ask the mechanic to do some attempts to improve it - the engine started to consume more gas and the max RPM i can now get to is only 4250 - about 15-20% less then my other engine..
Andrea