Ok, here is a long post. Just built new 331 stroker. Block was decked and heads were milled .015 for clean up (iron gt40). Compression is about 10.15:1. Edelbrock Performer Intake.
Motor has not been broken in yet. It has been cranked up about 5 or 6 times, ran for a total of probably 20-25 minutes trying to work out idle and such so it could be driven. Noticed small puddles at exhaust pipes, watched for a little while and realized that it was more than condensation. Pulled upper intake, it looked like I was dripping antifreeze into the end cylinders. Pulled intake, re-installed, bigger puddles. Went back, redid gaskets with red gasket maker around coolant ports, changed oil. I haven't tried to restart it yet and see if it still leaks.
I ran a compression test on the cylinders and a compression test on the coolant system. I pumped the coolant system up to 16#. After about 20 minutes it falls about 1#. I don't see coolant in the intake runners (I have the upper intake off at the moment). I have found a few leaks in hoses, etc, been fixing them as I go.
My compression test are crappy. I can't get more than about 25# on any cylinder with the dry test, and with the wet test I get about 50#. Is this normal? I know the rings are not set to the bore walls yet, but would it let this much by?
Intake is torqued to 25# in the "proper" sequence. I did compression test with plugs out of heads.
Any ideas?
Thanks
Motor has not been broken in yet. It has been cranked up about 5 or 6 times, ran for a total of probably 20-25 minutes trying to work out idle and such so it could be driven. Noticed small puddles at exhaust pipes, watched for a little while and realized that it was more than condensation. Pulled upper intake, it looked like I was dripping antifreeze into the end cylinders. Pulled intake, re-installed, bigger puddles. Went back, redid gaskets with red gasket maker around coolant ports, changed oil. I haven't tried to restart it yet and see if it still leaks.
I ran a compression test on the cylinders and a compression test on the coolant system. I pumped the coolant system up to 16#. After about 20 minutes it falls about 1#. I don't see coolant in the intake runners (I have the upper intake off at the moment). I have found a few leaks in hoses, etc, been fixing them as I go.
My compression test are crappy. I can't get more than about 25# on any cylinder with the dry test, and with the wet test I get about 50#. Is this normal? I know the rings are not set to the bore walls yet, but would it let this much by?
Intake is torqued to 25# in the "proper" sequence. I did compression test with plugs out of heads.
Any ideas?
Thanks
