Recently built 450 but still no compression.
Posted October 23, 2010 - 08:19 AM
has not run since.
the intake valves were looking pretty shot so they were replaced. The center intake valve will not make clearances even with the smallest shim. I had .02 taken off the top of the valve but it still wont clear with the smallest shim. Could this be my compression problem?
Also i put a weisco 13.5:1 piston in. The stock piston was really wobbly in the cylinder. The new piston fits well and im still left with no compression.
New timing chain was also put on.
Any help would be great.
Posted October 23, 2010 - 09:25 AM
As far as I know, if you replace valves, you also have to have the seats redone in the head as well (usually at a shop). Someone can correct me on that if I'm wrong.
Is your cylinder in spec? If the original piston was "wobbly", I'd diffidently be taking a hard look at the cylinder as well.
Posted October 23, 2010 - 06:45 PM
Posted October 25, 2010 - 11:17 AM
Posted October 26, 2010 - 06:09 AM
As for the fuel, its getting fuel, i gave the throttle a few twists while trying to kick over.
And for the auto decompressor, thats kind of what we were figuring.
Not going to have a chance to work on it for a few weeks because im away at school, but will keep this updated and let you know whats up with it as soon as i know.
thanks for the replies.