Sunday, June 5, 2011
Saturday, December 4, 2010
Flywheel end of lower end. New aluminum flywheel, 7.5lbs as compared to 23lbs for stock. Also pic of all new balanced parts before they are installed in block. And a frontal view of completed rebuilt lower end of motor.
Wow, I have completely ignored my blog for a very long time. The car is completed. I drove it quite a bit this summer. I kept having a nagging issue with motor. It had an of throttle backfire that I could not get rid of. I kept thinking it was leaky exhaust header issue. It got progressively worse, to the point that on hard throttle it would start missing at @ 5ooo rpm. I got frustrated and decided I was going to find the source of the problem once and for all.
I started out by replacing ignition wires. Did not help. So I decided to perform a compression test. Really bad news. Only 80-85 psi in cylinders 1,2, and4. Number 3 cylinder had absolutely no compression. Ran a leak down test and it confirmed the compression results. Time to tear engine down.
After tear down, I discovered # 3 piston was broken. Game plan: New 10:1 CR pistons and liners. Complete bottom end rebuild. High performance cams and complete head rebuild. Pics to follow