Inliners International Forums General Discussion Engines #6 cylinder weak. ARGH. Pls help.

I'll get better numbers later on but I got roughly 130psi on both #6 and #5. (WOT, almost cold). My leakdown tester isn't reliable as far as % numbers go so I won't quote numbers, but they were the same between #5 and #6, more or less. The gauges would still show a difference if there was one.

Good idea about the cam. I'll try to measure and see if there is a difference in valve lift. This engine suffered from low oil pressure when I got the car. It has had the distinct PHUTT for a long time. Nothing seems to make it go away.

Plugs are brand new, and I even replaced the #6 with another brand new one.

Worn out stock distributor with a Pertronix pointless kit. Those have has worked well for me in other engines, distributor wear no longer affects timing. I did try with points and condenser first. No difference.