Cobain03
Active Member
i can never get mine to stop chattering. at idle its fine but when you take it on the road it gets rough. i actually got some pretty thick valve covers and you can still hear them.
i can never get mine to stop chattering. at idle its fine but when you take it on the road it gets rough. i actually got some pretty thick valve covers and you can still hear them.
I just went through and checked/adjusted the lifter preload. Some of them did need to be shimmed and I have them all torqueing at about 1/2 turn past zero lash. It does rattle less today than it did before, I found 2 of the rocker saddles were cracked.
302 coupe said:are you saying that proper torque (20 ft-lbs) was had after roughly 1/2 turn of "preload"? I'm thinking the geometry is off somehow....only way to correct that would be with different length pushrods or shims.
SoCalCruising said:Also, according to your earlier post your plugs are gapped to .060". That is way to much gap. Close them down to .035 - .040". Your ignition is going to have trouble making good spark with that gap. I'm not surprised that is has trouble firing as RPMs climb. Try this and and see if it helps.