Still rocker arm woes...

[65shlbycln]

Well, I went through all the rocker arms and made sure they were snug with just enough play in them. Drove the car for about 3 minutes, and this horrible squeaking noise came back, and louder than ever today.

Am i over tightening them down? I really dont think i am? But, i can't figure out what is wrong.

If i didnt over tighten them down, will it cause my upper RPM power to lag, since the valves won't open enough?

I'm scared that i'm tightening them down too much.

Sometimes i wish i actually knew what i was doing under that hood.

Help!

 

[JB66]

I didn't catch if your cam was hydraulic or not. Assuming it is (and the cause for your concern), If you didn't get an adjusting procedure from the cam manufacturer, for an engine running adjustment, Ford shop manuals call for an additional 3/4 of a turn after zero clearance to center the lifter.

 

[Max Power]

And they shouldn't loosen up. Describe your rockers and lock nuts, or better yet, take a picture.

 

[thehueypilot]

Do you have hardened guide plates and push rods to go along with your new roller rockers? If you don't I think the squeaking is your pushrods getting smaller in diameter rather quickly.

 

[skywalker]

Did you get the poly locks yet?

 

[65shlbycln]

I do have hardened pushrods and guideplates.

i have CAT roller tip rockers. Not full roller rockers.

The lock nut has a bottom washer type thing that is curved where it sits in the rocker, and is flat on top. Then it has a nut that holds it down in place.

 

[skywalker]

a poly lock will be a long nut with a small allen head type screw in the top.