Pedistal rockers and shims

P

proxses

Founding Member

Dec 12, 2000

620

0

0

Dayton, Oh

Apr 10, 2005

#1

• Apr 10, 2005

• #1

I have a set of 1.6 pedistal roller rockers that I had on my stock heads.
Now I just put a set of Edelbrocks on, and I can't get the preload right.
I have .060 and .030 shims. With the .060 shim in, the valve will just barely open. I'm talking about .001-.002 inches. But it is still moving. But if I ads the .030 shim to that, then the pushrod can move up and done just a bit.
What should I do?
Also, I don't want to remove these heads for any machining.
Is the slop a better option? I know that the valves can't hang open at all, otherswise I would have poor performance.

 

ram360

Founding Member

Oct 19, 2002

2,162

1

59

Pennsylvania

Apr 10, 2005

#2

• Apr 10, 2005

• #2

While spining the pushrod on one hand tighten the rocker arm until the pushrod stops spinning after that you should be able to toque it in less than one turn. If you can't you'll need to shim up the rocker arm.

 

bluevenom867

I will have images of molesting stuffed animals in

Dec 15, 2003

1,704

1

0

St.Petersburg,FL

Apr 10, 2005

#3

• Apr 10, 2005

• #3

Get a longer or shorter pushrod.If not,custom shims .

 

M

macx

New Member

Jul 18, 2004

228

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0

SE Missouri near Cape Girardeau

Apr 10, 2005

#4

• Apr 10, 2005

• #4

http://www.lincolnsonline.com/article78.html

I put Ebrocks on a 351 and found out that
Ford even makes the right length pushrods
for that application! That was with pedestal rockers.

You could probly look up the part # on
the Ford Racing internet catalogue.

 

ram360

Founding Member

Oct 19, 2002

2,162

1

59

Pennsylvania

Apr 10, 2005

#5

• Apr 10, 2005

• #5

If the shims don't work you might want to look into an adjustable pushrod. That can help you measure for the correct length pushrod if you need to go that route.

 

bluevenom867

I will have images of molesting stuffed animals in

Dec 15, 2003

1,704

1

0

St.Petersburg,FL

Apr 10, 2005

#6

• Apr 10, 2005

• #6

ram360 said:

If the shims don't work you might want to look into an adjustable pushrod. That can help you measure for the correct length pushrod if you need to go that route.

Click to expand...

Thats a good idea,there around $25-30 dollars and could save you a lot of head aches.

 

P

proxses

Founding Member

Dec 12, 2000

620

0

0

Dayton, Oh

Apr 11, 2005

#7

• Apr 11, 2005

• #7

Ok, thanks guys!