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Re: Burnt cups....again...
[Re: NitroFixx]
#985367
05/09/11 03:31 PM
05/09/11 03:31 PM
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Joined: Nov 2004
Posts: 2,825
Sk. Canada
RemCharger
master
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master
Joined: Nov 2004
Posts: 2,825
Sk. Canada
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Quote:
The length of the pushrod is directly related to where the oil hole is in the rocker arm. If it is Chrysler oiling, the exact measurement is 9/32nds of an inch of adjuster showing......including the ball, +/-.050. You can tell if the rockers are drilled for Chrysler oiling if the oil hole in the rocker arm is in the bottom thread of the adjuster screw hole. Then you set the adjuster to the correct length out of the bottom of the rocker and measure for pushrod length.
If the oil hole in the rocker is lower than the bottom thread in the adjuster screw, you have to screw the adjuster screw down to line up with the hole in the rocker arm and shorten the pushrod accordingly
You can groove the rocker, groove the shaft, groove the cam, all to let more oil up there but IF the HOLE IN THE ROCKER ARM DOES NOT LINE UP WITH THE HOLE IN THE SHAFT IT WILL NOT WORK. You can force enough oil up to the top to oil the adjusters from splash, but it's still not the right way to do it.
This is kind of what I was getting at. You can put all kinds of parts in there , seal 'er up and see if it works.
Or
Take the v/c's off (build splash shields etc.) and run it and watch if the oil is shooting DIRECTLY at the cup. This will visually confirm,,,, whether oil is getting where it needs to go. 
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Re: Burnt cups....again...
[Re: DemonDust]
#985369
05/10/11 04:57 PM
05/10/11 04:57 PM
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Joined: Oct 2003
Posts: 3,698
NE Oklahoma
Von
OP
master
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OP
master
Joined: Oct 2003
Posts: 3,698
NE Oklahoma
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Quote:
I've seen this at my buddies shop many times. Guys mix and match stuff. Never thinking if the ball has the right radius in relation to the cup. It looks good by eye and if you are building your engines by "looks good" or "seems to fit"... You should hang it up.. 
Put a radius gauge on the cup and on pushrod end, I'm willing to bet you have two different radius that don't work together..
I guess I dont have to hang it up just yet...
I took 2 different brand of adjusters and the pushrods (Manton) to a local shop. All 3 have the same radius...so, the radius(s) arent/werent the problem.
Last edited by Von; 05/10/11 05:01 PM.
72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72.
Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.
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Re: Burnt cups....again...
[Re: NitroFixx]
#985370
05/10/11 05:00 PM
05/10/11 05:00 PM
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Joined: Oct 2003
Posts: 3,698
NE Oklahoma
Von
OP
master
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OP
master
Joined: Oct 2003
Posts: 3,698
NE Oklahoma
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Quote:
You can tell if the rockers are drilled for Chrysler oiling if the oil hole in the rocker arm is in the bottom thread of the adjuster screw hole.
So, what rockers are drilled for "Chrysler" oiling?
I have a set of factory ductile adjustable rockers. The oiling hole in them is above the adjuster screw hole.
I wonder if some factory rockers didnt come with "Chrysler" oiling, exactly what rockers do? 
72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72.
Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.
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Re: Burnt cups....again...
[Re: Von]
#985371
05/10/11 10:47 PM
05/10/11 10:47 PM
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Joined: Jan 2003
Posts: 14,496
So. Burlington, Vt.
fast68plymouth
I Live Here
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I Live Here
Joined: Jan 2003
Posts: 14,496
So. Burlington, Vt.
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didnt you tell me that the stock iron rockers worked fine and didnt have issues with burning up the pushrods?
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
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Re: Burnt cups....again...
[Re: fast68plymouth]
#985372
05/11/11 12:14 AM
05/11/11 12:14 AM
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Joined: Oct 2003
Posts: 3,698
NE Oklahoma
Von
OP
master
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OP
master
Joined: Oct 2003
Posts: 3,698
NE Oklahoma
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Quote:
didnt you tell me that the stock iron rockers worked fine and didnt have issues with burning up the pushrods?
Well, they seemed to work fine...I didnt run them very long as the ratios are only 1.39ish...
But, if the HS rockers dont do the trick, the ductile rockers are goin to RAS and be tricked out....
72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72.
Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.
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Re: Burnt cups....again...
[Re: Von]
#985373
05/11/11 12:20 AM
05/11/11 12:20 AM
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Joined: Oct 2003
Posts: 3,698
NE Oklahoma
Von
OP
master
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OP
master
Joined: Oct 2003
Posts: 3,698
NE Oklahoma
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Got the HS rockers on this PM. FWIW, they put considerably more oil to the adjusters than any other of the aftermarket rockers Ive had. They are the only rockers I have/had that when being primed with a drill, the oil actually hits the cup of the pushrod. 
72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72.
Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.
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