AFR's are on and I have a push rod question ?
09-24-2005, 11:15 PM
#1
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AFR's are on and I have a push rod question ? I got the AFR 205's on and the car is running great, I drove it about 400+ miles in the past week.
The issue I'm having is when it gets to normal operating temp the valvetrain is loud.. It sounds like a sewing machine cold but I think its a little beyond that when its warmed up, really more so at say 1500 rpm.
I'm thinking maybe I need a 7.45" push rod in lou of the 1.40" I have now to compensate for the aluminum expanding.
My heads aren't milled.
Any thoughts ?
The issue I'm having is when it gets to normal operating temp the valvetrain is loud.. It sounds like a sewing machine cold but I think its a little beyond that when its warmed up, really more so at say 1500 rpm.
I'm thinking maybe I need a 7.45" push rod in lou of the 1.40" I have now to compensate for the aluminum expanding.
My heads aren't milled.
Any thoughts ?
09-25-2005, 02:34 AM
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well i know I did some shimming under the rockers to get it quiter. But w a big cam and stock rockers = sewing macine.
I did the wipe mark test and ended up with .060 worked best for centering. And helped a lil w noise.
You need fancy adjustable rockers to get them quieter.
I did the wipe mark test and ended up with .060 worked best for centering. And helped a lil w noise.
You need fancy adjustable rockers to get them quieter.
09-25-2005, 10:02 AM
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So you adjusted the rockers up ? I was thinking they were too far up as it is, hence the reason for thinking I needed a longer PR.
I guess I need to figure out how to measure this stuff cold and hot.
What did you use to shim the rockers up ?
I guess I need to figure out how to measure this stuff cold and hot.
What did you use to shim the rockers up ?
Last edited by RPO_Z06; 09-25-2005 at 10:52 AM.
09-25-2005, 06:52 PM
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I just bout a pack of comp rockre shims and a lil rtv silicon to hold em in place. Though if you havent done milling you should be running stock rods, but call some sponsors who build these combos
