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What could cause this?

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Old 10-10-2017, 10:32 PM
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yedister
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Default What could cause this?

Got a call from the guy working on the Vette. He has it on the dyno, he said that after a few pulls on the dyno that the valves are getting noisy. Sounds like that they loosen up. Is that normal? I have a Jesel Shaft Rocker setup. The shaft assembly was removed back in January to change to the bushed lifters, new length pushrods were needed, went from a 6.8 to 8.6 inch, rocker arm alignment was checked. The changed was performed by a mechanic that is a serious racer. It has no run time on the motor after he adjusted the lash and drove out of the shop.

Thanks for your assistance
Old 10-13-2017, 01:53 PM
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Kevova
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IDK if it was just put together. Wear in? Lock nuts not tight. I would run or drive 20-30 minutes see if tapping returns.
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Old 10-13-2017, 03:45 PM
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yedister
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Originally Posted by Kevova
IDK if it was just put together. Wear in? Lock nuts not tight. I would run or drive 20-30 minutes see if tapping returns.
Did that, did a few more pulls on the dyno, no problems. Will drive it in about 2 weeks.
Old 10-25-2017, 02:48 AM
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Yarosh2210
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i think so http://moviesonline.ac/watch/qd7DaBvK-qi-season-15.html

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