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Old 09-18-2016, 10:05 PM   #8
LongBox
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Join Date: Sep 2016
Location: Vancouver BC
Posts: 784
Re: Bent and Broken Push Rod 350 SBC

Quote:
Originally Posted by Mike C View Post
This. Running an engine on bad, varnished gas can cause valves to stick when it cools off. Then pushrod no longer is centered on rocker and it twists, bends or breaks.
I believe this is the cause of the problem. With the rocker covers off, and with a new pushrod in place, but not done up very tight, that valve does not move when the rocker moves. My mistake. It's going to get fixed properly, taking the head to a machine shop to make sure the valve stems/guides are all good, and we've gotta check those lifters and lobes, plus fetch that chunk of pushrod outa there.

I did put a container of injector cleaner that was on my shelf in the tank, but I guess that was not enough. I was too lazy to take the tank out of the truck and drain it out.
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Rick

-69 GMC 910 Long Box, 350
-98 Chev Silverado 1500, 350 Vortec 4L60e
-08 Mustang GT Convertible
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