Re: Bent push rods - specs needed
When I bought my GMC it had not been running for many, many years. After I started tinkering with it, I pulled the valve covers to see what was up. (The PO believed the exhaust valves were fried from non-leaded gas) I found 3 exhaust pushrods just laying loose, not touching the rockers.
Before you pull the heads, I would pull the rocker assemblies and plugs. With the rockers removed all the valve should be closed, squirt some oil in the cylinders and do a compression test.
You would still have to do these steps, but maybe it will give you an idea how bad it is.
I think the valves stick on these engines, especially if they sit for long periods. I try to use the truck to run an errand at least once a week.
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