Thread: Broken studs/Push Rod--> From bad Gas?

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Here are the ones that had problems:

Cylindar 7
Exhaust - Split Rocker, Burnt end on Push Rod
This is one of the ones that had a 'solid' (won't push down in center) lifter
Intake - Slightly bent push rod
Cylindar 5
Intake - Broken Rocker Stud
Cylindar 3
Exhaust - Broken Rocker Stud
Intake - Very bent push rod

I'm in the process of putting the motor back together now. I'm very anxious to see oil flow when I fire it back up.

This is all puzzling. I feel quite confident that I had water in the gas and detonation. I saw white smoke out both exhausts...particularly when we pushed down on teh gas, as opposed to cruising. When I gased back up, the detonation quit, and I was left with a miss.

I drove ~ 400 miles like that, and within 20 miles of home is when the studs broke.

I find that I also have a second lifter that is 'solid'. But not sure which one it was. Already out of engine before I found that. Others some others are somewhat short on the push.

So, it seems evident that the lifters are the culprit to the breakage/bending of the components. What puzzles and concerns me is what is the cause of the lifters going bad, and is there any relation to the bad gas.

I may never know. Again, I am anxious to see if the engine oils when I get it back together.

By the way, I am replacing ALL lifters, so I will be disassembling the other bank. I'll see if any of those lifters seem messed up.

[edit 9/19]
I got the engine running yesterday afternoon. It seems to be oiling good.