Bent push rods - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 3 (permalink) Old 05-16-2010, 01:17 AM Thread Starter
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Bent push rods

Hello Everyone

I recently had a LB7 engine given to me, the truck had apparently up and quit going through an intersection. It was believed that the camshaft had broke.
I am in the process of getting the engine stripped down to see if it will be worth rebuilding and then installing in something.
I have the heads off now and have 1 bent pushrod on cyl. 2,4 and 7 (not sure whether intake or exhaust). All 4 valves on cyl. 2 have contacted the piston, 2 valves on cyl. 4 and 7 have contacted.
The cam does not seem to be broken, but I don't have it out yet, anyone have any thoughts on what has occured.
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post #2 of 3 (permalink) Old 05-16-2010, 01:29 AM
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???? not sure was it hot roded? maybe it had a tune to eliminate the rev limiter and a guy took it way past or mabe down shifted and over reved it
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post #3 of 3 (permalink) Old 05-16-2010, 01:50 AM Thread Starter
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Thanks for the reply, I was thinking along those lines, float the valves and they tap dance on the pistons.
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