HELP--'77 Bonneville 400 Valve Lifter Problem
I have a '77 Bonneville Coupe with a 400 cu. in. Pontiac Motor. The car has only 65,000 miles on it and the body is mostly rust-free--a really sharp black/black/black Broughm.
The problem is that the engine runs on seven cylinders and is very rough running. Today, I took the rocker covers off to see what the problem was--plugs/wires,etc. were all OK. The woman's son who I bought the car from must have over-revved the engine as I found the #4 intake rocker arm crosswise off the valve and pushrod. Nothing is broken, so I loosened the rocker arm and put it in place. There was still lash after tightening the rocker nut, so I removed it and looked through the pushrod hole at the lifter. You guessed it, the rocker seat is out of the lifter. The retainer must have broken when the valves were floated by over-revving.
Question is this: Will a pushrod seat fit through the pushrod hole so I can avoid removing the intake. I would glue the seat to the pushrod and carefully insert it into the lifter from the top. The retainer is only needed when valve lifters pump up from over-revving.
Has anyone tried this??
Last edited by Dick Boneske; 10-29-2005 at 12:24 PM.
Reason: Attention needed for help.
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