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Sunday, September 28th, 2008 AT 6:00 PM
78SHORTY
- MEMBER
- 1978 GMC
- V8
- 2WD
- AUTOMATIC
- 80,000 MILES
Yesterday I sprayed the engine with degreaser so I could change the valve cover gaskets. I wasnt able to do it then so I left it untill the next day. When I started it up there was a horrible knock I think was in the top end. I tried starting it twice since then and it still does it. I only let the motor run for about 5-7seconds andshut it down. Could the degreaser ate through the old valve gaskets and it made it way down on to the valves or something?
