Can oil or break cleaner ruin the header gasket and cause engine sputtering? - Hot Rod Forum : Hotrodders Bulletin Board
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Old 05-23-2020, 06:14 PM
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Can oil or break cleaner ruin the header gasket and cause engine sputtering?

Hello, so my issue started when I tried adjusting the valve latch the easy way with the engine running. The car was running great yesterday after I adjusted the valve latch except lots of oil leaked into the header gasket due to crappy valve cover gaskets. Today I replaced the valve cover gaskets and tried cleaning the oil off the header gasket with break cleaner. I took the car for a a drive and about 2 miles into my drive I felt the engine sputtering, so I reduced my speed and drove back hope without issue except when I pulled into my driveway I felt the engine sputter again and some unusual noise coming from the header/valve cover area. Could I have ruined the header gasket with the break cleaner or maybe got it on a spark plug wire boot? BTW these are the aluminized type of header gaskets.



Thanks for you input guys

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Old 05-23-2020, 06:18 PM
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I suspect more like one or more of your valve adjustments slipped...
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Old 05-23-2020, 06:29 PM
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I suspect more like one or more of your valve adjustments slipped...

These are hydraulic with a 5/8 nut and the allen set screw. I turned them about a quarter turn past zero latch. Do you mean they could have came lose? Is so those that mean I have to replace it? Thanks
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Old 05-23-2020, 06:37 PM
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Likely one wasn't tightened quite enough... but we won't know for sure without closer investigation...
Make sure no spark plug wires slipped off or were damaged first, of course... run the engine in the dark and look for sparks... be careful of any fan blades...
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Old 05-25-2020, 12:56 PM
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How did you tighten them? I found out quickly that you can't adjust them, then just tighten the set screw. It will not hold. Adjust it, back it off 1/8th turn, tighten the set screw, then turn the nut and set screw the 1/8 turn clockwise together at the same time. You can check your work by trying to loosen the set screw. If you can, it's probably not tight enough.
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Old 05-25-2020, 10:12 PM
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How did you tighten them? I found out quickly that you can't adjust them, then just tighten the set screw. It will not hold. Adjust it, back it off 1/8th turn, tighten the set screw, then turn the nut and set screw the 1/8 turn clockwise together at the same time. You can check your work by trying to loosen the set screw. If you can, it's probably not tight enough.

I loosen all the set screws in one bank, then loosen each nut till they rattle (one at a time) then tighten till the rattle stopped and then tighten 1/4 turn pass zero latch. With that said my issue was simply a plug wire that popped out.



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Old 05-26-2020, 12:32 AM
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Quote:
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With that said my issue was simply a plug wire that popped out. Thanks
A common problem... especially #8 that isn't noticed or gets forgotten...

Glad it was an easy one... thanks for letting us know...
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