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05-29-2011, 09:12 PM
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#1 |
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Registered User
Join Date: May 2011
Location: Dallas Texas
Posts: 12
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Slight detonation still after overheat?
1969 with a 350 overheated today i heard the detonation before i saw the guage. After i let it cool and filled it up with coolant and changed the exhaust gasket that i think was the culprit it still detonates a little under load. any suggestions. No detonation before overheat.
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05-29-2011, 09:37 PM
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#2 |
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laying low
 
Join Date: Mar 2001
Location: Searcy, Ark. USA
Posts: 13,513
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Re: Slight detonation still after overheat?
Find the reason for the overheat and correct it. Check timing. A blown exhaust gasket isn't the cause of overheating. Bad thermostat will.
__________________
Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross |
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05-29-2011, 09:40 PM
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#3 |
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~Rest In Peace~
Join Date: May 2005
Location: CALIFORNIA NOR CAL
Posts: 9,707
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Re: Slight detonation still after overheat?
check the inside of your distributor for condensation from the overheating ,could be cross firing from the water/
__________________
is it fast ? it has a lighting bolt donut? B___H please, I can remove 90% of your so called "beauty" with a kleenex |
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05-29-2011, 10:43 PM
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#4 |
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Registered User
Join Date: May 2011
Location: Dallas Texas
Posts: 12
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Re: Slight detonation still after overheat?
the exhaust leak was not a small one. loading and unloading from the trailer high centered and pushed the header around a little. the gasket fixed the overheating but slight detonation ONLY under load. wouldn't cross firing happen at any rpm load or no load?
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