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01-04-2003, 03:26 PM
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#1 |
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Registered User
Join Date: Sep 2002
Location: Plymouth, IN
Posts: 133
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engine misfire question
i have a 69 step w/ a 327...HEI timing set to 8 deg. btdc...bosch +4 plugs...and a Holley carb.
My question is...under hard accel...usually around 3500 - 4000 rpm...there is a backfire coming from the motor...hard to tell if its in the exhaust or exactly where....what would be the most likely cause for this...thanks.Ken
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94 K1500 SWB w/ 4" body and suspension lift |
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01-04-2003, 05:57 PM
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#2 |
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Registered User
Join Date: Sep 2002
Location: Plymouth, IN
Posts: 133
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anyone ??
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94 K1500 SWB w/ 4" body and suspension lift |
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01-04-2003, 07:21 PM
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#3 |
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Senior Member
 
Join Date: Apr 2000
Location: madison indiana
Posts: 3,836
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maybe the your cam has a lobe worn round had one do that to me once,backfired throu carb thou.
good luck
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jamie72 72 BB cheyenne -- Restoration getting started.. member #807 http://www.myspace.com/whitetailobsession www.antlertalk.com |
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01-04-2003, 08:20 PM
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#4 |
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Registered User
Join Date: Dec 1999
Location: New York
Posts: 288
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If it only happens under acceleration, I would say your carb's set too lean. Fuel starvation will cause a miss (not a backfire, though) under acceleration. Mine was missing under load and it was the fuel settings.
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RLTW 70C10 72K10 72K10 Cheyenne 72C10 Cheyenne Super |
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