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#1 |
Registered User
Join Date: Feb 2000
Location: Brandon, SD, USA
Posts: 1,292
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fast idle problem 78 chevy 350 quadrajet
hey i neeeeed some help. i just put this 350 in my granpas s10 and i cant get it tuned right. i put a rebuilt quadrajet on it and it has hei. the vacuum lines have one of those thermo deals on the thermostat housing. i routed my hoses around that. so i have one hose to the transmission, one to the cruise, one to the booster, and one to the distrbuter. i timed it the best i could so it is at really close to 12 before tdc at about 800 rpm. i cant keep the engine idling at 800 though. i have to keep revving it otherwise it will die. to get it to idle good it is at about 1200 rpm. what do i adjust? do i need the vacuum thing? should i time it different? is there a step by step tuning instruction thing somewhere i could read? THANKS FOR THE HELP, Ben
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Brandon, SD 69 GMC 1/2 ton 2wd wide long bed with wood 3 on the tree 350 engine 4 bolt main rv cam AIM = Alphray04 |
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#2 |
Registered User
Join Date: Dec 2004
Posts: 112
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have you tried adjusting the floats on the carb? that is what i had to do.
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#3 |
Registered User
Join Date: Feb 2000
Location: Brandon, SD, USA
Posts: 1,292
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would that make the rpms surge? should i have to adjust a carb right out of the box? what do i adjust it to? thanks, any other ideas before i take the carb apart? thanks a lot, Ben
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Brandon, SD 69 GMC 1/2 ton 2wd wide long bed with wood 3 on the tree 350 engine 4 bolt main rv cam AIM = Alphray04 |
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#4 |
Registered User
Join Date: Apr 2004
Location: N.E. MO
Posts: 1,749
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Is the 350 stock? Or if not what kind/size cam is in it?
Also check close for vacuum leaks.
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72 C20 4X4 454 4 speed 89 Trans Am (was) 305 TPI 700r4 93 C1500 2wd Extended cab 350 700r4 98 Sonoma (TPI outa the Trans Am) 03 Yamaha 660 Raptor 03/04 660 Raptor 07 700 Raptor 85 Honda Odyssey |
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#5 |
Registered User
Join Date: Feb 2000
Location: Brandon, SD, USA
Posts: 1,292
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yeah its stock, im going to go mess with it a bit more, see i neeeeeed to get it running before tomorrow or saturday at the latest to bring it back to my grandpa. thanks, Ben
__________________
Brandon, SD 69 GMC 1/2 ton 2wd wide long bed with wood 3 on the tree 350 engine 4 bolt main rv cam AIM = Alphray04 |
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