new to this bacyard mech need help
new to this bacyard mech need help
got an 84 trans am from gradpa with built 355 it made it home ok but now is running bad shooting gas out the carb and i here bad vauume by dist but dont see any thing and carb will idle little high after accelleration then drop down oh yeah car was sitting 8 years where do istart plugs?dist?carb? or allthe above
Supreme Member




Joined: Jan 2012
Posts: 2,027
Likes: 33
From: Washington State
Car: 1983 BB 1995 Z28 Camaro's
Engine: 454-350
Transmission: TH350-4l60e
Axle/Gears: 373 posi-Stock
Re: new to this bacyard mech need help
Maybe I would start by replacing the vacuum hoses, it woun't run right with vacuum leaks.
Supreme Member




Joined: Jan 2012
Posts: 2,027
Likes: 33
From: Washington State
Car: 1983 BB 1995 Z28 Camaro's
Engine: 454-350
Transmission: TH350-4l60e
Axle/Gears: 373 posi-Stock
Re: new to this bacyard mech need help
maybe a stuck pcv valve causing the vacuum leak.
Supreme Member




Joined: Jan 2012
Posts: 2,027
Likes: 33
From: Washington State
Car: 1983 BB 1995 Z28 Camaro's
Engine: 454-350
Transmission: TH350-4l60e
Axle/Gears: 373 posi-Stock
Re: new to this bacyard mech need help
OK were ever it is sucking air is what I would fix first if it was my car.
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Joined: Jul 2009
Posts: 2,328
Likes: 10
From: Kitchener, ON
Car: 1988 GTA
Engine: LB9
Transmission: T5
Axle/Gears: 3.45
Re: new to this bacyard mech need help
Gas shooting out of carb might be sunk float or jammed needle valave. If the car was sitting for 8 years, best course of action is to give it a good once over before you run it. Fuel has gone bad for certain.
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Re: new to this bacyard mech need help
thanks started going over it did the brakes all calipers where siezed replaced also just found out buddy whio dont no what hes doing messed with adjusting the carb edelbrock 1407 i think he tighted the 2 front screws in to hard before adjusting is this possible like i said iam new to this stuff but will learn when you once over what do you mean also tore off allexaust am running open headers right now
Joined: Mar 2000
Posts: 43,187
Likes: 45
From: Littleton, CO USA
Car: 82 Berlinetta/57 Bel Air
Engine: L92/LQ4 (both w/4" stroke)
Transmission: 4L80E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
Knowing what type of carb it has is helpful.
Sounds like it has been sitting more than running. It isn't unusual for carbs and fuel pumps to gum up in that situation. No external adjustments will help that situation. Disassembling the carb, soaking the hard parts in a carb cleaning solvent (the type that comes in a paint can, not the spray stuff), and installing a rebuild kit are all that can help it. New gas and filters are a must. Not unlikely the fuel pump should be replaced. Some '84's have an in-tank electric fuel pump as well.
However, if the carb idle mixture screws have been overtightened, there is a good possibility the carb has been ruined (at least the throttle body). Perfect opportunity to replace that poser carb with a real one.
Sounds like it has been sitting more than running. It isn't unusual for carbs and fuel pumps to gum up in that situation. No external adjustments will help that situation. Disassembling the carb, soaking the hard parts in a carb cleaning solvent (the type that comes in a paint can, not the spray stuff), and installing a rebuild kit are all that can help it. New gas and filters are a must. Not unlikely the fuel pump should be replaced. Some '84's have an in-tank electric fuel pump as well.
However, if the carb idle mixture screws have been overtightened, there is a good possibility the carb has been ruined (at least the throttle body). Perfect opportunity to replace that poser carb with a real one.
Re: new to this bacyard mech need help
It is a edelbrock 1407 no choke should I just buy new one thanks again replaced sparkplugs today little better but almost positive is Carb hard to get it to idle and sticking and stuff idle staying high for a second then coming down then wanting to stall
Re: new to this bacyard mech need help
thanks replaced plugs today helped but carb got to go wants to stay up after accelleration sticking hard to idle wanting to stall should i just get new one it is edelbrock 1407 750 no choke and should i get same one or not
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