305 won't stay running
08-09-2008, 12:36 PM
#1
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Car: 1987 Camaro Sports Coupe
Engine: 305 4bbl
Transmission: 700R4
Axle/Gears: 2.73
305 won't stay running
I have a 87 Camaro sports coupe with a 305. The only way I can get it to run is if I let it sit for a while. After 10-15 min it will run but only for like 1 min. then I have to wait another 10-15 minutes. What's the deal
08-10-2008, 12:46 AM
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Car: 1987 Camaro Sports Coupe
Engine: 305 4bbl
Transmission: 700R4
Axle/Gears: 2.73
Re: 305 won't stay running
It seems like it idles fine. But usually I have to crank it over for a minute. I mean sometimes it will start up right up but not usually
08-10-2008, 12:51 AM
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Car: 1992 Z28
Engine: 305 TPI
Transmission: 700r4
Axle/Gears: 10 bolt posi. G80
Re: 305 won't stay running
Have you checked your timing? Maybe something to do with the fuel...pump? Somebody smarter will chime in I'm sure.
08-10-2008, 12:56 AM
#7
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Car: 1987 Camaro Sports Coupe
Engine: 305 4bbl
Transmission: 700R4
Axle/Gears: 2.73
Re: 305 won't stay running
Firing order is good. May be the fuel pump. I'll probably replace it. Do you think it could be a vacuum leak?
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08-10-2008, 01:09 AM
#8
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Car: 1992 Z28
Engine: 305 TPI
Transmission: 700r4
Axle/Gears: 10 bolt posi. G80
Re: 305 won't stay running
I meant what is your timing set at? Also, I could be wrong, but if you had a vacuum leak, it wouldn't idle that great.
08-10-2008, 01:14 AM
#9
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Car: 1987 Camaro Sports Coupe
Engine: 305 4bbl
Transmission: 700R4
Axle/Gears: 2.73
Re: 305 won't stay running
Well it seems to be idleing fine. And I have no idea about the timing. But if the timing was wrong it wouldn't run at all. Right?
09-02-2008, 06:52 PM
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Car: 1986 Iroc-Z
Engine: 305 TPI
Transmission: T-5
Axle/Gears: 3.73 posi
Re: 305 won't stay running
The fuel pump is hydrolic... I havent had one go bad before. You probably have a vac leak for your carb needs rebuilt... How does the fuel filter look? have you checked the PCV valve??
09-09-2008, 12:29 PM
#11
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Car: 1987 Camaro Sports Coupe
Engine: 305 4bbl
Transmission: 700R4
Axle/Gears: 2.73
Re: 305 won't stay running
Ok. I figured out what the problem was. A clogged fuel line. 
but now I have a new problem. It doesn't want to run it gear. It will idle in gear fine but as soon as I give it gas it dies. I think the carburetor is bad. What do you think
Fuel pump is new by the way
but now I have a new problem. It doesn't want to run it gear. It will idle in gear fine but as soon as I give it gas it dies. I think the carburetor is bad. What do you think
Fuel pump is new by the way
09-09-2008, 10:21 PM
#12
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Car: 1986 Iroc-Z
Engine: 305 TPI
Transmission: T-5
Axle/Gears: 3.73 posi
Re: 305 won't stay running
it might need a rebuild... I have a few CCQJET's laying around. One good one and one that needs a rebuild.
09-12-2008, 01:46 PM
#13
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Car: 1987 Camaro Sports Coupe
Engine: 305 4bbl
Transmission: 700R4
Axle/Gears: 2.73
Re: 305 won't stay running
But I did rebuild it. It ran fine for a while, then I had this problem. I guess it's one of those one problem after another situations.
09-12-2008, 02:04 PM
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Car: 82 Berlinetta/57 Bel Air
Engine: LS1/LQ4
Transmission: 4L60E/4L80E
Axle/Gears: 12B-3.73/9"-3.89
The 1987 models had an in-tank electric pump as well as the mechanical (not "hydraulic") pump mounted on the engine. It's pretty common for the in-tank to fail, and the mechanical not being able to suck through the failed electric pump enough to keep the engine supplied.
That doesn't fit all of your symptoms, but it does some. How confident are you in the carb rebuild job you did?
That doesn't fit all of your symptoms, but it does some. How confident are you in the carb rebuild job you did?
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