Having fuel issues (To much fuel)
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Having fuel issues (To much fuel)
Hi, new to the forums... Just picked up my very FIRST Vette today, and was lucky enough to score an 82 Collectors Edition...
They had swapped motors so its got a nicely built 355 in it now, with a Edel 8867 600cfm carb on it... The issue is that as soon as you turn on the key, the pump primes the carb but never stops priming, it continues until you shut the key off... it instantly floods the motor and will not let it start.
It has an electronic fuel pump now.
They had swapped motors so its got a nicely built 355 in it now, with a Edel 8867 600cfm carb on it... The issue is that as soon as you turn on the key, the pump primes the carb but never stops priming, it continues until you shut the key off... it instantly floods the motor and will not let it start.
It has an electronic fuel pump now.
Burning Brakes
Joined: Oct 2001
Posts: 1,241
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From: Okinawa Okinawa
Sounds like a needle and seat is clogged and stuck open. Can you see fuel pouring into the carb when the car is running at idle?
I had this happen once and had to keep my foot on the gas while at idle to keep it running in order to drive it home.
I had this happen once and had to keep my foot on the gas while at idle to keep it running in order to drive it home.
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Well that's one of the problems, it wont start cause its getting almost instaflooded... I can see with the carb flap open the front 2 jets have a good stream being dropped right into the carb... not the spraying jets the ones in the center of the hole that drip downward.
Burning Brakes
Joined: Oct 2001
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From: Okinawa Okinawa
Sounds like the needle and seat are stuck open. May have to replace if you can't clean them out and get them to close.
Congrats on the car by the way.
There is a search function on the top of the forum. Go into Advanced search and you can find just about anything you can think of here. Tons of really smart guys on the forum that love to share their wisdom.
Congrats on the car by the way.
There is a search function on the top of the forum. Go into Advanced search and you can find just about anything you can think of here. Tons of really smart guys on the forum that love to share their wisdom.
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Sounds like the needle and seat are stuck open. May have to replace if you can't clean them out and get them to close.
Congrats on the car by the way.
There is a search function on the top of the forum. Go into Advanced search and you can find just about anything you can think of here. Tons of really smart guys on the forum that love to share their wisdom.
Congrats on the car by the way.
There is a search function on the top of the forum. Go into Advanced search and you can find just about anything you can think of here. Tons of really smart guys on the forum that love to share their wisdom.
Edit http://forums.corvetteforum.com/c3-t...e-explain.html heres that thread
Last edited by Shadowtigerz; Jun 6, 2013 at 07:14 PM.
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Melting Slicks
Joined: Apr 2001
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From: Lubbock Texas
I agree with the checking the fuel pressure. The electric pump may be overpowering the float and you may need a regulator to restrict the pressure to levels more suitable for the carb.
DC
DC
Pro
Joined: Apr 2013
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From: London Ontario
I'll bet on that being your issue. Either add in an in-line regulator, or, switch to a mechanical pump.
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Now onto a new subject.... I looked at the title earlier and it said 80 Chevrolet on it... not Corvette or 82 like I was told... I run the Vin thru the decoder and it comes up an 80 corvette... is there possibly another spot where the Vin could be... cause everything on this car says 82 and collectors edition... unless someone spent a whole hell of a lot of $ to make it an 82CE
Melting Slicks
Joined: Apr 2001
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From: Lubbock Texas
Sounds about right.
Now onto a new subject.... I looked at the title earlier and it said 80 Chevrolet on it... not Corvette or 82 like I was told... I run the Vin thru the decoder and it comes up an 80 corvette... is there possibly another spot where the Vin could be... cause everything on this car says 82 and collectors edition... unless someone spent a whole hell of a lot of $ to make it an 82CE
Now onto a new subject.... I looked at the title earlier and it said 80 Chevrolet on it... not Corvette or 82 like I was told... I run the Vin thru the decoder and it comes up an 80 corvette... is there possibly another spot where the Vin could be... cause everything on this car says 82 and collectors edition... unless someone spent a whole hell of a lot of $ to make it an 82CE
One of the historians will chime in and let us know but I'm not sure any of the C3's end up with the word "Corvette" on the title. At least none I've seen do, including my '73. It may depend on which state.
Does your rear hatch open? If not, it may be an '80 changed to look like a CE. If it does open, you may have a problem with the title.
DC
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One of the historians will chime in and let us know but I'm not sure any of the C3's end up with the word "Corvette" on the title. At least none I've seen do, including my '73. It may depend on which state.
Does your rear hatch open? If not, it may be an '80 changed to look like a CE. If it does open, you may have a problem with the title.
DC
Does your rear hatch open? If not, it may be an '80 changed to look like a CE. If it does open, you may have a problem with the title.
DC
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Drifting
Joined: Jul 2009
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From: Dallas-Fort Worth TX
If you have an 82, using the original OEM fuel pump you HAVE to have a regulator for the carb. If not it will over power that carb. You need to bring the fuel pressure down to around 5-7 psi.
Also a true CE will have a vin like this 1G1AY0786C51XXXXX
A regular 82 will have an 8 in place of the 0.
Also a true CE will have a vin like this 1G1AY0786C51XXXXX
A regular 82 will have an 8 in place of the 0.
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If you have an 82, using the original OEM fuel pump you HAVE to have a regulator for the carb. If not it will over power that carb. You need to bring the fuel pressure down to around 5-7 psi.
Also a true CE will have a vin like this 1G1AY0786C51XXXXX
A regular 82 will have an 8 in place of the 0.
Also a true CE will have a vin like this 1G1AY0786C51XXXXX
A regular 82 will have an 8 in place of the 0.
Heres a few pics
ill take some more of w.e you guys need.
I guess ill show a little engine **** as well.... built 355
Safety Car
Joined: Mar 2007
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From: Bridgewater nj
If you're using the stock in tank pump it will over power the carb float needle.
You have to get a regulator and set it for 5 psi and run a return line back to the tank!!!
The pump will burn out in a very short time without the return in place!
You could install a mechanical fuel pump but you'll need a pushrod and pump.
You have to get a regulator and set it for 5 psi and run a return line back to the tank!!!
The pump will burn out in a very short time without the return in place!
You could install a mechanical fuel pump but you'll need a pushrod and pump.
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If you're using the stock in tank pump it will over power the carb float needle.
You have to get a regulator and set it for 5 psi and run a return line back to the tank!!!
The pump will burn out in a very short time without the return in place!
You could install a mechanical fuel pump but you'll need a pushrod and pump.
You have to get a regulator and set it for 5 psi and run a return line back to the tank!!!
The pump will burn out in a very short time without the return in place!
You could install a mechanical fuel pump but you'll need a pushrod and pump.
Safety Car
Joined: Mar 2007
Posts: 3,652
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From: Bridgewater nj
The stock 82 vette's have a 1/4 return line running back to the tank already and there's a vent line going to the charcoal box in the drives side fender. Try to find the return line. Someone probably cut it back and you'll find the end on the frame rail. Plum your regulator using that return.
Safety Car
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From: Bridgewater nj
You may have a hard time finding a regulator to bring your pressure down from 15psi to 5psi but most regulators have a main spring you can shim or cut to get the pressure right 
If it was me, I would switch to the mechanic pump.
Oh, just throw a bigger headache you way.... Many 82 vette owners switch out their stock 15 psi pumps for the 85 vette's 45psi pump! You need to get a gauge or get the number off the pump to see what you have....?
If it was me, I would switch to the mechanic pump.
Oh, just throw a bigger headache you way.... Many 82 vette owners switch out their stock 15 psi pumps for the 85 vette's 45psi pump! You need to get a gauge or get the number off the pump to see what you have....?
Last edited by hugie82; Jun 7, 2013 at 04:09 PM.