C1 & C2 Corvettes General C1 Corvette & C2 Corvette Discussion, Technical Info, Performance Upgrades, Project Builds, Restorations

stalling problem

Thread Tools
 
Search this Thread
 
Old Jun 16, 2009 | 10:41 AM
  #1  
64tux's Avatar
64tux
Thread Starter
Burning Brakes
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2005
Posts: 849
Likes: 8
From: MANCHESTER IOWA
Default stalling problem

i've got a 64 vette, 365 with 2818-1 carb, petty much stock with the stalling at stop signs problem. i've gone back and read treads with the same problem. most say its a problem with the float level. checked and gas is right up to the top of the holes. another said maybe the coil. i put in a new coil. another says leak bettween carb. and manafold, so a put a thicker gasket between them. my problem is stillthere. it does not stall until i've been driving for an hour on a warm day. after it stalls at stop sign it will start right back up, everytime, but will not idle. i can let it sit for 5 min. and start, and then it will idle. i've seen many treads on this, but still have not found the right fix. the car runs great other than the no idle thing. HELP!!!!!!!!
Reply
Old Jun 16, 2009 | 10:51 AM
  #2  
5thvet's Avatar
5thvet
Le Mans Master
10 Year Member
 
Joined: Apr 2006
Posts: 5,347
Likes: 36
From: San Clemente CA
Default

Is the choke hooked up? Have you tried adjusting the idle up after the engine warms up?
Reply
Old Jun 16, 2009 | 11:38 AM
  #3  
64tux's Avatar
64tux
Thread Starter
Burning Brakes
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2005
Posts: 849
Likes: 8
From: MANCHESTER IOWA
Default

Originally Posted by 5thvet
Is the choke hooked up? Have you tried adjusting the idle up after the engine warms up?
I'VE GOT HOOKER HEADERS ON HER SO THE choke is not hooked up. i didn't cap it off on the carb. i've got the idle at 800-1000 now. i warmed it up and set it at 7-800 and it works it way up to 1000 later. should i cap off the hole where the choke use to go to the manifold? or maybe ajust the choke so its off all together???
Reply
Old Jun 16, 2009 | 11:54 AM
  #4  
Kensmith's Avatar
Kensmith
Le Mans Master
Supporting Lifetime
 
Joined: Mar 2005
Posts: 7,631
Likes: 11
From: Rocklin California
Default

Originally Posted by 64tux
i've got a 64 vette, 365 with 2818-1 carb, petty much stock with the stalling at stop signs problem. i've gone back and read treads with the same problem. most say its a problem with the float level. checked and gas is right up to the top of the holes. another said maybe the coil. i put in a new coil. another says leak bettween carb. and manafold, so a put a thicker gasket between them. my problem is stillthere. it does not stall until i've been driving for an hour on a warm day. after it stalls at stop sign it will start right back up, everytime, but will not idle. i can let it sit for 5 min. and start, and then it will idle. i've seen many treads on this, but still have not found the right fix. the car runs great other than the no idle thing. HELP!!!!!!!!
I had this exact problem with my 2818-1 carb. It would idle for half a minute and then die. Never got around to fixing it as I bought a 383 stroker motor and new Holley 770 street avenger. Now you have to get the motor up to full temp or it will idle a little fast. Has an electric choke. Good luck with finding out the reason for stall at idle.
Reply
Old Jun 16, 2009 | 11:57 AM
  #5  
64tux's Avatar
64tux
Thread Starter
Burning Brakes
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2005
Posts: 849
Likes: 8
From: MANCHESTER IOWA
Default

Originally Posted by Kensmith
I had this exact problem with my 2818-1 carb. It would idle for half a minute and then die. Never got around to fixing it as I bought a 383 stroker motor and new Holley 770 street avenger. Now you have to get the motor up to full temp or it will idle a little fast. Has an electric choke. Good luck with finding out the reason for stall at idle.
maybe that what i need to do, put the carb. on the shelf and get a new one?
Reply
Old Jun 16, 2009 | 12:19 PM
  #6  
5thvet's Avatar
5thvet
Le Mans Master
10 Year Member
 
Joined: Apr 2006
Posts: 5,347
Likes: 36
From: San Clemente CA
Default

Originally Posted by 64tux
I'VE GOT HOOKER HEADERS ON HER SO THE choke is not hooked up. i didn't cap it off on the carb. i've got the idle at 800-1000 now. i warmed it up and set it at 7-800 and it works it way up to 1000 later. should i cap off the hole where the choke use to go to the manifold? or maybe ajust the choke so its off all together???
I's try capping it off on the carb. I don't think the hole in the manifold will make any difference but I guess it wouldn't hurt.
Reply
Old Jun 16, 2009 | 12:24 PM
  #7  
toms silver 60's Avatar
toms silver 60
Melting Slicks
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2004
Posts: 2,730
Likes: 92
From: Lakeland FL
Default Try another brand of gasoline

Go for a premium brand like Sunoco or Amoco. Gas may be boiling on you. Had heard Hess gave problems.
Also make sure your vacuum advance is working. Install a vacuum gauge by console and see what it does as idle rpm varies. If vacuum drops below a certain point, vacuum timing will retard and rpm will drop further.
Reply
Old Jun 16, 2009 | 12:44 PM
  #8  
64tux's Avatar
64tux
Thread Starter
Burning Brakes
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2005
Posts: 849
Likes: 8
From: MANCHESTER IOWA
Default

Originally Posted by 5thvet
I's try capping it off on the carb. I don't think the hole in the manifold will make any difference but I guess it wouldn't hurt.
i'll cap it off and see!! thanks
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-1

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-2

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-3

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-4

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-5

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-6

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer
story-7

10 Revolutionary 'Corvette Firsts' Most People Don't Know

 Joe Kucinski
story-8

5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

 Michael S. Palmer
story-9

2027 Corvette vs The World: Every C8 vs Its Closest Competitor

 Joe Kucinski
Old Jun 16, 2009 | 12:47 PM
  #9  
64tux's Avatar
64tux
Thread Starter
Burning Brakes
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2005
Posts: 849
Likes: 8
From: MANCHESTER IOWA
Default

Originally Posted by toms silver 60
Go for a premium brand like Sunoco or Amoco. Gas may be boiling on you. Had heard Hess gave problems.
Also make sure your vacuum advance is working. Install a vacuum gauge by console and see what it does as idle rpm varies. If vacuum drops below a certain point, vacuum timing will retard and rpm will drop further.
use either IBP OR PHILP 66 . will take a look a vacuum. thanks!!!
Reply
Old Jun 16, 2009 | 12:58 PM
  #10  
Dave64's Avatar
Dave64
Drifting
All Eyes On Me
Photogenic
Photoriffic
 
Joined: Jul 2005
Posts: 1,751
Likes: 700
From: Avondale Arizona
2024 Corvette of the Year Finalist - Modified
2023 C2 of the Year Winner - Modified
2022 C2 of the Year Finalist - Unmodified
2021 C8 of the Year Finalist - Unmodified
2019 C2 of Year Finalist (appearance mods)
St. Jude Donor '19-'20-'21
Default

Originally Posted by 64tux
checked and gas is right up to the top of the holes.
You might try re-adjusting the floats, as the fuel in the sight holes should be right at the bottom of the sight holes with the engine warmed-up and idling. Good luck.

Dave
Reply
Old Jun 16, 2009 | 01:40 PM
  #11  
64tux's Avatar
64tux
Thread Starter
Burning Brakes
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2005
Posts: 849
Likes: 8
From: MANCHESTER IOWA
Default

Originally Posted by Dave64
You might try re-adjusting the floats, as the fuel in the sight holes should be right at the bottom of the sight holes with the engine warmed-up and idling. Good luck.

Dave
i'll warm it up good and then check the float levels. thanks Dave
Reply
Old Jun 16, 2009 | 02:12 PM
  #12  
Donald #31176's Avatar
Donald #31176
Melting Slicks
All Eyes On Me
 
Joined: Jul 2004
Posts: 2,864
Likes: 195
From: Maryland
Default

One other item to check is the proper VAC for the distributor. A 365 HP engine uses a cam of high overlap which produces a rather low vacuum.
You ll want a VAC that pulls full advance at low vacuum like a VC 1810 stamped B28.
Reply
Old Jun 16, 2009 | 06:21 PM
  #13  
64tux's Avatar
64tux
Thread Starter
Burning Brakes
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2005
Posts: 849
Likes: 8
From: MANCHESTER IOWA
Default

Originally Posted by Donald #31176
One other item to check is the proper VAC for the distributor. A 365 HP engine uses a cam of high overlap which produces a rather low vacuum.
You ll want a VAC that pulls full advance at low vacuum like a VC 1810 stamped B28.
thanks, i'll check it out!!!
Reply
Old Jun 16, 2009 | 06:44 PM
  #14  
Brumbach's Avatar
Brumbach
Burning Brakes
15 Year Member
 
Joined: Jan 2007
Posts: 960
Likes: 25
From: Middlesboro KY
Default

I had the same symptom with my holley. Turned out to be air-fuel mix. I didn’t have a vacuum gauge so I followed instructions provided by another forum member (landshark 454)

“First, warm up engine. Then lightly close both air mixture screws on each side of carb, and open both 2 turns. Fire the engine and turn them in until engine slows down slightly, then turn the other way until engine slows down slightly, then turn them back the other way again until your best highest idle. Try turning both in small increments as you go to keep both sides as close to each other as you can.”

If you’ve never done this before, it sounds a little weird but my car has never run better since I made the adjustment using the above procedure. Good luck. Bill
Reply
Old Jun 16, 2009 | 06:49 PM
  #15  
Dan Hampton's Avatar
Dan Hampton
Le Mans Master
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2008
Posts: 5,662
Likes: 2,344
From: Lake Minnetonka, Mn
2018 C1 of Year Finalist
Default

If percolation is the potential problem you might want to run a phenolic spacer between the carburetor and the intake manifold just to be safe.
Reply
Old Jun 17, 2009 | 10:08 AM
  #16  
64tux's Avatar
64tux
Thread Starter
Burning Brakes
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2005
Posts: 849
Likes: 8
From: MANCHESTER IOWA
Default

Originally Posted by Brumbach
I had the same symptom with my holley. Turned out to be air-fuel mix. I didn’t have a vacuum gauge so I followed instructions provided by another forum member (landshark 454)

“First, warm up engine. Then lightly close both air mixture screws on each side of carb, and open both 2 turns. Fire the engine and turn them in until engine slows down slightly, then turn the other way until engine slows down slightly, then turn them back the other way again until your best highest idle. Try turning both in small increments as you go to keep both sides as close to each other as you can.”

If you’ve never done this before, it sounds a little weird but my car has never run better since I made the adjustment using the above procedure. Good luck. Bill
thanks!! i hope it works!
Reply
Old Jun 17, 2009 | 10:10 AM
  #17  
64tux's Avatar
64tux
Thread Starter
Burning Brakes
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2005
Posts: 849
Likes: 8
From: MANCHESTER IOWA
Default

Originally Posted by Dan Hampton
If percolation is the potential problem you might want to run a phenolic spacer between the carburetor and the intake manifold just to be safe.
i put a thicker gasket between . what is a phenolic spacer?
Reply

Get notified of new replies

To stalling problem

Old Jun 17, 2009 | 10:51 AM
  #18  
bonehead2's Avatar
bonehead2
Racer
10 Year Member
 
Joined: Jun 2004
Posts: 452
Likes: 0
From: Southern Md
Default

How close are the Hooker Headers to your fuel line up front?.Boiling gas will do it every time. Or Possible your needle and seat (float adj)are sticking. Is there any internal dripping from the carb when running. It should not be dripping gas when you idle the engine. Idle circuit may have a little trash in it. I just recently last week had a 69 in the shop with the dripping problem, flooding out at idle and Sun had a 66 BB that just would not stay running but started fine. The floats adjustment was the problem on these.
Clean and put a kit in your carb and you should take care of it.Holley's can be very touchy when not driven all the time.

Phenolic spacer is akin to bakelite, a non metallic spacer to limit heat transfer.

Last edited by bonehead2; Jun 17, 2009 at 10:58 AM.
Reply
Old Jun 17, 2009 | 03:01 PM
  #19  
64tux's Avatar
64tux
Thread Starter
Burning Brakes
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2005
Posts: 849
Likes: 8
From: MANCHESTER IOWA
Default

Originally Posted by bonehead2
How close are the Hooker Headers to your fuel line up front?.Boiling gas will do it every time. Or Possible your needle and seat (float adj)are sticking. Is there any internal dripping from the carb when running. It should not be dripping gas when you idle the engine. Idle circuit may have a little trash in it. I just recently last week had a 69 in the shop with the dripping problem, flooding out at idle and Sun had a 66 BB that just would not stay running but started fine. The floats adjustment was the problem on these.
Clean and put a kit in your carb and you should take care of it.Holley's can be very touchy when not driven all the time.

Phenolic spacer is akin to bakelite, a non metallic spacer to limit heat transfer.
i'll check it all out. see what i come up with. thanks for the information. with all the info. you guys give, something gotta work!!!! no dripping gas. where's a good place to get a phenolic spacer????

Last edited by 64tux; Jun 17, 2009 at 08:34 PM. Reason: add comment
Reply
Old Jul 1, 2009 | 02:33 PM
  #20  
64tux's Avatar
64tux
Thread Starter
Burning Brakes
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Sep 2005
Posts: 849
Likes: 8
From: MANCHESTER IOWA
Default

Originally Posted by Dave64
You might try re-adjusting the floats, as the fuel in the sight holes should be right at the bottom of the sight holes with the engine warmed-up and idling. Good luck.

Dave
gas is up to bottom of hole. i said top, sorry!! maybe i should try ajusting to the top of the hole. i've tried about everything else!!!
Reply




All times are GMT -4. The time now is 06:14 PM.

story-0
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-1
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-2
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-3
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-4
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-5
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-6
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-7
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-8
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE
story-9
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE