carb spacer
Thread Starter
Pro
Joined: Sep 2007
Posts: 699
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From: cape cod MA
carb spacer
Is anyone using one ? I have a 65 vert 327/365 hp and when i park it all i can smell is gas , no leaks anywhere , but i suspect the gas is boiling from the heat ? any advice ? thanks
Safety Car
Joined: Mar 2009
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From: Corpus Christi, TX
May seem like a strange question, but what kind of carb is on it? Holleys are prone to leaks from the fuel bowl(s) because they have gaskets below fuel level and the threads for the bowl screws are prone to stripping. Had to Heli Coil all 8 bowl screw openings in my old 3310 to solve a bad gas smell and hard starting after sitting only 2 or 3 days. The fuel bowls were emptying out. There were stains on the intake manifold but no visible liquid gasoline.
Thread Starter
Pro
Joined: Sep 2007
Posts: 699
Likes: 53
From: cape cod MA
May seem like a strange question, but what kind of carb is on it? Holleys are prone to leaks from the fuel bowl(s) because they have gaskets below fuel level and the threads for the bowl screws are prone to stripping. Had to Heli Coil all 8 bowl screw openings in my old 3310 to solve a bad gas smell and hard starting after sitting only 2 or 3 days. The fuel bowls were emptying out. There were stains on the intake manifold but no visible liquid gasoline.
Race Director
Joined: May 2006
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did you check the float levels?
do you see gas dripping into the intake after you shut off the engine?
did you check the float bowl screws for looseness?
have you tried a aluminum insulator plate under the carb?
do you see gas dripping into the intake after you shut off the engine?
did you check the float bowl screws for looseness?
have you tried a aluminum insulator plate under the carb?
Team Owner
Joined: Mar 2003
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From: Greenville, Indiana
Might be time to fix what's wrong with your Holley. They didn't do that when new.
The worst thing you could do to an OEM Holley on these engines is to let the carburetor dry out for an extended period, let the gasket dry and shrink and then have a ham fisted owner crank down the bowl screws and warp the metering body. Never saw the screws stripped but whoever would tighten the screws enough to do that should own tools.
New gaskets that don't shrink, setting the floats correctly and making sure the metering blocks are flat should take care of the problems like this in most cases.
The worst thing you could do to an OEM Holley on these engines is to let the carburetor dry out for an extended period, let the gasket dry and shrink and then have a ham fisted owner crank down the bowl screws and warp the metering body. Never saw the screws stripped but whoever would tighten the screws enough to do that should own tools.
New gaskets that don't shrink, setting the floats correctly and making sure the metering blocks are flat should take care of the problems like this in most cases.
Burning Brakes
Joined: Dec 2008
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From: PURCELLVILLE VA
C1 of Year Finalist (performance mods) 2019
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I’ve never have had a hard/hot starting problem.
I must be doing something right, it gets pretty hot here in VA. Good tune and good adjustments seems to do the trick for me.
I’m not trying to stir the pot but, I’ve never had to use spacers or special gaskets on any of my cars.
I must be doing something right, it gets pretty hot here in VA. Good tune and good adjustments seems to do the trick for me. I’m not trying to stir the pot but, I’ve never had to use spacers or special gaskets on any of my cars.
Last edited by DAN70; Jun 15, 2018 at 03:09 PM.
Team Owner
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From: Sitting in his Nowhere land Hanover Pa
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I’ve never have had a hard/hot starting problem. I must be doing something right, it gets pretty hot here in VA. Good tune and good adjustments seems to do the trick for me.
I’m not trying to stir the pot but, I’ve never had to use spacers or special gaskets on any of my cars.
I must be doing something right, it gets pretty hot here in VA. Good tune and good adjustments seems to do the trick for me. I’m not trying to stir the pot but, I’ve never had to use spacers or special gaskets on any of my cars.
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Pro
Joined: Sep 2007
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From: Marathon Florida Breezy Point Minnesota
You really shouldn't need one for a stock engined car. I have a restored '67 L79, and have nevr had a gas smell problem. When I first finished it, I had a problem with gas stains on the float bowls and manifold. After reading and doing some research, I purchased a "Surface Plate" (a 2" thick piece of 12" X 12" granite with a perfectly smooth polished surface). I used 320 "Wet or Dry"paper on it and made sure the mounting surfaces were perfectly flat. After that, no more stains. I rebuild a few carburetors now and then, and I give every flat surface I can a pass on the surface plate. Most are OK, but occasionally I find a nick or warp. Then it's time for more work to eliminate the imperfections or source a better component..
The guys above that mention float bowls warping and over-tightened screws are on the right track. Holley's are prone to this type of problems. Also, the tip to use the new better gaskets is right on.
The guys above that mention float bowls warping and over-tightened screws are on the right track. Holley's are prone to this type of problems. Also, the tip to use the new better gaskets is right on.
Last edited by tubman; Jun 15, 2018 at 05:38 PM.
Drifting
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From: Avondale Arizona
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I installed a 1/2" wood spacer under mine on my '64 L76 and the peculating went away. On the Edelbrocks: I went thru both the 1405 and 1406 and nothing but problems with them running extremely rich, even after working a local engine builder/tuner. They seemed to be very, very sensitive to fuel pressure. My stock pump was putting out about 7 lbs pressure and it was too much. Fix your Holley.
Last edited by Dave64; Jun 15, 2018 at 09:09 PM.
Heel & Toe
Joined: Jun 2013
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From: Detroit Michigan
easy fuel perculation fix
I had a constant problem with vapor lock on my 57. Wrapped the section of fuel line nearest the exhaust manifold with heat shield material. 2mm thick aluminum bonded to 3/16 inch non-woven polyester. Problem solved.
Team Owner
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Army
I'd rather take a beating than put one of those blingy, one-size-fita-all, Edelbrocks on a classic car.....I like many of their products but in the case of carburetors replacing original equipment its usually an owners' admission that a problem is beyond his ability to fix it.
Thread Starter
Pro
Joined: Sep 2007
Posts: 699
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From: cape cod MA
I'd rather take a beating than put one of those blingy, one-size-fita-all, Edelbrocks on a classic car.....I like many of their products but in the case of carburetors replacing original equipment its usually an owners' admission that a problem is beyond his ability to fix it.