quadrajet gasket - Team Camaro Tech
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post #1 of 9 (permalink) Old Jan 7th, 01, 11:37 AM Thread Starter
 
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I am having a problem with the carburator to intake manifold gasket burning between the primary throttle valves and the exhaust gas port in front of the throttle valves. Any ideas of how to correct this problem on a 1969 camaro with a 350 motor.

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post #2 of 9 (permalink) Old Jan 7th, 01, 11:59 AM
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The base of your carb may be warped. If they're tightened down too tight they can warp. If you keep blowing out in the same spot, that would be my guess.

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post #3 of 9 (permalink) Old Jan 7th, 01, 03:53 PM
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You need the thin metal gasket on the base of the manifold then the paper gasket and carb. The exhaust is burning the paper up I bet.

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post #4 of 9 (permalink) Old Jan 7th, 01, 04:12 PM
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You need the stainless steel gasket (someone probably threw it away in the past) that goes on the manifold first, then the regular gasket, then the carb.

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post #5 of 9 (permalink) Old Jan 7th, 01, 04:39 PM
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I forgot about that. Wasn't it early 70's they quit using them because of intake redesign?
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post #6 of 9 (permalink) Old Jan 7th, 01, 05:13 PM Thread Starter
 
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thanks for the information. the stainless steel gasket has 'top' stamped on it and a fiber gasket rivited to it. i placed the fiber side down and the stainless side to the base of the carburator. i will get another gasket and place the stainless side to the intake. thanks again
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post #7 of 9 (permalink) Old Jan 8th, 01, 02:01 AM
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I have always wondered about the placement of the stainless steel gasket, seems it is a little thin to obtain a good seal without a vaccumn leak. Is there any other way to install carb on an intake with the channel in it for the crossover. Mine is a 69 396 with Q-Jet

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post #8 of 9 (permalink) Old Jan 8th, 01, 05:39 AM Thread Starter
 
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I have two more quadrajet intakes, one for a big block and one for a small block, that do not have the gas passage in them. Apparently it was determined by the factory that it was not needed. Does anyone know what its purpose was? I did'nt know there was a difference in the intakes until i checked them this morning after pipeman's post. I may drill and tap the holes and install plugs since the later model intakes don't have the gas passage.
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post #9 of 9 (permalink) Old Jan 8th, 01, 11:44 AM
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Back in the 50s carbs had cast iron bases. It was probably a lot simpler to cast a slot in the base and run the exhaust gases through there to get heat for cold weather. I suppose later on this cross flow wasn't really needed with the thermac air cleaner and such.
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