Tri-Power Carb Mounting Gaskets

[Jack C.]

A few years ago I ordered replacement carb gaskets from Paragon. I just noticed that they had one gasket labeled "Center Carb, This side up". Am I missing something that the Center Carb gasket was different from the two ends?

[Clem Z.]

Re: Tri-Power Carb Mounting Gaskets

A few years ago I ordered replacement carb gaskets from Paragon. I just noticed that they had one gasket labeled "Center Carb, This side up". Am I missing something that the Center Carb gasket was different from the two ends?

the gasket has to cover the external vacuum passage under the carb and if installed up side down you will have a vacuum leak

[Clem Z.]

Re: Tri-Power Carb Mounting Gaskets

here is a picture of the problem

[Jack C.]

Re: Tri-Power Carb Mounting Gaskets

Thanks Clem.

[Wayne M.]

Re: Tri-Power Carb Mounting Gaskets

here is a picture of the problem

Hey Clem -- I click on your thumbnail and nothing expands.

Jack and others --- (starting ?) at beginning of 1968 production, [per Aug '67 Corvette Service News] the plant used thinner tripower carb-to-manifold gaskets, replacing the thicker material used in the 1967 MY L68, L71 and L89's, and which caused sticky secondary carb throttle shafts due to over-torquing the carb nuts and unevenly compressing the thick carb gasket.

These new gaskets were identified by following lettering: "this side up END carburetors" and "this side up CENTER carburetors". I don't know what the '67 and '68 TIM&JG's say about this, but a sharp eye should be able to tell which thickness is used (or should be present for TFP) on the '67's.

[Jack C.]

Re: Tri-Power Carb Mounting Gaskets

Thanks Wayne. It looks like I have the correct ones. I always thought the 3 were identical and was very aware on how they mount on each carb mount on the intake. I have been trying to diagnose a "vapor lock" like problem for quite sometime and was wondering if the carb gaskets I used prevoiusly might be giving me this problem. Lord knows I have looked at everything else. The car would start and run fine that after a longer run would die out at idle. I would have to wait 15 or 20 minutes and it would then start. It would crank fine but not fire up.

[Clem Z.]

Re: Tri-Power Carb Mounting Gaskets

Hey Clem -- I click on your thumbnail and nothing expands.

Jack and others --- (starting ?) at beginning of 1968 production, [per Aug '67 Corvette Service News] the plant used thinner tripower carb-to-manifold gaskets, replacing the thicker material used in the 1967 MY L68, L71 and L89's, and which caused sticky secondary carb throttle shafts due to over-torquing the carb nuts and unevenly compressing the thick carb gasket.

These new gaskets were identified by following lettering: "this side up END carburetors" and "this side up CENTER carburetors". I don't know what the '67 and '68 TIM&JG's say about this, but a sharp eye should be able to tell which thickness is used (or should be present for TFP) on the '67's.

must be on your end check your computer settings. go to "view" and go down to "zoom" and select 200%

[Terry M.]

Re: Tri-Power Carb Mounting Gaskets

must be on your end check your computer settings. go to "view" and go down to "zoom" and select 200%

I doubt it is just Wayne's computer. Mine has been doing the same thing, and yet the post about the 7-pound radiator cap is OK -- I can expand that photo just fine. In the last few days something has changed with the type of photo posted or this site. I will check from work tomorrow and see if the same thing happens there.

[Joel F.]

Re: Tri-Power Carb Mounting Gaskets

you're not alone Terry and others ... I can't blow up this photo either but can on some of the other links. I wonder if a setting was changed accidently by the forum admin?

[John H.]

Re: Tri-Power Carb Mounting Gaskets

That photo won't expand for me either (Windows 7, IE9).

[Terry M.]

Re: Tri-Power Carb Mounting Gaskets

I am on Windows XP and Firefox 11.0

[Clem Z.]

Re: Tri-Power Carb Mounting Gaskets

i tried it on a different computer here and going to page and zoom 200% it get larger

[John H.]

Re: Tri-Power Carb Mounting Gaskets

i tried it on a different computer here and going to page and zoom 200% it get larger

Clem -

I can zoom it also (Ctrl-scroll wheel), but it doesn't enlarge when you click on it. If you right-click on it and then click Properties, it's only 2520K, 100x72.