What type sealant?
Thread Starter
Melting Slicks
Joined: Oct 2013
Posts: 2,569
Likes: 126
From: San Diego California
What type sealant?
I'm installing a rebuilt carburetor. A new thick paper-type gasket came with the Q-jet.
My question is; what type of sealant should be used on the gasket?
Thanks in advance.
Steve
My question is; what type of sealant should be used on the gasket?
Thanks in advance.
Steve
Drifting
Joined: Feb 2005
Posts: 1,879
Likes: 38
From: Los Gatos CA
Carb base gasket goes on dry. The bigger question is which manifold do you have? If it is a smiley face (groove under QJ front terminating in small round exhaust ports). If so, you need a 3 gasket sandwich. Do a search for details...
Thread Starter
Melting Slicks
Joined: Oct 2013
Posts: 2,569
Likes: 126
From: San Diego California
Dry? Really? It IS a "sandwich" type of gasket. I'm just worried about vacume leaks.
Drifting
Joined: Mar 2011
Posts: 1,886
Likes: 9
Yup. Dry. No goop required.
If you insist on some sort of goop, use only an anti-seize compound. Not necessary or recommended. But if it will make you happy...........
It's your car.
Bolt torque for a Qjet is very low. Use a screwdriver type nut driver and hand tighten only. Or you will crush the front of the carb.
If you insist on some sort of goop, use only an anti-seize compound. Not necessary or recommended. But if it will make you happy...........
It's your car.
Bolt torque for a Qjet is very low. Use a screwdriver type nut driver and hand tighten only. Or you will crush the front of the carb.
Le Mans Master
Joined: Mar 2008
Posts: 5,948
Likes: 72
From: Oxford MA-----You just lost the game!!!!
If you look at a Q-jet, you'll see that the back of the carb is held on by the carb base, but in the front, you've got these two long bolts that go all the way through the carb. More than one Q-jet has met an untimely end from having those two front bolts over-tightened. Easy does it!
Most folks will tell you that carb gaskets don't need any sealant or dressing, they just go on dry. I'm not going to say they are wrong, either. But I'm one of those guys who likes a little insurance when it comes to gaskets of almost any sort, and I say a light spray of Permatex Copper Spray-A-Gasket on both sides of the gasket isn't going to hurt anything, and won't make a mess if you do need to remove the carb someday.
Scott
Most folks will tell you that carb gaskets don't need any sealant or dressing, they just go on dry. I'm not going to say they are wrong, either. But I'm one of those guys who likes a little insurance when it comes to gaskets of almost any sort, and I say a light spray of Permatex Copper Spray-A-Gasket on both sides of the gasket isn't going to hurt anything, and won't make a mess if you do need to remove the carb someday.
Scott
Drifting
Joined: Feb 2005
Posts: 1,879
Likes: 38
From: Los Gatos CA
Please do a shot with the gasket off.
This to see if you have the heat cross-over, aka smiley-face manifold.
The sandwich is 3 gaskets.
You have a single thick gasket which is probably correct.
Regardless, you do not need sealant.
http://forums.corvetteforum.com/c3-t...d-problem.html
This to see if you have the heat cross-over, aka smiley-face manifold.
The sandwich is 3 gaskets.
You have a single thick gasket which is probably correct.
Regardless, you do not need sealant.
http://forums.corvetteforum.com/c3-t...d-problem.html
Last edited by Jeff_Keryk; Mar 23, 2014 at 12:01 AM.
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Thread Starter
Melting Slicks
Joined: Oct 2013
Posts: 2,569
Likes: 126
From: San Diego California
Excellent Advice!
Thanks men, for all the input.
Intake # 340281 , Date Code H16 73
The "T" stamped on it is for Truck maybe, for it did come off a C10 4-bolt Main engine.
A bit fuzzy, but this rather thick gasket came with the rebuilt carb.
OK. It's going together dry. I trust you guys.