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Leaky Carb gasket

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Leaky Carb gasket

Posted: 11/10/05 8:00amMessage 1 of 9
l
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Suffolk, VA - USA
Joined: 7/26/2005
Posts: 59
Vette(s): 1972 Convertible, A/C, with matching numbers. Sunflower yellow.
My carb to intake gasket is saturated with fuel and it leaks on the outside of the intake.  I'm going to replace it but I was wondering what might cause this to occur. I don't think I over torqued the bolts.
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Leaky Carb gasket

Posted: 11/10/05 11:17amMessage 2 of 9
P
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Virginia City, NV - USA
Joined: 1/19/2005
Posts: 314
Vette(s): 1979 Coupe, white in color

I am guessing you have a Qjet, since you don't state it. If my old and feeble mind can remember, it seems that some Qjets suffered from a porosity problem right in the center between the primarys and secondaries. I haven't had a Qjet on anything for years, but that does seem to come to mind and they did cause your symptom.

Dave

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Leaky Carb gasket

Posted: 11/10/05 4:53pmMessage 3 of 9
l
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Suffolk, VA - USA
Joined: 7/26/2005
Posts: 59
Vette(s): 1972 Convertible, A/C, with matching numbers. Sunflower yellow.

Yes it is a Q-jet..... That Su.Ks! is there any way to stop it from leaking????

ladyvette7238666.7049884259
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Leaky Carb gasket

Posted: 11/10/05 5:01pmMessage 4 of 9
d
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KERNERSVILLE, NC - USA
Joined: 1/13/2004
Posts: 1355
Vette(s): 1968 L-71 convertible

Q jets can be rebuilt, I'm pretty sure Ken posted an article on here a while back on the "How To's"

When a Q-jet is working properly, it's a great carb. I'm assuming you'd like to keep your car stock.

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Leaky Carb gasket

Posted: 11/10/05 6:54pmMessage 5 of 9
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Duncanville, TX - USA
Joined: 11/8/2003
Posts: 22716
Vette(s): #1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas
[QUOTE=ladyvette72]

Yes it is a Q-jet..... That Su.Ks! is there any way to stop it from leaking????

[/QUOTE]

Sure there is.........drain the fuel out, and don't drive it!
If it's only leaking from the base gasket, just replace it(the gasket). Over time, the gasket absorbs fuel, and eventually it will seep out. Quadrapukes are not known for the quality of the baseplate, and they do warp fairly easily. I'd say replace the base gasket, and use one with the plastic "inserts" around the bolt holes. This way, it won't warp the baseplate any more than it already is. Adams' Apple38666.8565046296

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Leaky Carb gasket

Posted: 11/10/05 8:28pmMessage 6 of 9
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CUYAHOGA FALLS, OH - USA
Joined: 12/2/2003
Posts: 6424
Vette(s): 1975 C3 Red, T-Tops, Black Interior. All I need is time and money! Getting there!

There are soft plugs on the bottom of the bowl area that have a strong tendency to leak after some time.  The bottom plate of the carb can be removed and these plugs sealed with a decent epoxy such as JB Weld.

Look at VetteProjects.com under Ken's projects, and you will find the Q-Jet rebuild article I made, complete with pictures.  One of them show you the soft plugs.

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Leaky Carb gasket

Posted: 11/18/05 11:45amMessage 7 of 9
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Virginia City, NV - USA
Joined: 1/19/2005
Posts: 314
Vette(s): 1979 Coupe, white in color

Thanks Ken, I knew I wasn't loosing my mind. I know I'm old but didn't think Alzhimers was settin in quite yet.

Dave

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Leaky Carb gasket

Posted: 11/18/05 4:26pmMessage 8 of 9
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CUYAHOGA FALLS, OH - USA
Joined: 12/2/2003
Posts: 6424
Vette(s): 1975 C3 Red, T-Tops, Black Interior. All I need is time and money! Getting there!
David, they say there are two things that go as we get older.  One is our hearing, and I can't remember the other.
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Leaky Carb gasket

Posted: 11/18/05 5:01pmMessage 9 of 9
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KERNERSVILLE, NC - USA
Joined: 1/13/2004
Posts: 1355
Vette(s): 1968 L-71 convertible
Maybe between us all , we'll make it. I heard one of those symptoms was memory, but I really couldn't hear the guy tell me what the other thing was.
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