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'68 Rambler American Leaky Carb help?? |
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Qblue92 
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Joined: Mar/25/2012 Location: Arlington Tx Status: Offline Points: 41 |
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 Topic: '68 Rambler American Leaky Carb help??Posted: May/03/2012 at 5:26pm |
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My carb leaks a few drops when the shaft at the rear is turned. It seems to be coming out where my finger is indicating here.....Any hints on what would cause this??
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6768rogues
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Joined: Jul/03/2007 Location: United States Status: Offline Points: 2500 |
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Posted: May/03/2012 at 8:24pm |
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Is it leaking around the throttle shaft? There is a bushing in there that can wear out. I have had so called rebuilt carburetors from major remanufacturers weep there and I had to send them back.
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Why Ramblers? Chicks dig 'em. Whatever it is, I can take it apart.
Located near Rochester, NY |
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Qblue92
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Joined: Mar/25/2012 Location: Arlington Tx Status: Offline Points: 41 |
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Posted: May/03/2012 at 8:43pm |
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That's where it seems to be leaking. What does the bushing look like?? I have a cruddy ancient rebuild kit and I'm not sure it its included.
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FuzzFace2
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Joined: Jul/05/2007 Location: Connecticut Status: Offline Points: 6381 |
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Posted: May/03/2012 at 10:08pm |
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All the kits I have bought never had shaft bushings. Maybe the older carb kits had them but I am going back to the early 80's Dave ----
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75 GremlinX v8
76 GremlinX i6 (sons) 70 Javelin SST 390/4sp (360/5sp now) 70 Javelin 1/4 Drag car 360/auto |
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6768rogues
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Posted: May/04/2012 at 1:25pm |
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I know that when some places rebuild the carbs they put in a bushing. Maybe there is no bushing originally but if worn when rebuilt they could be drilled and bushed. I never took and original apart to check but assumed that installing a new bushing meant replacing an existing bushing. Perhaps that is not the case.
Anyway, if it is leaking it needs a bushing. Edited by 6768rogues - May/04/2012 at 1:27pm |
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Why Ramblers? Chicks dig 'em. Whatever it is, I can take it apart.
Located near Rochester, NY |
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tomj
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Joined: Jan/27/2010 Location: los angeles Status: Offline Points: 591 |
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Posted: May/06/2012 at 2:38am |
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Just re-read your original post: if it leaks a bit only when you turn
the throttle shaft, and the engine is NOT running, that is likely NORMAL
for a carb with some shaft wear -- when you turn the shaft, it operates
the accelerator pump, which dumps liquid gas down the throat; with no
air flow likely it dribbles down the side of the bore, onto the shaft,
and out the worm bushing.
Patient: "Doctor, it hurts when I move my arm like this..." Doctor: "Don't move your arm like that." Minor shaft wear on an old carb is typical and harmless. The idle mixture screw will compensate for it; if the screw adjustment is close to normal don't worry about it. |
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1963 American 440 hardtop
195.6 OHV, modded T-96 Twin Stick, 3.78 axle |
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