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Leak from phenolic bowl- Carter T.Q. #1655282
08/05/14 02:29 PM
08/05/14 02:29 PM
Joined: Mar 2008
Posts: 571
Western NC
68Bullit Offline OP
mopar
68Bullit  Offline OP
mopar

Joined: Mar 2008
Posts: 571
Western NC
what causes the leak from the upper part of the phenolic body/bowl? I've tried to use the carb a few times and it won't go beyond a mile or so, before I pop the hood and see gas coming from the top bowl area.

Car has mild 360. What to check? And how to fix?



Thanks

Re: Leak from phenolic bowl- Carter T.Q. [Re: 68Bullit] #1655283
08/05/14 03:46 PM
08/05/14 03:46 PM
Joined: Feb 2005
Posts: 174
Creedmoor, NC, USA
74Charger Offline
member
74Charger  Offline
member

Joined: Feb 2005
Posts: 174
Creedmoor, NC, USA
Phenolic body is likely warped a bit. Use some "Seal-All" sealer between gasket and bowl. Let it set-up for a couple of days before introducing fuel. This has worked more than once.

Re: Leak from phenolic bowl- Carter T.Q. [Re: 74Charger] #1655284
08/05/14 04:19 PM
08/05/14 04:19 PM
Joined: Jan 2003
Posts: 16,376
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dogdays Offline
I Live Here
dogdays  Offline
I Live Here
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Joined: Jan 2003
Posts: 16,376
Float set too high?

R.

Re: Leak from phenolic bowl- Carter T.Q. [Re: dogdays] #1655285
08/05/14 04:46 PM
08/05/14 04:46 PM
Joined: Mar 2008
Posts: 571
Western NC
68Bullit Offline OP
mopar
68Bullit  Offline OP
mopar

Joined: Mar 2008
Posts: 571
Western NC
Quote:

Float set too high?

R.




I think this could be it, as the carb is really clean and has new parts. I just haven't used it really since I got it rebuilt a few years back. So with this, I'm hoping it isn't warped.

Instructions on checking float height?


Thanks

Re: Leak from phenolic bowl- Carter T.Q. [Re: 68Bullit] #1655286
08/05/14 08:14 PM
08/05/14 08:14 PM
Joined: Jan 2003
Posts: 1,757
Windsor, ON, Canada
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Diplomat360 Offline
top fuel
Diplomat360  Offline
top fuel
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Joined: Jan 2003
Posts: 1,757
Windsor, ON, Canada
So just to be clear here, you are saying you have fuel dripping out from the main/primary venturi boosters? As in, it's trickling out regardless of how much the throttle is open?

If YES, then yeah, floats being set too low may be the cause. Here is what you do:

1) take carb apart
2) flip the top part upside down, leave gasket in place
3) measure the distance between the gasket and the top of the float, that is usually 29/32 or 1"
4) adjust the float arm as needed, do NOT force against the inlet needle while adjusting
5) re-assemble, pay attention to the main well seals (see below)

When you re-assemble the darn thing make sure you have the round or square (cross section) seals in the main booster well, so that the spot in the phenolic body where the main primary jets go into at the bottom you should place these 2 seals (1 on each side). These seals make sure the primary circuit is only getting fuel metered by the metering rods/main jet, as opposed to any fuel being present in the phenolic body.

Take a peek at this diagram, hopefully it helps a bit to put things into perspective.








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