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Carb Leak Help - Angel VW Club

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 Post subject: Carb Leak Help
PostPosted: Sat Mar 21, 2015 8:50 pm 
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Joined: Sat Sep 20, 2008 10:41 am
Posts: 19
Location: Chester Le Street
Hi,

Alright.. lets see how good you guys are cos this has me stumped.

I have a 28 pict carb that sprung a bit of a leak this morning. I have included a picture for reference...

The leak is coming from the throttle linkage though (see black arrow).
The leak, isn't related to the throttle opening, but the choke as when i open and close the chock stepper, fuel squirts out with a bit pressure (see red arrow).

This is an old carb and i am going to be rebuilding it in the next week or so but i was wondering what to be looking for.

I have narrowed it down to the following:
1. Bad float
2. Blocked needle valve/jet
3. Faulty fuel cut off valve.
4. Worn throttle linkage bushings
5. Too much fuel pressure.

In your opinion, which one would be most likely. It did have a replacement fuel pump however this is the short fuel pushrod type and with another carb is absolutely fine.

Any suggestions would be helpful.


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 Post subject: Re: Carb Leak Help
PostPosted: Tue Mar 24, 2015 1:25 pm 
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Joined: Sun Sep 29, 2013 7:12 pm
Posts: 24
Location: Throckley
Worn throttle spindle bushes...

But fuel normally drips out, opposed to squirting... :shock:

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 Post subject: Re: Carb Leak Help
PostPosted: Tue Mar 24, 2015 1:36 pm 
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Joined: Sat Sep 20, 2008 10:41 am
Posts: 19
Location: Chester Le Street
The drips are what drew my attention to it. But id definitely squirts out. haha

Either way, i have a brush replacement kit on its way and a tin of carb cleaner and new gaskets.

Unless you know of anyone who has a cheap 31 pict 4 carb lying about....

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 Post subject: Re: Carb Leak Help
PostPosted: Tue Mar 24, 2015 1:46 pm 
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Joined: Sun Sep 29, 2013 7:12 pm
Posts: 24
Location: Throckley
I can check, but I think mine are all basket cases!!

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