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kiwighia68
Samba Member
Joined: October 20, 2013
Posts: 2874
Location: Auckland, New Zealand
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 Posted: Thu Sep 20, 2018 10:06 pm Post subject: Gas (fuel) leaking (between carbs and manifold?) |
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My Ghia (1641 with small Webers) has been leaking gas (petrol) on the left side as the first 3 photos show. Now, after a 600 kilometre road trip, the right hand side has also started leaking. As per photo 4. It seems to me that the problem is the gasket between the carb and the manifold. Or does it look like something else (worse)?
Is the remedy as simple as replacing the gaskets? Ever the optimist, yours truly.
Photo 4:
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Festina lente - hasten slowly
1968 Ghia named Emiko
Resto completed Dec 2015 |
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fes
Samba Member
Joined: January 26, 2011
Posts: 999
Location: Prince Edward Island
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| Posted: Fri Sep 21, 2018 2:43 am Post subject: Re: Gas (fuel) leaking (between carbs and manifold?) |
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Kind of looks to me like the throttle arm shaft is leaking around the bushing?
Maybe try and spray some carb cleaner or starting fluid around the area and see if there might be an air leak
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'68 Campmobile-Pedro
'15 Golf-Stella Blau
'56 Oval-The Turd (for now) |
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c21darrel
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Joined: January 22, 2009
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Location: San Dimas
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kiwighia68
Samba Member
Joined: October 20, 2013
Posts: 2874
Location: Auckland, New Zealand
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| Posted: Fri Sep 21, 2018 3:34 pm Post subject: Re: Gas (fuel) leaking (between carbs and manifold?) |
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Thank you, Fes and Darrel. Is the repair then as simple as replacing the gaskets?
I have a set of Kadrons as well - it says Brosal and Solex on the bodies - that I could install instead. (Solex H40/44 EIS - I was told they were Kadrons and the air cleaners are Kadrons)
As Darrel has said before: The resto of these cars is never complete.
_________________
Festina lente - hasten slowly
1968 Ghia named Emiko
Resto completed Dec 2015 |
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c21darrel
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Joined: January 22, 2009
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Location: San Dimas
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fes
Samba Member
Joined: January 26, 2011
Posts: 999
Location: Prince Edward Island
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| Posted: Sat Sep 22, 2018 9:31 am Post subject: Re: Gas (fuel) leaking (between carbs and manifold?) |
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There are a few threads on the Performance forums here on the Samba about Throttle shaft re-bushing..just type in "bushing leak" in the search..are these Weber ICTs you have? Unfortunately,the Samba member who specialized in this is long out of the business,but I'm sure there's others...In your neck of the woods?I doubt it
Before you do anything drastic,check the shafts for excessive lateral play,and check for vacuum leaks while running.
If it is indeed the throttle shaft(s) bushing and washers that are leaking,this could be also from too much fuel pressure,sticking needle valves..usually they suck air when they are worn,leaking fuel is something more underlying..what fuel pump are you running?
Could be wrong
Good luck
-Matt
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'68 Campmobile-Pedro
'15 Golf-Stella Blau
'56 Oval-The Turd (for now) |
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kiwighia68
Samba Member
Joined: October 20, 2013
Posts: 2874
Location: Auckland, New Zealand
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| Posted: Sun Sep 23, 2018 11:23 am Post subject: Re: Gas (fuel) leaking (between carbs and manifold?) |
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Thanks Matt. I am going to have to do some checking. (My ignorance is currently matched by my lack of enthusiasm to tackle this problem.) I'l lstart by checking precisely what Webers I have on the car and then what fuel pump I have. I have a vague recollection of the fuel pump being replaced and absolutely no memory of the leaking prior to that.
So, by a process of elimination, I think the fuel pump may be the problem. (Too high pressure for the carbs?)
Chris M
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Festina lente - hasten slowly
1968 Ghia named Emiko
Resto completed Dec 2015 |
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fes
Samba Member
Joined: January 26, 2011
Posts: 999
Location: Prince Edward Island
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| Posted: Sun Sep 23, 2018 3:47 pm Post subject: Re: Gas (fuel) leaking (between carbs and manifold?) |
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Fuel pressure is a good place to start..you definitely don't want more than 3psi..I have installed "best that money can buy" aftermarket fuel pumps that were through the roof..one was almost 5psi and another was off the scale (my tester only goes to 5)
You can rig up an inline tester pretty easily.. just be sure to get a gauge that has a low PSI reading..the ones that go higher aren't accurate enough for the 1.5+pressure that most stock VW carbs like
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'15 Golf-Stella Blau
'56 Oval-The Turd (for now) |
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