Carb leak - cracked stand pipe?

Carb leak - cracked stand pipe?

Postby ajs350 » Sun Aug 28, 2011 12:07 pm

Just finnished overhauling my 79x carbs and put them on a leak test only to find #6 dripping away. Took the bowl off, filled it with fuel and with the drain screw tight it is dripping. How do I fix what seems like a leak past the brass stand pipe and the bowl casting. A layer of JB weld perhaps?
TIA Ross
User avatar
ajs350
ICOA Member
ICOA Member
 
Posts: 335
Images: 133
Joined: Wed Nov 17, 2010 3:19 pm
Location: Atlanta, GA USA

Re: Carb leak - cracked stand pipe?

Postby tevan » Sun Aug 28, 2011 12:28 pm

solder the standpipe it must be cracked. They are brass. Some guys have replaced them. they sell that size at hobby lobby.
User avatar
tevan
ICOA Member
ICOA Member
 
Posts: 207
Joined: Sun Apr 25, 2010 8:47 am
Location: Charleston, Illinois, USA

Re: Carb leak - cracked stand pipe?

Postby ajs350 » Sun Aug 28, 2011 3:25 pm

tevan
Thanks for the solution. I found the crack as you can see from the photo, soldered it up and no more leak! :D
Cheers
Ross
4750
User avatar
ajs350
ICOA Member
ICOA Member
 
Posts: 335
Images: 133
Joined: Wed Nov 17, 2010 3:19 pm
Location: Atlanta, GA USA

Re: Carb leak - cracked stand pipe?

Postby tevan » Sun Aug 28, 2011 6:31 pm

That looks just like the ones I have done. That tube is very thin. Glad you solved your mystery.
User avatar
tevan
ICOA Member
ICOA Member
 
Posts: 207
Joined: Sun Apr 25, 2010 8:47 am
Location: Charleston, Illinois, USA

Re: Carb leak - cracked stand pipe?

Postby Kool_Biker » Tue Sep 06, 2011 6:48 am

Excellent pic, depicts this common problem so well!
Aris
Aris Hadjiaslanis
ICOA # 6309
Athens, Greece
User avatar
Kool_Biker
ICOA Member
ICOA Member
 
Posts: 620
Images: 0
Joined: Sat Dec 18, 2010 6:46 pm
Location: Greece


Return to CARBS: Cleaning, Rebuilding, Swaps, Aftermarket, Tuning, Syncing, and More

Who is online

Users browsing this forum: No registered users and 0 guests