Wtf?

70chevrolet

70chevrolet

New Member
#1
#1
can someone educate me as to wtf happened to this carb. what is that big hole on the bottome left?
It appears as if there is a passage that was milled into the carb and somehow broke open.
I filled it with carb cleaner and appears as if the passage is not functional and doesnt leak into the carb.
Can I block this passage off with jb weld for better sealing.
The carb works great it is just hard to seal.
Thanks

 
useng1

useng1

#3
#3
My 1978 Lausen Power Products manual shows this hole in all the illustrations in the "4-stroke, float feed ,adjustable" section, but does not point it out or say what it is. No illustration in any of the other carb sections shows this hole. I have some Tec manuals on a CD. I'll keep looking. I think you can JB Weld it and be fine.
 
useng1

useng1

#4
#4
Just looked at my other manuals. Same as the first one. I think there may have been a welch plug in the hole, but not a clue what it is for. Might be for some California use where crankcase was vented back into intake.
 
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