My 750 Holley double pumper carb has developed a small leak after sitting on the shelf for the winter. It was on a running engine as of last October. Using an inspection mirror, it looks like the gas is leaking from the bottom of the float bowl or the small pump/diaphragm area on the bottom of the bowl. Are these likely places for a leak, or are there other, more common things I should look at.

I dont have much carb experience and I just want to know what I am getting into before I tear it apart.

Thanks in advance!

There's plenty of places a carb can leak. When was it last rebuilt?

I would dry off the carb, run the motor, then inspect it for more leaks. What was the trick with baking soda? Toss it on and see where it sticks? But I think that's only good with oil...

LOL baking soda and oil... thats funny!

The carb has never been apart.

I guess I should just yank the carb off and replace the two gaskets in question.

Thanks for the reply.

My old unfinished college web development project was a website about Holleys. Check it out, it may be of some use.

http://web.njit.edu/~gag0046/holley

Not all links work because I had 3 sites to make, and this was one of five I made, and the digital camera I was using quit and I was SOL with progress. Click on "Rebuild the 4160 with pictures" for a general idea of how they come apart and go back together. A $30 rebuild kit will come with metering block gaskets and stuff. You can also buy the bowl gaskets seperately for $10 from Autozone, but I'd rather just spend $40-$45 rebuilding the whole thing just to freshen it all up.

Oh, I also remember the baking soda trick now. It isn't baking soda, it's white baking flour. If you drip oil and don't know where it's coming from, toss on the flour and it'll stick to wherever there is oil so that you could maybe see where it's coming from, or trace the drips. Wheee!