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Carburator leaks
- ilikescars
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28 Mar 2009 17:53 #13046
by ilikescars
Replied by ilikescars on topic More leaks resolved
I was wondering why it took so long to start my 36 Auburn after it had been sitting for as little as two weeks. I would crank my engine until I realized it wasn't gonna start, and finally, I would resort to squirting a little gas into the carb.
Now, I have figured it out: The gasoline in the float bowl was seeping out through the main discharge jet plug (the brass plug at the bottom of the bowl) and the seepage was almost undetectable. In other words, the bowl was dry, and the slow engine cranking would not allow the mechanical fuel pump to replenish the bowl.
Repairing the leak turned out to be frustrating, until I realized that the plug was bottoming-out on the main jet, and couldn't be tightened all the way down on the small fiber gasket. Simple solution: add a soft copper washer on top of the fiber washer. This allowed the plug to seat properly on the gasket. Leak has been stopped, and the bowl is always full for the next start-up!
I hope this helps some of the die-hards (like me) that don't want to use an electric fuel pump.
Mark
Now, I have figured it out: The gasoline in the float bowl was seeping out through the main discharge jet plug (the brass plug at the bottom of the bowl) and the seepage was almost undetectable. In other words, the bowl was dry, and the slow engine cranking would not allow the mechanical fuel pump to replenish the bowl.
Repairing the leak turned out to be frustrating, until I realized that the plug was bottoming-out on the main jet, and couldn't be tightened all the way down on the small fiber gasket. Simple solution: add a soft copper washer on top of the fiber washer. This allowed the plug to seat properly on the gasket. Leak has been stopped, and the bowl is always full for the next start-up!
I hope this helps some of the die-hards (like me) that don't want to use an electric fuel pump.
Mark
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- mikespeed35
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06 Jan 2008 06:08 #9101
by mikespeed35
Mike Huffman
Replied by mikespeed35 on topic Carburator leaks
Thanks for the tip. I will seal it, but will use locktite med strength.
CORDially Mike
CORDially Mike
Mike Huffman
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- ilikescars
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05 Jan 2008 16:03 #9092
by ilikescars
Carburator leaks was created by ilikescars
Whenever I've seen engine compartment photographs, it's hard not to notice that on most cars, there is evidence of gasoline seepage around the carbs.
There is one small leak that may be overlooked and is easy to fix on the Stomberg: the Float Fulcrum pin. This is the small brass screw that is next to the gas inlet. I noticed a small amount of gas seeping out from around this screw on my carb. I simply removed the screw, applied a small amount of clear Seal-All to the threads and reinstalled. No more leak.
Mark
There is one small leak that may be overlooked and is easy to fix on the Stomberg: the Float Fulcrum pin. This is the small brass screw that is next to the gas inlet. I noticed a small amount of gas seeping out from around this screw on my carb. I simply removed the screw, applied a small amount of clear Seal-All to the threads and reinstalled. No more leak.
Mark
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