Why does the carburetor overflow?

Asked by Nov 09, 2012 at 08:44 PM about the 1961 Mercury Comet

Question type: Maintenance & Repair

I have a 1961 Comet  232 with a holly carburetor.  It runs fine but after a minute or two gasoline starts spilling out of the top of the float chamber.  The float valve seems to be working in spec.  Is there another possible cause for the overflow?

3 Answers

104,345

Have you upgraded your fuel pump? Might be more pressure than float valve can hold back. Also check seat where float valve closes and also tip of float valve. Just a small amount of trash or varnish on either could cause the same issue. Hope this helps.

2 out of 2 people think this is helpful.
1,205

Float level could be set too high as well.

104,345

Did not think of that. Float level is more likely the problem.

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Comet

Looking for a Used Comet in your area?

CarGurus has 23 nationwide Comet listings and the tools to find you a great deal.

ZIP:

Search Mercury Comet Questions

UK Questions

Are you a UK consumer? CarGurus now has a discussion forum in the UK.

Mercury Comet Experts

#1 COMETGUY61
COMETGUY61
Reputation 20,020
#2 magnus0328
magnus0328
Reputation 930
#3 FordNut
FordNut
Reputation 140
View All

Used Cars For Sale