Heavy fuel smell
03-19-15, 02:50 PM
#1
Junior Member
Thread Starter
Join Date: Oct 2013
Location: Austin
Posts: 4
Likes: 0
Received 0 Likes
on
0 Posts
Heavy fuel smell
I searched the FAQs and found similar threads, but not quite the same.
My 84 GS 12A carbureted vehicle can have a very heavy fuel smell in the inside while driving. I've had the car checked twice by a qualified mechanic (at least I believe he is qualified) but nothing turned up. There is no evidence of a leak - no liquid fuel anywhere that I can find, on or under the car. The weather stripping is pretty bad. It does not smoke excessively. It has a Holley 4bbl competition carburetor and an electric fuel pump. The MPG has dropped some recently. Any ideas? Tks.
My 84 GS 12A carbureted vehicle can have a very heavy fuel smell in the inside while driving. I've had the car checked twice by a qualified mechanic (at least I believe he is qualified) but nothing turned up. There is no evidence of a leak - no liquid fuel anywhere that I can find, on or under the car. The weather stripping is pretty bad. It does not smoke excessively. It has a Holley 4bbl competition carburetor and an electric fuel pump. The MPG has dropped some recently. Any ideas? Tks.
03-28-15, 10:36 AM
#3
Engine, Not Motor
iTrader: (1)
Join Date: Feb 2001
Location: London, Ontario, Canada
Posts: 29,789
Likes: 0
Received 108 Likes
on
91 Posts
As it is indicated the mileage has dropped suddenly, that means two things:
-fuel ending up outside the engine, from a leak
or
-fuel ending up inside the engine, being burned
Run the fuel pump for as long as necessary without running the engine to make SURE there isn't an external leak around the tank, lines, or carb.
If you are SURE there isn't a leak, then check the carb. Needle/seat may be damaged and hosing fuel into the engine. A rotary will run surprisingly well on 5x the amount of fuel it needs, but it will stink and both power & economy will suffer.
-fuel ending up outside the engine, from a leak
or
-fuel ending up inside the engine, being burned
Run the fuel pump for as long as necessary without running the engine to make SURE there isn't an external leak around the tank, lines, or carb.
If you are SURE there isn't a leak, then check the carb. Needle/seat may be damaged and hosing fuel into the engine. A rotary will run surprisingly well on 5x the amount of fuel it needs, but it will stink and both power & economy will suffer.
Thread
Thread Starter
Forum
Replies
Last Post