Carburetor gas leak

How-to's and repair secrets for your 4WD can be found here. Have a question? Ask it in here!
User avatar
Petros
Highest Ranking Member
Posts: 11941
Joined: Sun Jan 28, 2007 6:31 pm
My tercel:: '84 Tercel4wd w/extensive mods
Location: Arlington WA USA

Re: Carburetor gas leak

Post by Petros »

if you have gasoline in the motor oil, the fuel pump needs to be changed asap! You will smell it on the dip stick and if bad the oil viscosity will be very low. Either case change the oil too.

fuel pumps are available from most autoparts stores, several models of toyotas used this same pump, they care common and not to costly. Really cheap from Rockauto, if you have the time to wait to get one. Many Autozone, Oreiley's, or NAPA stores will have them in stock, or can get them same day or next day.
'87 Tercel 4wd SR5 (current engine swap project)
'84 Tercel 4wd (daily driver, with on going mods)
'92 Mazda MPV 4wd (wife's daily driver)
'85 Tercel 4wd DLX auto(daughter's daily driver)
'01 Honda Civic (other daughter's daily driver)
walrus
Newbie
Posts: 11
Joined: Sun Nov 30, 2014 7:12 pm
My tercel:: 1984 tercel wagon deluxe

Re: Carburetor gas leak

Post by walrus »

Forgot to come vack with an update. I replaced the fuel pump as suggested and it fixed the gas smell. I havent had time to extensively test it but it seemed good. I still kind of want to rebuild the carb because of how much the car diesels when I shut it off but I'll probably atleast put it off for now.
User avatar
dlb
Highest Ranking Member
Posts: 7446
Joined: Mon Jul 06, 2009 9:03 pm
My tercel:: '87 sr5, '83 dlx parts car
Location: bc, canada

Re: Carburetor gas leak

Post by dlb »

glad to hear the fuel pump fixed it.

dieseling can be caused by incorrect ignition timing, running rich, vacuum leaks...i'm sure there are other things too. i would check the timing, look for vacuum leaks, and check the float bowl level through the sight glass on the front of the carb. check the fuel level both when the engine is running and off. i had one carb that would flood while running and then level out once the engine was off.

was it also dieseling before you replaced the fuel pump?
walrus
Newbie
Posts: 11
Joined: Sun Nov 30, 2014 7:12 pm
My tercel:: 1984 tercel wagon deluxe

Re: Carburetor gas leak

Post by walrus »

Well, finally got back in town and started driving the tercel regularly again and it seems the fuel pump didn't fix as much of the problem as I had hoped. I really am thinking it is the carburetor and so now I'll probably have to do the rebuild.
User avatar
marlinh
Highest Ranking Member
Posts: 1586
Joined: Sun Apr 08, 2012 9:15 am
My tercel:: 'Everett' Blue 87 4WD Wagon (Rocky 86, recently retired)
Location: Kootenays

Re: Carburetor gas leak

Post by marlinh »

I had a fuel pump start leaking recently. It actually sprayed fuel on to the firewall.
Post Reply