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fuel pump spitting
Posted by: St.Hubbins ()
Date: February 17, 2018 05:31AM

just changed oil, and while checking for oil filter leak, noticed gas seeping/spitting from the fuel pump. wondering if i can need to have towed to my mechanic, or if it’s driveable. thanks in advance!

64 Monza Convertible, Powerglide, Goldwood yellow

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Re: fuel pump spitting
Posted by: v8vair ()
Date: February 17, 2018 05:43AM

Gasoline on a hot motor and maybe a spark ? tow it

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Re: fuel pump spitting
Posted by: Lane66m ()
Date: February 17, 2018 05:50AM

Or ask your mechanic if he will make a house visit with a fuel pump and o-ring. Don't forget the line wrenches needed for the pump change. Simple pump change that you could do it yourself.

Al Lane
Ellabell GA

1966 Monza Coupe, 110 hp, 4 Spd
1968 Camaro SS Coupe 350 CI 295+ HP PG
1964 Greenbrier Deluxe, 6 dr, 80 hp car engine, PG
2015 Chevrolet Malibu 2LT
2018 Chevrolet Silverado LTZ Z71 Centennial Edition
1947 Farmall A tractor 15 hp


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Re: fuel pump spitting
Posted by: stitch ()
Date: February 17, 2018 06:12AM

First make sure the top screws/bolts are tight on top...

"If you can't fix it with a Hammer, you have an Electrical problem."
Stitch...
Schertz, Texas.
(Smallish town/burg 17 mi. NE of San Antonio)

!967.. 4th body
8th off the line

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Re: fuel pump spitting
Posted by: JimBrandberg ()
Date: February 17, 2018 06:22AM

Is it coming out the top center hole or the rear weep hole?

Jim Brandberg
Isanti, MN
CorvairRepair.com

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Re: fuel pump spitting
Posted by: St.Hubbins ()
Date: February 17, 2018 06:38AM

definitely coming out the back side, not sure if this is the weep hole... would love to think i could swap one in, but this is uncharted territory for me. Clark's appears to have in stock.

64 Monza Convertible, Powerglide, Goldwood yellow

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Re: fuel pump spitting
Posted by: roger65180 ()
Date: February 17, 2018 07:31AM

First tighten up all the screws or bolts around the top cover a new pump might start leaking before you get home from the shop it happens all the time.

Roger R
Madison Wi
62 ct pg turbo
65intercooled 180 4sp,autocrosser
62 Rampy

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Re: fuel pump spitting
Posted by: St.Hubbins ()
Date: February 17, 2018 12:24PM

tightened each flathead about a full turn and ran it for 5 minutes. not a single spitlle of fuel in sight. case closed? or do i need to run til operating temp achieved?

anyone ever catch their wedding ring on the alt. flywheel? woo-ie! bet i won't make that mistake againeye popping smiley

64 Monza Convertible, Powerglide, Goldwood yellow

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Re: fuel pump spitting
Posted by: moomba32 ()
Date: February 17, 2018 12:46PM

My wedding ring rarely makes it out of the jewelry box, I like my fingers so I'm a no there.
I've quit trusting the mechanical fuel pumps, mine are getting electric pumps very soon, 64 has had one for years.

Don Marlowe
66 Monza 2Dr 140/pg
64 Spyder convertible now, 110/pg
Eutawville SC

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Re: fuel pump spitting
Posted by: joelsplace ()
Date: February 17, 2018 12:54PM

If they were that loose I would say case closed. Do keep an eye on it for a while anyway. Loose screws are a very common issue especially with a new pump.
If you replace it I want your old one.



Edited 1 time(s). Last edit at 02/17/2018 12:54PM by joelsplace.

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Re: fuel pump spitting
Posted by: St.Hubbins ()
Date: February 19, 2018 02:11PM

drove it today for a short period - upon returning i observed no moisture, but a bit of gas vapor (if that's the correct term) emitted from the bottom right seam. all the screws are cranked pretty tight, so i'm not feeling great about it...

64 Monza Convertible, Powerglide, Goldwood yellow

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Re: fuel pump spitting
Posted by: Vairismo ()
Date: February 19, 2018 04:50PM

St.Hubbins Wrote:
-------------------------------------------------------
> drove it today for a short period - upon returning
> i observed no moisture, but a bit of gas vapor (if
> that's the correct term) emitted from the bottom
> right seam. all the screws are cranked pretty
> tight, so i'm not feeling great about it...

Any chance that could be crankcase blowby?

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Re: fuel pump spitting
Posted by: St.Hubbins ()
Date: February 19, 2018 05:54PM

gosh, i don't know. looks like white smoke/steam from the bottom seam in fuel pump, the screw at 5 o'clock when looking down at it. driving fine, but need to park it until this gets sorted... i did notice some oil has seeped out of dipstick tube as well.

64 Monza Convertible, Powerglide, Goldwood yellow

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Re: fuel pump spitting
Posted by: MattNall ()
Date: February 19, 2018 05:56PM

Pull the dipstick and SMELL it... might be gasoline dilution...





MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

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Re: fuel pump spitting
Posted by: St.Hubbins ()
Date: February 19, 2018 06:14PM

YES, dipstick definitely smells of gasoline. how to proceed?

64 Monza Convertible, Powerglide, Goldwood yellow

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Re: fuel pump spitting
Posted by: MattNall ()
Date: February 19, 2018 06:16PM

Drain oil! Change filter... then keep an eye on it...all anyone could do... you'll know right away if it's leaking into the engine.





MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
Click HERE for My Website...Click HERE for My TechPages!
..............................110-PG.................................................Webered-Turbo

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Re: fuel pump spitting
Posted by: stitch ()
Date: February 19, 2018 06:20PM

If you had gas leaking, Everything will smell like gas in the engine bay! Take the dipstick out and AWAY from engine bay and smell... Better yet, when you move a few feet back, put a match to it and see if it catches.. Best to prolly drain oil, if in doubt, and refill. Just keep an eye on the "Vapors" that you saw...

"If you can't fix it with a Hammer, you have an Electrical problem."
Stitch...
Schertz, Texas.
(Smallish town/burg 17 mi. NE of San Antonio)

!967.. 4th body
8th off the line

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Re: fuel pump spitting
Posted by: St.Hubbins ()
Date: February 19, 2018 06:33PM

drain the new oil i just put in over the weekend? noticed oil coking last week, so put new filter on and fresh VR1 10w30 in, and new air filter.

64 Monza Convertible, Powerglide, Goldwood yellow

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Re: fuel pump spitting
Posted by: moomba32 ()
Date: February 19, 2018 06:55PM

Mechanical fuel pumps will occasionally fail and pump gasoline into the oil, this dilutes the oil and prevents it from protecting the engine. If there is gas in the oil it will kill the engine bearings. That's why they suggest changing the oil and I support using electric pumps.

Don Marlowe
66 Monza 2Dr 140/pg
64 Spyder convertible now, 110/pg
Eutawville SC

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Re: fuel pump spitting
Posted by: St.Hubbins ()
Date: February 19, 2018 07:07PM

gotcha, makes total sense. i ran a lighter under the dipstick as Stitch suggested - no catch, but i guess there could still be gas in there.

read up on Corvair Underground's fuel pump stories, which just further muddy the waters for me (eg. temporary, isolated failure?!)

are comparable filters available at your O'Reilly's and such? i've only ever sourced from Clark's

64 Monza Convertible, Powerglide, Goldwood yellow



Edited 1 time(s). Last edit at 02/19/2018 07:09PM by St.Hubbins.

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