Why does my oil smell like gas??

epic37311 · 01-03-2005, 12:17 AM

Someone said it was my fuel pump gasket..what yall think?

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jimbo74 · 01-03-2005, 01:40 AM

what vehicle do you have? if its a mechanical fuel pump and you have a carb, thats possible.. but the gasket shouldnt have anything to do with it unless the mechanical fuel pump is internally damaged or leaking...

you have fuel in your oil... menaing your rings are bad or there is some type of leak somewhere....

jimbo74 · 01-03-2005, 01:40 AM

it could also mean a bad head gasket

epic37311 · 01-03-2005, 01:49 AM

I aint loosing any power though

jimbo74 · 01-03-2005, 01:55 AM

you dont have t obe losing any power to have leaky rings or a bad head gasket... the point is its contaminated and something is wrong

epic37311 · 01-03-2005, 02:00 AM

right . how can i check these things..plugs maybe

jimbo74 · 01-03-2005, 02:10 AM

you might want to do a compression test.... also, do you have a mechanical fuel pump with a carb or is your truck efi?

epic37311 · 01-03-2005, 02:18 AM

83 22r

jimbo74 · 01-03-2005, 02:25 AM

does your engine leak any oil? the reason i ask is because my fuel pump leaks oil... yup... oil into the engine bay... so its very possible i jsut almost have the opposite problem... but the same... the fuel pump has 2 little holes under its big head... well these holes on mine, oil drips out of them... dont know why...... its a pretty constant drip but my truck really doesnt lose that much oil and it doesnt seem contaminated...

**Yoda** · 01-03-2005, 03:53 AM

Probably the fuel pump.

jimbo74 · 01-03-2005, 04:49 AM

oh yeah, in case i made it unlear.. im thinking bad compression/head gasket or fuel pump... i would replace the fuel pump forst.. its cheaper...

Flamedx4 · 01-03-2005, 11:43 PM

Do you get lousy mileage? Maybe carb rebuild time? Maybe too much fuel is washing down the cylinders? Seen this more than once with a fuel injected vehicle, but it ran poorly and the mileage went way down. The only time I ever heard of it with a carb was when some fool put a HUGE carb on a stock small block. Ran poor and sucked fuel too. He finally listened to reason when he started smelling gas in the oil... Just another thought.

mikedog · 01-04-2005, 12:49 AM

How many miles are on it? Are you checking for the smell under the oil cap or after you drain it? A little fuel smell in the oil is normal for a high mileage 22r.

Have you replaced the two gaskets between the fuel pump and the head yet? There's a thin gasket on both sides of the fuel-pump spacer.

epic37311 · 01-06-2005, 03:06 AM

Quote:

Originally Posted by mikedog

How many miles are on it? Are you checking for the smell under the oil cap or after you drain it? A little fuel smell in the oil is normal for a high mileage 22r.

Have you replaced the two gaskets between the fuel pump and the head yet? There's a thin gasket on both sides of the fuel-pump spacer.

Its got 320,000 miles and the gas smell was real bad when i drained the oil. I replaced the fuel pump and 1 line and it is running real good. Fuel pump after all. Runs like a top.

01-03-2005, 03:53 AM	#10 (permalink)
Yoda Super Moderator Staff Join Date: May 2002 Location: North Bend, WA Posts: 2,664	Probably the fuel pump. __________________ David TLCA 14788 71 Landcruiser FJ-40 TBI 327, TH-350, Warn 8000, disk axle swap. 76 Landcruiser FJ-40 project/parts (haven't decided)

01-03-2005, 11:43 PM	#12 (permalink)
Flamedx4 Registered User Join Date: May 2004 Location: 100 miles offshore as much as possible, & Springfield Oregon USA Posts: 3,285	Do you get lousy mileage? Maybe carb rebuild time? Maybe too much fuel is washing down the cylinders? Seen this more than once with a fuel injected vehicle, but it ran poorly and the mileage went way down. The only time I ever heard of it with a carb was when some fool put a HUGE carb on a stock small block. Ran poor and sucked fuel too. He finally listened to reason when he started smelling gas in the oil... Just another thought. __________________ All my Yotas are gone. Stuff to sell: http://www.yotatech.com/showthread.p...39#post1009839 -Phil

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01-03-2005, 01:40 AM	#2 (permalink)
jimbo74 Banned Join Date: Jan 2004 Location: Nor*Cal Posts: 6,582	what vehicle do you have? if its a mechanical fuel pump and you have a carb, thats possible.. but the gasket shouldnt have anything to do with it unless the mechanical fuel pump is internally damaged or leaking... you have fuel in your oil... menaing your rings are bad or there is some type of leak somewhere....

01-03-2005, 01:40 AM	#3 (permalink)
jimbo74 Banned Join Date: Jan 2004 Location: Nor*Cal Posts: 6,582	it could also mean a bad head gasket

01-03-2005, 01:49 AM	#4 (permalink)
epic37311 Contributing Member Join Date: Oct 2004 Location: Decatur TN Posts: 969	I aint loosing any power though

01-03-2005, 01:55 AM	#5 (permalink)
jimbo74 Banned Join Date: Jan 2004 Location: Nor*Cal Posts: 6,582	you dont have t obe losing any power to have leaky rings or a bad head gasket... the point is its contaminated and something is wrong

01-03-2005, 02:00 AM	#6 (permalink)
epic37311 Contributing Member Join Date: Oct 2004 Location: Decatur TN Posts: 969	right . how can i check these things..plugs maybe

01-03-2005, 02:10 AM	#7 (permalink)
jimbo74 Banned Join Date: Jan 2004 Location: Nor*Cal Posts: 6,582	you might want to do a compression test.... also, do you have a mechanical fuel pump with a carb or is your truck efi?

01-03-2005, 02:18 AM	#8 (permalink)
epic37311 Contributing Member Join Date: Oct 2004 Location: Decatur TN Posts: 969	83 22r

01-03-2005, 02:25 AM	#9 (permalink)
jimbo74 Banned Join Date: Jan 2004 Location: Nor*Cal Posts: 6,582	does your engine leak any oil? the reason i ask is because my fuel pump leaks oil... yup... oil into the engine bay... so its very possible i jsut almost have the opposite problem... but the same... the fuel pump has 2 little holes under its big head... well these holes on mine, oil drips out of them... dont know why...... its a pretty constant drip but my truck really doesnt lose that much oil and it doesnt seem contaminated...

01-03-2005, 04:49 AM	#11 (permalink)
jimbo74 Banned Join Date: Jan 2004 Location: Nor*Cal Posts: 6,582	oh yeah, in case i made it unlear.. im thinking bad compression/head gasket or fuel pump... i would replace the fuel pump forst.. its cheaper...

01-04-2005, 12:49 AM	#13 (permalink)
mikedog Registered User Join Date: Jul 2003 Location: So. Cal Posts: 176	How many miles are on it? Are you checking for the smell under the oil cap or after you drain it? A little fuel smell in the oil is normal for a high mileage 22r. Have you replaced the two gaskets between the fuel pump and the head yet? There's a thin gasket on both sides of the fuel-pump spacer.