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 1984 carb draining overnight into the oil
#881192
04/16/08 03:14 AM
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Joined: Apr 2008
Posts: 15
OP
Need a Spot
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I've read a lot of forums, but found the right answer. my carb is draining into the oil and getting worse. I've replaced both accerator pumps and no help.
Could it be:
-float needle valve?
-fuel pump diaphram bad and draining into the block?
-float chamber gasket bad, leaking into the intake?
or what else?
I have a rebuild kit, but like to know the root cause first before I tear it down blindly.
1984 X-cab 4x4, chevy one wire alternator, 22r, looking for mods
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Re: 1984 carb draining overnight into the oil
[Re: 1984NCYota]
#881193
04/16/08 03:23 AM
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Joined: Oct 2002
Posts: 15,887
Toyota & Classifieds Moderator
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We just had a rather lengthy discussion about this very thing LINKY You'll find it quite informative. <img src="/forums/images/graemlins/kewl.gif" alt="" />
http://www.walkablecommunities.org/Democracy is two wolves and a lamb voting on what to have for dinner. Liberty is a well-armed lamb contesting the vote. **ubi apis- ibi salus**
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Re: 1984 carb draining over night into the oil
[Re: kewlynx]
#881194
04/16/08 04:51 AM
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Joined: Apr 2008
Posts: 15
OP
Need a Spot
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Thanks for the reply, it still doesn't tell why gas drains into the oil. It just addresses the hard starting problem. Mine does hard start, but I know my fuel bowl is empty because the gas drained into the oil.
Its either the carb or maybe the fuel pump, I think.
Any more ideas??????
1984 X-cab 4x4, chevy one wire alternator, 22r, looking for mods
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Re: 1984 carb draining over night into the oil
[Re: 1984NCYota]
#881195
04/16/08 04:35 PM
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Joined: Aug 2005
Posts: 58
Getting the Wheeling Fever
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Gas in the oil sure sounds like a fuel pump issue. Not real sure how it could go from the bowl to the oil, so you may have 2 problems. But definitely check the fuel pump.
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Re: 1984 carb draining over night into the oil
[Re: krb90]
#881196
04/16/08 07:43 PM
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Joined: Dec 2006
Posts: 233
Wheeler
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Check the weap hole on the fuel pump.
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Re: 1984 carb draining overnight into the oil
[Re: 1984NCYota]
#881197
04/17/08 07:43 PM
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Joined: May 2006
Posts: 457
Mudrunner
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Is the fuel just disappearing overnight or have you verified that it is getting into the oil? (IE does your oil smell of fuel?)
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Re: 1984 carb draining overnight into the oil
[Re: Davepet]
#881198
04/17/08 09:23 PM
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Joined: Apr 2008
Posts: 15
OP
Need a Spot
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Yes, there's gas in the oil. I've been checking the float bowl for the last two mornings and I'm seeing gas now??? I don't know what I've done to stop it or slowed it down.
I guess the gas got in the oil before I replaced the AAP (I hope). It has been hard to start again, but I think I have the choke stem in the electric choke housing wrong. I tries to close but stills leaves a 1/2" gap. That's probably causeing the hard start now. I'm looking at it tonight.
I pulled off the fuel pump and compressed the arm, blocked the ports with my finger for 2 minutes and it held suction fine. So that's not it.
I changed the oil so I'll keep my eye on it for more gas.
Thanks for the replys and if I find something else I'll update the thread for future use.
Now to fix the leaking inner axle seal.
1984 X-cab 4x4, chevy one wire alternator, 22r, looking for mods
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Re: 1984 carb draining overnight into the oil
[Re: 1984NCYota]
#881199
04/18/08 11:35 PM
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Joined: Dec 2006
Posts: 103
Wheeler
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Could it be that you connected the line from the carb to the wrong port on the fuel pump? There is a big difference in volume & pressure between the 2 "out" ports on a fuel pump. The larger volume/higher pressure port is for the return line on a 22R. <img src="/forums/images/graemlins/cheers.gif" alt="" />
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