84-85 Trucks & 4Runners 2nd gen pickups and 1st gen 4Runners with solid front axles

Carburetor Problems

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Old Dec 20, 2009 | 12:47 PM
  #1  
samziegl's Avatar
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Carburetor Problems

I have a 20R/22R hybrid engine in a 1st gen toyota pickup. I have a Weber 32/34 carb and this is what happens when my truck dies:

1) the RPM needle jumps up and down
2) The engine shudders and the truck drives super jerky (like its running out of fuel)
3) The truck stops running and isnt getting any fuel to the engine.

I checked the fuel line just before the carb and there is fuel.

What would make my carb clog like that?
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Old Dec 20, 2009 | 12:53 PM
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Whoops, i meant 32/36 DGEV weber. sorry
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Old Dec 20, 2009 | 01:06 PM
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From: Ridgecrest, Ca
Same thing mine was doing, I just dumped the weber, rebuilt the aisin, and she runs better than ever, still need to adjust the choke, it doesnt work.


Here is a link on the issues.
https://www.yotatech.com/forums/f123...-price-197075/
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Old Dec 21, 2009 | 11:11 AM
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From: so.cal
dirty filter?

sediment in the tank blocking the line? partial unblock at low RPM's.

http://www.racetep.com/weber.html
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Old Dec 21, 2009 | 04:37 PM
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Ya im in the same boat.... I have like nothing after half throttle it just falls on its face. I have the same carb, I have done the lean idle adjust procedure like ten times and I threw a new fuel filter on it. I am starting to lean to a weak fuel pump... Anyone?
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Old Dec 21, 2009 | 04:52 PM
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From: Troy, Idaho
I have the same problem but only when pulling a long steep grade. I suspect weak fuel pump
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Old Dec 21, 2009 | 10:26 PM
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From: Ridgecrest, Ca
Im telling ya, rebuild the carb. One i rebuilt her, no issues, except i forgot to adjust the choke, so no choke till i drill the rivets and replace with screws. Give her 3 pumps in the morning, and fires right up.
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Old Dec 25, 2009 | 05:50 PM
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I'm about to tear off the carb tomorrow and take it apart. I'm gonna rebuild and throw on a new air filter. I think im going to check my fuel filter and pump too. we'll see if that does the trick
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Old Dec 28, 2009 | 06:15 AM
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From: Van Buren, ARKANSAS
I also have a 22r that is slowly but steadily running like crap. I still have the stock carb, is is better to reubild it?? I've heard of readjusting the float level to gain steeper angles while climbing. (I intend to do some rock climbing) Is this true?

samziegl can you post some pics of the carb rebuild/problems you encounter. i'm eventually going to rebuild mine soon.
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Old Dec 28, 2009 | 02:22 PM
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I'm in the middle of a head gasket / timing chain replacement and I'm thinking I might want to rebuild the carb while I'm at it. I was having some issues before the HG blew that I'm pretty sure is the carb.

If I do the carb - I want to do everything including the floats (separate part/purchase).

Any tips would be appreciated as the AISIN looks intimidating to the first-timer.
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Old Dec 29, 2009 | 05:20 AM
  #11  
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From: Charleston, SC
yea samziegl im having the same problem. i have a lot of rust in my gas tank so you might want to dump out your fuel filter on a white paper towel and see if you got rust in it. if so you prolly got rust in the carb. rust in the jets or float stuck. unfortunatly i have taken mine apart several times i having the same problem. so i guess one day im going to have to change all my lines and everything and hope for the best
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Old Dec 29, 2009 | 07:08 PM
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From: CO USA
I had rust in the tank/filter and after rebuilding the carb I used berrymans b12 in every other tank of gas, went through a bunch of filters, but eventually the b12 cleared all of the rust from the lines. If there is rust the b12 or seafoam (b12 is cheaper) will keep it from building up. just my .02. -Abe

https://www.yotatech.com/forums/f123...d-trip-162783/
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Old Feb 24, 2010 | 08:31 AM
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From: covington la
hey sam or flat yota how did u fix it my demon falls flat on its face at about 2,200?
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Old Mar 6, 2010 | 06:21 PM
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From: Victoria B.C Canada
Buy a oadapter that accepts the holley carb to the stock intake.With a little porting,take a Ford 2 barrel gskt and clean the adapter so the gskt fits .Find a Ford 2 barrel carb new or rebuilt,check and change the jets to some smaller ones .I run 40s.Still a tad rich for my truck.You will have to modifiy your linkage to work properly.It is a great trade off reaonable cost and great runability.
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Old Feb 15, 2011 | 04:56 PM
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From: WA
I brought my '83 p/u 22R into the shop to have the carb. rebuilt. But now I am selling the truck and have an '81. I feel the carb going out and want to swap them out before hand. I'm not much of a mechanic, yet.
http://www.ehow.com/how_2104624_replace-carburetor.html
Is it really that easy?

I can get my hands on a chiltons from the library. I just really don't have the funds to take it in again.

Advice?
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Old Feb 18, 2011 | 01:07 PM
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From: covington la
i just did an engine swap not a mechanic at all, my advise take lots of pics
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