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Post by 86taco on May 13, 2007 19:40:14 GMT -5
Anyone know how hard the stock carbs are to rebuild ? My 84 22r needs some help. It is hard starting ,idles rough and hesitates when ideling up. The timing is set right and no vacuum leaks. It has been sitting for 5 years. I need to check the fuel pump for pressure, may have a hole in the diaphram.
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Post by 82yota on May 13, 2007 20:00:05 GMT -5
They aren't that bad to do. Just remember how everything came apart and make sure to use up all the parts when putting it back together. I usually get a nice white rag and lay all the parts out on that so i can find them easily when I got to put the thing back together. I've done mine twice now. These carbs aren't all that complicated. And another thing I would do if it isn't already done is put a manual choke in it. My electric choke always gave me problems and I couldnt be happier with the manual choke I put in. If the electric choke is working fine then leave it but if its giving you problems manual is the way to go.
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Post by 86taco on May 14, 2007 10:19:58 GMT -5
I dont think my choke is working right. It stays closed when its warmed up. But I put a clothespin on it to hold it open and it still ran the same.
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Post by 82yota on May 14, 2007 21:58:22 GMT -5
You should put a manual choke on then. The choke is supposed to fully open when the motor is warmed up. With a manual choke you can pick exactly when you want it to turn off and also you can set the fast idle whenever you want to. Get a rebuild kit and take an afternoon and rebuild it just remember where everything goes and it will go well. And putting a manual choke on wont hurt anything. If you don't like it all you have to do is hook up the old electric choke but I think you will like the manual one.
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Post by mississippimud on May 14, 2007 22:05:45 GMT -5
I agree use manual the dang electric choke is tied into a few other electrical things that may be hindering the operation, GO Manual...that as you said doesnt fix the carb trash problem but after a fresh overhaul it will be less probs. My 83 feeds fire to the choke from the charge circut (NIGHTMARE) anyway I have that fixed and have a manual choke works great now, xpecially since its 88 degrees here now...rebuild is easy get good parts and take your time..also use low pressure air to clean out dont throw the full 120 pounds of pressure you tank holds to anything only takes about 10-15 pounds to clean and dont stop the hole tottally up just shoot alittle threw use a pipe cleaner to clear obstacles...good spray cleaner and a little time youll be awight..
Bill
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Post by 86taco on May 22, 2007 17:21:18 GMT -5
I am not worried about the choke right now. I pulled the top off the carb last weekend and cleaned it all out. There was a lot of crap in the bowl. Got all that cleaned out seems to be running better. stubles on acelleration when gassed hard. I drove it yesterday and id idled normal at first then it wouldnt idle at all then it idled high. Just gonna have to break down and do a total rebuild.
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Post by 82yota on May 22, 2007 21:06:48 GMT -5
Its not a hard task. The reason it stumbles when you get on it is because the acceleration pump is not doing its job. The diaphram is more than likely cracked. And as for the idle is this when you start it and as it warms up for the idle because if it is it is acting like mine does. Mine idles low with the choke off at first until it warms up because there is extra gas being dumped in for added acceleration on the start. If you let it warm up sitting there not driving when it gets warmed up to a certain point the vaccum shuts this extra fuel off and the motor stumbles for a bit then catches itself and run normally because it is then getting the correct amount of fuel. On mine it only idles poorly for a very short while. I've dealt with the carb for a while now and I'll tell you the manual choke setup was only $14 and was one of the best buys I've done on the truck.
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Post by mississippimud on May 22, 2007 22:27:52 GMT -5
agrees with 82..get the manual choke, and see where that gets ya.....Its a TOY its worth fixin.....and the accelarate pump...hmmm........its a simple diagrham nothing to feak about 82 is right on that(maybe) if the choke is acting crazy I will not agree be if it is then the acc pump may not be the issue....I am rambling...
Do this first unplug the elec choke and see what that does...
I am gonn ahush my perdy wife just said it was bed time(SMILE)......unplug th elec choke brother and holler back...later
BILL
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Post by 82yota on May 23, 2007 22:29:08 GMT -5
I'm not talking about the main acceleration pump. There is a secondary one controlled by a thermo vaccum switch that dumps more fuel to the engine while it is cold and shuts off at a certain temp. When mine shuts off the truck stumbles and sometimes will die but i give it a bit of gas to help it through it and the idle goes to perfect right away. To see if its the choke causing the problem when it starts to not idle at all take the air breather off and force the choke butterfly open. If it clears up the choke is your problem and go manual.
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Post by ediblecrayons03 on May 24, 2007 11:45:05 GMT -5
give it an itialian tune up. even if it dosent work, it will be fun. just watch out for cops!  |
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Post by 86taco on May 24, 2007 16:46:38 GMT -5
I am going to rebuild it this weekend. I think the secondaries arnt working. Yesterday the motor was cold and I pumped it twice and cranked it over and it didnt even attampt to pop off. So I pumped it about 10 times and it fired right up an idled fine.
I have only drove it twice. It only didnt want to idle one time. We will see how it runs after the rebuild. Rubber coating the whole truck right now.
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Post by 82yota on May 24, 2007 19:45:41 GMT -5
Well it would be your accelerator pump not working if you had to pump it that many time. When you usually pump it a few times when you start it it give 3 or 4 good shots of fuel. You saying you pumped it 10 times means its not doing its job. Also the power jet in the bottom of the float bowl may be leaking the fuel out of the bowl when you shut the truck off overnight being the reason you have to crank it so long to be able to get fuel into the carb so the accelerator pump can do its job. I've got something I'm trying to track down on my beast right now and I think its the vaccum advance because it is not accelerating like it used to at highway speeds. It does not feel like its jumping and the secondaries don't feel like they are opening either so it may be a total vaccum problem but I'll track the problem down but yours sounds like a carb problem.
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Post by 86taco on May 24, 2007 19:54:43 GMT -5
Yea the one valve thing on the inside of the carb that has the spring on it was stuck shut when I pulled it apart, got that working. I suspect the accelarator pump same as you. Rebuild kit will be in tomorrow.
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Post by 86taco on May 25, 2007 16:05:26 GMT -5
Just got done with the carb rebuild. It was pretty easy. Now I have to put it on and see how it runs. Maybe not till monday. Dammit  |
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Post by smwheelin on May 27, 2007 12:40:43 GMT -5
it the manual choke like the old FJs? with a little pull knob in the cab?
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Post by 86taco on May 27, 2007 16:25:08 GMT -5
Thats the way they usually are set up. How did you guys hook it up to the carb?
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Post by 82yota on May 27, 2007 18:13:52 GMT -5
I bought a manual choke kit from Canadian Tire I think. You just take the electric part off and put the manual part on in its place and run the cable. I got a 4 foot cable and it was just enough. All the stuff that you will need comes in the kit. I think it was $11 or so.
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Post by 86taco on May 27, 2007 18:56:05 GMT -5
I have a couple of cables laying around right now. May have to have a few brews and stare at it for a whole and figure out somthing.
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Post by mississippimud on May 29, 2007 22:00:57 GMT -5
82 you is right, the secondary...I wasnt thinkinin that after he gave more info, you was hammer on nail, hit just right...Just glad he back in business.....still with all the elctrical issues I have had with this 83, manual choke only way to go on old trucks..it involvles several elements to make sure it works correct....I like my push pull cable...that way I know its working
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shawnruley
New Member
Grease Monkey In Training
Posts: 44
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Post by shawnruley on May 29, 2007 23:32:22 GMT -5
my carb was doing that too-hard starting, rough idling, ect.
I was going to rebuild but first I dumped a can of carbon cleaner down the carb and she runs fine now, its still a bit finicky when its cold but Im gonna leave it alone for now
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