Toyota Trucks: R-22 idle problem

Tyedboyne wrote: 

Glad to hear you're better! Could it be old gas, or water in the gas?

Tom - Vista, CA

>Glad to hear you're better!

Thanks!.
 

I dunno. But it had half a tank while it sat,
and the first thing I did when I revived it was to add some drygas, and then
put in a half tank of premium. I've run it down a quarter tank since then, and,
like I said, I've read of other folk here w/similar troubles, and none
of them mentioned letting the truck sit, or old gas. But if the problem goes
away when I'm all the way into an entire tank of fresh, that would be a simple
and easy solution.
A little too easy for my luck, prob'ly....

Any other Ideas?

Thanks again,

Drew.

For starters I'd check the float level. In the site glass on the front of
carb it should be somewhere around the middle. If is below the glass, the
float level is too low or the needle valve is stuck. Next, remove the air
cleaner and use at least a full can of carb cleaner on the linkage,
butterfly valves, and springs both inside and outside of carb. Try and get
any carbon/sludge off. While ur doing this move the throtle by hand through
its whole range. Let this dry, then hold open the butterfly valve and pull
the throttle to full and release. You should see fuel squirt into the
chamber. Put the air filter back on and fire the engine this may free up
any thing that stuck during the storage time.
My '85 FSM states possible cause of rough idle or stall as:
Idle speed incorrect, slow jet clogged, idle mixture incorrect, fuel cut
solenoid valve not open( you can across this one), choke faulty, or
secondary throttle valve not closed. If above cleaning doesn't solve
problem, I would turn up the idle. The adjustment screw is located on the
rear of the carb. Its spring loaded and on the carb body not the linkage,
these are high ilde adjustment which seems to be working properly. Stay
simple before you start replacing stuff.
Hope this helps
Nathan
"Tyedboyne" <comdeadspam> wrote in message
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R-22 
fine, 
gets, 
filter,air 
limit of 
a 
elecric(or 
so 
mechanic 

Nathan wrote: 
chamber. Put the air filter back on and fire the engine this may free up 

Ok, so to clarify---I should do all of the above with the engine cold? Let it
dry before starting?

My '85 FSM states possible cause of rough idle or stall as: 

My Haynes book also mentioned the EGR valve as a possible culprit. I was
planning to make cleaning the EGR filter my next step--if it ever stops
frikkin' raining here.
 

A-effing-Men!!!
 

Me too. Many thanks for the advice,

Drew.

Yea clean the carb cool, no need to be working over a hot engine. The
cleaner will evaporate rather quickly, just make sure there are no puddles
before you start the engine. It may be a bit rough at first while the
cleaner inside the carb burns off.
The EGR is a possibility you can clean the filter, check to function of the
valve. Its a bladder type if you remove the vac line you should be able to
hear/feel it move by blowing/sucking on the vac line.I think your Haynes
manual also has a picture of the EGR tube. It is mounted on the intake
manifold and the cylinder head. The gasket on the intake is replaceable at
any parts store, the back gasket on the head is part of the manifold gasket
so try your damnest not to tear it. This tube is often full of carbon use a
bottle brush and carb cleaner to remove all the build up
HTH
Cheers
Nathan
"Tyedboyne" <comdeadspam> wrote in message
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the 
air 
get 
through 
pull 
it 

I had a similar problem. It turned out to be a stuck butterfly.

http://im1.shutterfly.com/procserv/47b4dc26b3127cceb843522806980000001610

http://im1.shutterfly.com/procserv/47b4dc26b3127cceb843565387d10000001610

http://im1.shutterfly.com/procserv/47b4dc26b3127cceb84355a5468e0000001610

>I had a similar problem. It turned out to be a stuck butterfly.

Nice pics. But if this means I need to dismount and disassemble my carb, I'm
SOL. That kinda work is just a leeetle bit beyond my talents.

Drew.

Hi all,
I'm new to this group but I am a bit of a backyard mechanic. I recently bought an
86 runner with the 4y. Had the same problem and it turned out to be the main body
of the carby was loose. If you can move the top half of the carby and the bottom
doesnt move then its most likely the cause. I found the gaskets between the main
body and the butterfly assembly were allowing air into the system. The hotter it
got the worse it got. I rebuilt the carby and havent had the problem since.
Dont know if this will help but all suggestions are always good.
rgds,
Kevin

Tyedboyne wrote: