[Bmaintz]

I bought the 1984 Toyota 22R with the carb....
The Toyota will start & run....
About ready to pull my hair out...

The back two plugs get wet with gas, you can pull the plug wire off & no change in idle, running on the front two cyclinders.....

What I have done so far:
Compression test looks good....
Gas level in Carb at correct level (sight glass)....
Fuel in Carb bowl clean & fresh.....
Correct fuel pump pressure....
New plug wires....
New Dist. Cap & Rotar......
Plug wires checked several times for routing.....

I am ready to pull the value cover off & check the Cam & Timing Chain for TDC....

Anybody have suggestions in what to look for....

Thanks in advance....
Bob

 

[80_pickup]

Top off the blinker fluid


I dunno, buy a new distributer while your at it, they cheap anyways like 40$

haha by the way never seen a !984 toyota before! just messing but I would try new distributer

 

[Bmaintz]

Are we trying to be funny??
Bob

 

[80_pickup]

It idles horrible correct? on 2 cylinders it would be one hell of a vibration and surge.

 

[fourwd1]

Does it run decent/fairly decent when cold then dog down as it warms up after 10-20-30 miles?

 

[Bmaintz]

AAP value.....

Did some research & pretty sure that it is the AAP (Auxiliary Accelerator Pump)....
Located on the carb adjacent to the value cover (vac. hose & 3-screws)...
If the diaphragm is ruptured or has a pinhole then raw gas will be sucked into the manifold thus wetting the plugs....
I have a hand Vacuum pump so will check it in the morning & report back...
Thanks,
Bob

 

[80_pickup]

never heard of that before but i hope thats what it is and you get it fixed!

 

[fourwd1]

Did some research & pretty sure that it is the AAP (Auxiliary Accelerator Pump)....
Located on the carb adjacent to the value cover (vac. hose & 3-screws)...
If the diaphragm is ruptured or has a pinhole then raw gas will be sucked into the manifold thus wetting the plugs....
I have a hand Vacuum pump so will check it in the morning & report back...
Thanks,
Bob

That is a fairly common problem with the carb, but your description of only the back 2 plugs wet may point else where.

 

[80_pickup]

I agree, i read that you can plug the vaccuum line on it and it will run fine, just might hesitate a little when its really cold.

 

[Bmaintz]

Did a vacuum test (hand Vac pump) & the AAP will not hold a vacuum, bleeds off slow not fast.....
The TVSV seems to be working as it shuts off vacuum to the AAP as the engine warms up.....
The #3 & #4 plugs are still wet with gas & the engine still runs rough...
I pulled the #3 plug wire off with no change in RPM.....
Since I had good compression on all 4 cylinders could it be a timing chain jumping a tooth????_________...
I may go ahead & pull the value cover off as I need to gap the values anyway...
Sure glad I have a Camry to drive around
Bob

 

[80_pickup]

take the back 2 sparks plugs off and start it off and see if the plug will spark unto the block so you know if you getting spark.

 

[Bmaintz]

I have taken a screwdriver to ground & fo get a good spark.....
My warm compression was 150, 150, 150 & 142 for #4.....
Going to test the ignition more on Sunday....
Thanks,
Bob

 

[Bmaintz]

I found the problem...!!
There is a small vacuum hose behind the carb & down a bit on the intake manifold....
This hose routes to a round vacuum booster that feeds the cruise control...
The hose at the intake end collected oil & had swelled (fell off)....
Bob

 

[80_pickup]

Run fine now?

Btw i meant ignition coil not distributer lol.