Mister Willie

I've pulled the engine in my 85 4runner and swapped it with one from an 87 or 88 4runner. The 85 needed a rebuild and I don't have the energy or space to commit to that.

I have a problem though. I got all the wires and vacuum connected and tried to crank it for the first time today. It doesn't seem to want to start. If I crank it it will run for a half a second or so then immediately die. Then if I keep cranking it doesn't want to start.

The cold start injector had fuel pressure, I loosened the banjo and it sprayed gas. This means the fuel rail also has pressure, cause the cold start injector is fed directly from the rail.

I'm wondering if the cold start was giving enough gas for a good 1 to .5 second run before it died because the injectors may not be doing their thing? Or could this be a vacuum issue? Theres a probability that I've hammed up the vacuum lines a bit too. What do you guys think? WHat should I start looking for?

Oh and does anyone have vacuum diagrams for 85 or 87 22R E engines?

Mister Willie

wrnchplr

First off did the replacment motor run before the swap?
2. I know this sounds like a no brainer but I in my younger years had a issue like this, it took days before I found the spark plug wires at the DIZZY end were 1234 not 1342. CHECK THE TIMING
3. make sure the plastic tube from the T-body to the air box is on. it wont run with out it.
4. move the dizzy while a buddy tries to start it.

DeathCougar

iTrader: (23)

Did you use the harness from your 4runner on the donor engine?

Did you double check everything to make sure its all hooked up?

Mister Willie

The engine did run before we swapped it. Both did actually but the one I pulled out needs to be rebuilt.

The airbox is all complete. There is a clicking noise coming from the little electrical box right above the air filter whenever the engine is cranked.

I used the entire harness from the 85. Everything plugged up just fine. If by chance I had mixed up the wiring on the injectors could that cause a problem like this?

wrnchplr

I don't know how you could hook the injectors up wrong and the wires are only so long..... I am still going with a timing issue. I do know that there are 2 different styles of injectors that Toyota used. the only way I can discripe the differance is one has only 1 hole for gas to come out of and the other has 2 holes. if you used the old wire harrness there there is a chance it is not the correct one. you can check the part number on the side of the inj. with the old one.

the clicking noise in the air box is why I am thinking it is a timing issue, that is the same thing that happened to mine.


good luck

Mister Willie

Well I don't really know if it's timing because if you try to start it, it will run fine for a second or two and it sounds great, then it quits. If we keep feeding it starting fluid, it keeps running. It seems like it's not getting the fuel it needs. It's very possible about the injectors being different models, I'll check that tomorrow. I sure hope thats either it, or not it. I don't really feel like changing all of them

abecedarian

the engines themselves arent different between the years. so exchanging the long-blocks shouldn't cause a problem.
how much of the late engine ended up in your 85?

Mister Willie

The entire thing. I'm not pulling a head to swap that, what a pain! if I have to, I'll be swapping injectors tomorrow, or redoing all electric and vacuum.

wrnchplr

the head and all the other stuff is all mostly the same. you said it will stay running as long as you feed it starting fluid. that means there is a fuel issue. I would start by checking the fuse's then check the vac. lines for the fuel system. there is one on the fuel pressure regulator that if not hooked up correctly will cause to much fuel and make the motor stall. also check the wire connection on the mass air flow that's the piece on top of the air box.

also with the swap was it a complete motor or did you have to tear them down to change the wire harness???? there might be a issue with the computer...

Mister Willie

I pulled every wire off of the 85's engine and left the harness together. I labeled every wire that came off the engine too and never removed the harness from the computer. When I put it back together, every wire went back where it should have. I didn't get a chance to yet but tomorrow I should be able to check part #'s for the injectors and I've got some vacuum diagrams too, so I'll be redoing all of that.

HOOKED

you canget alot of pics on google if not i can takes pics of mine.let me I can take more pics for your locations

http://www.jaroca.com/4RUNNER/Hooked_4runner.htm

87 4-Runner 4X4
New Engine
New Clutch
2 Inch Body lift
Silicone Lines
Stereo Speakers
Switches Under Stereo
Hellas Fog Lights Clear

Mister Willie

I pulled every wire off of the 85's engine and left the harness together. I labeled every wire that came off the engine too and never removed the harness from the computer. When I put it back together, every wire went back where it should have. I didn't get a chance to yet but tomorrow I should be able to check part #'s for the injectors and I've got some vacuum diagrams too, so I'll be redoing all of that.

Mister Willie

Got it! Thanks for the help gents. Just as I figured, it was something very very simple(I'm not telling, it's embarrassing). Although with the vac. diagrams I was able to eliminate some useless clutter.

ozziesironmanoffroad

let me guess... it was out of gas.

myyota

You need to use the intake and all of the sensors from the 87 engine on the 85 engine, everything should should swap over, and then it should start and run.

Mister Willie

actually, I was putting an 87 engine in an 85 truck. I didn't need to use the intake or any other extraneous parts except the little curved piece with an arm and a spring that the throttle cable pulls on to push open the throttle. The rest of it is all 87.

The problem, I didn't want to admit.. was one of the igniter wires wasn't making full contact in the plug. I had broken the plug and tried to put it together but I didn't have the terminals set in far enough.