'94 motor into '85 yota

[Boonie Buster]

So my dad picked up a motor to put in his truck, he was told it would plug right in, needless to say there are wires all over in the garage i'm not an expert on wiring or toyotas for that matter, but what needs to happen for a '94 4 cyl. to go into a '84 with the same motor??? apparently the computer doesn't plug in and a bunch of other wires don't plug in either anyone ever done this swap? cus it's not a plug and play deal like it was supposed to be:booo: so now my dads been without a truck to drive to work for almost a week now

 

[cisco]

When doing this, the easiest way is to just swap the long block. There is too much different stuff.

 

[cisco]

You will prob also have to mess with studs on the exhuast side of the head. Change them around and stuff.

 

[Boonie Buster]

You will prob also have to mess with studs on the exhuast side of the head. Change them around and stuff.

sorry i guess i didnt explain well, he took the old '85 out completely and put a complete '94 in and is now having problems with the stuff from the '84 plugging into the '94 motor

 

[Boonie Buster]

When doing this, the easiest way is to just swap the long block. There is too much different stuff.

so just keep the upper half the same? (head, intake, etc.)?

 

[cisco]

keep the head on the block, just swap intake, exhaust, emissions, maybe motor mounts, alternator, all brackets pulleys pumps, and distributor if possible.

 

[cisco]

you might also run into some fun when go to hook the throttle linkage back up. The brackets that go onto to the valve cover may not line up. You may have to swap valve covers if possible.

I usually do all the swapping when both motors are sitting side by side out on the floor. Up to you wheather you want to pull it back out, or do the fiddle cramp reach.

 

[Boonie Buster]

you might also run into some fun when go to hook the throttle linkage back up. The brackets that go onto to the valve cover may not line up. You may have to swap valve covers if possible.

I usually do all the swapping when both motors are sitting side by side out on the floor. Up to you wheather you want to pull it back out, or do the fiddle cramp reach.

DAMMIT!!!!!!


thanks for the info cisco

 

[cisco]

someone else may have an easier solution. I just like swapping everything so there are no splices and everything remains as stock as possible.

 

[Mark m.]

What Cisco said. Done it a bunch of times.

 

[84Toyota4x4]

You know Aaron, I thought of this after we talked online too later that night. Thats the way that we used to do the swaps in the shop all the time so that we can retain as much of the original parts as possible.

If Im following this right, all he really has to do at this point is pull the manifolds off the motor in the truck, swap them with the manifolds from the original engine, along with the accessories (alt,dizzy and crap), then put the ones from the 85 engine onto the stripped down 94 block. He might only have to pull the intake if the exhaust is already good to go, just make sure the )2 sensor plugs in, and if it doesnt, just swap em.

Of course, he also has to put the 85 harness back in the truck along with the computer and all that (assuming he pulled them out like I think you said).

If it was me that was doing this, I would take this as a good opportunity to replace some gaskets along the way as well since youre taking so much on and off, you might as well freshen it up a little along the way.

I think if he does all that, he should be ok. Just leave all that 94 stuff in a pile so I can come get it later :haha:

By the way, if your Dad is busy or whatever, Id be willing to come work on it if you want, I'm kind of out of a job again, and I might as well have something to do, haha. Either that or I can just come help. Either way, let me know.

~T.J.