89 4Runner Rescue

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Mar 17, 2019
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Didnt realize the connectors on the harness in the 4runner and the harness on the 91 motor are different. Do I need to swap harnesses, or is there a better way? The one in the truck is pretty hammered.

Thanks in advance.

89 4Runner:

7BA6EDE7-7888-4E24-92C5-AA5A36546BD2.jpeg


Motor from 91 pickup:
78B44BB9-3649-4B6A-8FB0-6E5D621506A0.jpeg
 
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Almost have the old motor out, just need to remove the bumper and I should have it.

In what I’ve read so far, I’m going to move all of the sensors and harness from the old motor to the new, as well as swap injectors.

I thought it would be plug and play but the body harness from the 4runner isn’t compatible w the harness on the motor. Still trying to figure out if the difference is due to the year or bc its a 4runner vs pickup.
 
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Got to do the front seal and bearing retainer plate on the front of the trans today.

Before:
6E6C884A-1FC7-455A-A0B1-D5A152343C4E.jpeg


361C4B2E-EC60-4B99-A21D-ADB4391BFAE1.jpeg
925EFAA0-3A70-4405-822A-9D5FBEA62252.jpeg
E4FABE8C-2DE1-467A-9E03-7B563F6FAF05.jpeg



Pretty happy with the outcome. There was a gasket installed by someone, but I reassembled w FIPG 103. Got the T case input shaft seal done as well. Waiting on PTFE thread sealant to put them back together.


54A9262D-CC63-4A43-AF34-4B234D456632.jpeg
 
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I think I am going to go ahead and do all the gaskets on the t case while I have it out. I'll work on the harness swap and getting the old tranny out while I wait on the gaskets.

I'm considering returning the Aisin clutch kit and going OEM, and I'm interested in opinions. Anyone care to weigh in? Thanks in advance.
 

ntsqd

technerd
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My '84 came to me with a Centerforce II in it. When I had the engine rebuilt I put another one in. The only downside was that it eventually cracked the t/o bearing fork at the pivot socket. I am blaming the higher force of that pressure plate, but I don't really know that it was the cause. Could have just been age or a faulty part that took a long time to fail (~150k).

In any case, I never doubted my decision to use that clutch. It was NOT a high pedal effort clutch. Even my 5' even, 100 lbs wife had no trouble with it.
 
Joined
Mar 17, 2019
Messages
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Location
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My '84 came to me with a Centerforce II in it. When I had the engine rebuilt I put another one in. The only downside was that it eventually cracked the t/o bearing fork at the pivot socket. I am blaming the higher force of that pressure plate, but I don't really know that it was the cause. Could have just been age or a faulty part that took a long time to fail (~150k).

In any case, I never doubted my decision to use that clutch. It was NOT a high pedal effort clutch. Even my 5' even, 100 lbs wife had no trouble with it.
Those look like super nice kits. I’ll check those out, they aren’t that much more.
 
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I was assuming the aisin kit was a combination of rubber and metal springs. This one is all metal springs, maybe its worth keeping.

E9396D85-0CCC-467D-94D1-82F6FFF15E4B.jpeg
 

pappy

photosynthesizing
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I was assuming the aisin kit was a combination of rubber and metal springs. This one is all metal springs, maybe its worth keeping.

View attachment 3022669

Well, ya, quality stuff. It's all I run. Never saw the need for one for the boutique clutche$$$$.
 

ntsqd

technerd
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What are those blue things?

Centerforce PP's are made by Luk, it's really only the discs that are different.
 
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What are those blue things?

Centerforce PP's are made by Luk, it's really only the discs that are different.
Yeah I guess they are a hybrid spring. I was just thinking it was like the ones that look like bushings.
 
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Today was able to make some progress after spending the last few weeks collecting parts. Intake and valve cover are at a metal cleaner nearby.

Crank bolt come off pretty easy.

7C448F67-D810-4829-BF68-3883B35CE3E7.jpeg


Motor still had original plastic guides, some parts of which are in the oil pan. The straight guide was broken in the middle and around the top bolt.
6426B553-E30C-497C-9286-E688AD0BA4EF.jpeg







Also pulled the oil pan to re-do the fipg.
EF66CB98-E609-4A22-AB03-A39F61563F44.jpeg



Installed oem chain and tensioner, OSK timing gears, and LC Engineering guides that came w the truck.
52B7F4D1-0D73-4ED0-8254-493AD8A0EF48.jpeg



Its coming along nicely, hopefully I can get it driving by august.
 
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Does anyone have any experience w the LCE pro oil pump? I have one that came w the truck. Its an Aisin LCE enhances for more oil pressure and volume. Also have a genuine oil pump. Not sure which to install.
 
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Got all the seals on the t case and trans done and everything back together.
F8206DC9-2F26-4CF9-B2A3-45F46B5436A2.jpeg


Also installed the timing cover and oil pump.
2F6F3FED-3036-4332-B7E0-9D6AB3BC94EB.jpeg
 

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