3FE differences 1988-1992

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MrMoose

MrMoose

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May 28, 2013
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Location
Bavaria
Looking at picking up a short block in my area. But it will be going into my FJ80.

My main questions are if there are any differences in accessory mounting that I need to be aware of, or any other differences that will make it difficult to put into my 80. Are there any good sources out there that I can use to find any of this out?

The head and all FI components will be coming off my 80 motor if that makes a difference.

Figured since most 3FE owners are in this forum, I'd post here and hope to find some useful info!

Thanks for the help!
 
You should be fine... I recall there might have been some differences in alternator or ac compressor mounting. Search "FJ80" here and you'll find a thread of 80 series 3fe transplants into FJ62's that should have most of your information.

Short story... It's been done one way, then it's certainly possible to go the other way
 
just put a 92 into my 88..here goes...the thermostat housing has different plugs on its senders; use your old one...the passenger side accessory brackets do not mix or cross swap; use your old ac mount, comp, ps mount and pump...a couple other minor differences as well. I think the 80 series injectors flow more go juice than the 62 series injectors, so you may want to swap out fuel metering stuff as well. the dizzy has a different connector on it as well...I have a thread in here somewhere that tried to cover all of these differences...,https://forum.ih8mud.com/threads/fj80-v-fj62-injector-connectors-engine-harness-differences.812590/
and yeah, the flywheel/flexplate bolts for the crank are larger on the fj80 than the fj62; you'll need to source the fj62 flexplate and bolts. I believe the motor mounts are different as well- might just be the passenger side...hth
 
LAMBCRUSHER said:
just put a 92 into my 88..here goes...the thermostat housing has different plugs on its senders; use your old one...the passenger side accessory brackets do not mix or cross swap; use your old ac mount, comp, ps mount and pump...a couple other minor differences as well. I think the 80 series injectors flow more go juice than the 62 series injectors, so you may want to swap out fuel metering stuff as well. the dizzy has a different connector on it as well...I have a thread in here somewhere that tried to cover all of these differences...,https://forum.ih8mud.com/threads/fj80-v-fj62-injector-connectors-engine-harness-differences.812590/
and yeah, the flywheel/flexplate bolts for the crank are larger on the fj80 than the fj62; you'll need to source the fj62 flexplate and bolts. I believe the motor mounts are different as well- might just be the passenger side...hth
Click to expand...

Thanks for the help. Some responses to some of the things you brought up:

- Thermostat housing: Was not tracking this at all. Is this something I can swap over from my current 3FE? The entire housing?
- Injectors will be rebuilt from my current 3FE already in the 80 since this is just a short block I'll be getting. Head will be rebuilt from my current 3FE as well. Shouldn't need to worry about anything as far as fuel management (this short block is also bored .020 as well)
- Dizzy carried over from 3FE already in the 80. Same exact dizzy from everything I've read.
- Flex Plate/Bolts: I've read that there was an early and late flex plate. Motor was (assuming) rebuilt from the 1990 FJ62 it came out of. The part numbers for the flex plate match for both 1990 and 1992 model years. Guess the switch was due to a larger pilot crank (I've been up all night, so I don't think thats the right term....) in the later blocks. Mine SHOULD bolt up from the 80, but we will see if that holds true.

As for the motor mounts, are they different as in different part numbers, or different on the block themselves? Assuming different part numbers since the frames are different, but the mounts on the block themselves are identical. Once again, I can swap this over if need be from the motor already in my 80.

What do you mean regarding the passenger side accessory brackets do not mix or cross swap? The mounts will not work from the motor already in the 80? or I cannot mix and match the mounts from both series? I've seen two different diagrams for belt routing on FJ62 3FEs. One had a single Idler pulley, the other had 2. My 80 has two, (and hoping to keep that since I have new belts that account for the desmog). If you can expand on that a bit more, I'd greatly appreciate it!

I've been up all night researching this goodness since I've been on 24 hr duty. I'm feeling pretty confident in going this route, and realize I might run into just a few snags.

And if there's anything that sounds hazy on here, I've been up far too long! Feel free to correct me!

I appreciate all the help! Feel free to add more!
 
I have transplanted a 3FE into an FJ60 using an 80 series and 62 series 3FE, and I have transplanted a 62 series 3FE into an 80. I will try and answer your questions:

- Thermostat housing: Was not tracking this at all. Is this something I can swap over from my current 3FE? The entire housing?
You do not need the whole housing just the VSVs that screw into the housing since the connectors are different.

- Injectors will be rebuilt from my current 3FE already in the 80 since this is just a short block I'll be getting. Head will be rebuilt from my current 3FE as well. Shouldn't need to worry about anything as far as fuel management (this short block is also bored .020 as well)
- Dizzy carried over from 3FE already in the 80. Same exact dizzy from everything I've read.
I didn't think the dizzy has the same wiring harness connector but after doing some reading I think it does.

- Flex Plate/Bolts: I've read that there was an early and late flex plate. Motor was (assuming) rebuilt from the 1990 FJ62 it came out of. The part numbers for the flex plate match for both 1990 and 1992 model years. Guess the switch was due to a larger pilot crank (I've been up all night, so I don't think thats the right term....) in the later blocks. Mine SHOULD bolt up from the 80, but we will see if that holds true.
The early 3FE had the smaller pattern flex plate, I think the later 3FE is the same as the 80 series 3FE.

As for the motor mounts, are they different as in different part numbers, or different on the block themselves? Assuming different part numbers since the frames are different, but the mounts on the block themselves are identical. Once again, I can swap this over if need be from the motor already in my 80.
They are different. You will need to swap over all mounts and accessories from your 80 series block.

What do you mean regarding the passenger side accessory brackets do not mix or cross swap? The mounts will not work from the motor already in the 80? or I cannot mix and match the mounts from both series? I've seen two different diagrams for belt routing on FJ62 3FEs. One had a single Idler pulley, the other had 2. My 80 has two, (and hoping to keep that since I have new belts that account for the desmog). If you can expand on that a bit more, I'd greatly appreciate it!
I had to switch over the A/C compressor, power steering pump, alternator and air pump from the 80 series 3FE for the 62 series 3FE to work in the 80. The A/C bracket in the 62 3fe is part of the passenger motor mount which I think is different in the 80 series. I think all accessories need to come from your 80 series block.

I've been up all night researching this goodness since I've been on 24 hr duty. I'm feeling pretty confident in going this route, and realize I might run into just a few snags.
And if there's anything that sounds hazy on here, I've been up far too long! Feel free to correct me!
I appreciate all the help! Feel free to add more![/QUOTE]

A couple other things to consider:

-The 80 series 3FE block has threaded holes to mount the tranny bracket which the 62 series block and tranny do not have. I am pretty sure the 62 series block does not but you will need to verify that on the later 62 block you have. Just look at your 80 series block and you will see the 2 threaded hole towards the back of the block, and you will also see the brackets that bolt to the block and tranny.

-The biggest potential problem is that the oil pans, oil pump pick-ups and possibly the oil pumps are different between 80 and 62 series 3FEs. I was planning on lifting it so I didn't care too much. The 80 series pan has 2 steps in it to clear the arm on the 80 series front axle (I think that is the reason for the step) while the 62 series oil pan only has the one step. This could be a problem.

-I have the 80 series with the 62 series 3FE in my back yard, and I have a 80 series 3FE sitting in my garage. I will snap some pictures of the holes and what not when I get home from work.
I'll post up anything else I can think of, good luck!
 
Thank you so much Aseif! I'll be sure to check for those things when I look at the block.
 
2014-12-30 18.38.24.jpg


This is a FJ-80 3FE. Notice the 2 steps in the oil pan and the two bolts and bolt holes towards the back of the engine where oil pan meets the block.
2014-12-30 18.40.25.jpg



Here is a blurry picture of a FJ-62 3FE installed in an FJ-80. Notice the bracket that is not bolted in, it is attached using the two bolt hols and bolts referenced above.

2014-12-31 08.32.57.jpg
This is the FJ-62 3FE oil pan. Notice there is no step on the bottom. I didn't have time to snap a picture of the clearance between this oil pan and the FJ-80 front axle and linkages but unless you are going to lift the 80 I think it could be a problem. I will snap that picture and post it. I never got the 80 with the 62 3FE started because I bought a FJ-45 so now this is a parts cruiser for me.
 
So the entire engine has been used from 62 to 80 and vice versa it seems, has anyone just used an 80 head in a 62?
 
can't see why it wouldn't work.
 
Aseif007 said:
I have transplanted a 3FE into an FJ60 using an 80 series and 62 series 3FE, and I have transplanted a 62 series 3FE into an 80. I will try and answer your questions:

- Thermostat housing: Was not tracking this at all. Is this something I can swap over from my current 3FE? The entire housing?
You do not need the whole housing just the VSVs that screw into the housing since the connectors are different.

- Injectors will be rebuilt from my current 3FE already in the 80 since this is just a short block I'll be getting. Head will be rebuilt from my current 3FE as well. Shouldn't need to worry about anything as far as fuel management (this short block is also bored .020 as well)
- Dizzy carried over from 3FE already in the 80. Same exact dizzy from everything I've read.
I didn't think the dizzy has the same wiring harness connector but after doing some reading I think it does.

- Flex Plate/Bolts: I've read that there was an early and late flex plate. Motor was (assuming) rebuilt from the 1990 FJ62 it came out of. The part numbers for the flex plate match for both 1990 and 1992 model years. Guess the switch was due to a larger pilot crank (I've been up all night, so I don't think thats the right term....) in the later blocks. Mine SHOULD bolt up from the 80, but we will see if that holds true.
The early 3FE had the smaller pattern flex plate, I think the later 3FE is the same as the 80 series 3FE.

As for the motor mounts, are they different as in different part numbers, or different on the block themselves? Assuming different part numbers since the frames are different, but the mounts on the block themselves are identical. Once again, I can swap this over if need be from the motor already in my 80.
They are different. You will need to swap over all mounts and accessories from your 80 series block.

What do you mean regarding the passenger side accessory brackets do not mix or cross swap? The mounts will not work from the motor already in the 80? or I cannot mix and match the mounts from both series? I've seen two different diagrams for belt routing on FJ62 3FEs. One had a single Idler pulley, the other had 2. My 80 has two, (and hoping to keep that since I have new belts that account for the desmog). If you can expand on that a bit more, I'd greatly appreciate it!
I had to switch over the A/C compressor, power steering pump, alternator and air pump from the 80 series 3FE for the 62 series 3FE to work in the 80. The A/C bracket in the 62 3fe is part of the passenger motor mount which I think is different in the 80 series. I think all accessories need to come from your 80 series block.

I've been up all night researching this goodness since I've been on 24 hr duty. I'm feeling pretty confident in going this route, and realize I might run into just a few snags.
And if there's anything that sounds hazy on here, I've been up far too long! Feel free to correct me!
I appreciate all the help! Feel free to add more!
Click to expand...

A couple other things to consider:

-The 80 series 3FE block has threaded holes to mount the tranny bracket which the 62 series block and tranny do not have. I am pretty sure the 62 series block does not but you will need to verify that on the later 62 block you have. Just look at your 80 series block and you will see the 2 threaded hole towards the back of the block, and you will also see the brackets that bolt to the block and tranny.

-The biggest potential problem is that the oil pans, oil pump pick-ups and possibly the oil pumps are different between 80 and 62 series 3FEs. I was planning on lifting it so I didn't care too much. The 80 series pan has 2 steps in it to clear the arm on the 80 series front axle (I think that is the reason for the step) while the 62 series oil pan only has the one step. This could be a problem.

-I have the 80 series with the 62 series 3FE in my back yard, and I have a 80 series 3FE sitting in my garage. I will snap some pictures of the holes and what not when I get home from work.
I'll post up anything else I can think of, good luck!
[/QUOTE]

Hey Andrew , glad to see you are still rocking the 3FE!! Good on ya.
 
overhanger said:
A couple other things to consider:

-The 80 series 3FE block has threaded holes to mount the tranny bracket which the 62 series block and tranny do not have. I am pretty sure the 62 series block does not but you will need to verify that on the later 62 block you have. Just look at your 80 series block and you will see the 2 threaded hole towards the back of the block, and you will also see the brackets that bolt to the block and tranny.

-The biggest potential problem is that the oil pans, oil pump pick-ups and possibly the oil pumps are different between 80 and 62 series 3FEs. I was planning on lifting it so I didn't care too much. The 80 series pan has 2 steps in it to clear the arm on the 80 series front axle (I think that is the reason for the step) while the 62 series oil pan only has the one step. This could be a problem.

-I have the 80 series with the 62 series 3FE in my back yard, and I have a 80 series 3FE sitting in my garage. I will snap some pictures of the holes and what not when I get home from work.
I'll post up anything else I can think of, good luck!
Click to expand...

Hey Andrew , glad to see you are still rocking the 3FE!! Good on ya.[/QUOTE]

Hey Steve. Yes I am still rocking the 3FE. I plan on putting one into a FJ45 next.
 
Godwin said:
Adding this in - casting number 3FE head from FJ80 61080.
Click to expand...


Correct.

11101-61080 is the correct Toyota head PN (when they were available).

As a historical note, when I was packing boxes for Dan back in the day at American Toyota, he sold a new 3F-E head to a client when they were still available. This document was in the box that the head came in: the casting information tag. Notice the Toyota Industries stamp at the top and date code.

IMG_7325.JPG


And the Toyota Industries logo from their website (they would do the castings for things like 2F/3F-E heads, 1FZ's, and almost all of the classic Toyota diesels):

images.jpg
 
No modifications at all. Just had it rebuilt, and put it on the short block.

The only issues I had with a 62 block in an 80 was the oil pan and oil pickup. Both of which I swapped over. Everything else was exactly the same.
 
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