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Jeep Comanche MJ (1985 - 1992) Jeep's Cherokee-based compact pickup technical forum.

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  #1  
Old May 8th, 2016, 16:01
scguy27 scguy27 is offline
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89 Comanche DD Build

Just picked up my first MJ, an 89. 4.0, AW4, RWD longbed.











She's a little rough, but runs and drives. For a little bit, anyways. Overheating, had a head gasket done and that didn't fix it, PO thinks it has a cracked block. For $350, I can't complain.

Plans:
4WD swap, HO engine swap. lift in the area of 4-6", just a clean DD.
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  #2  
Old May 8th, 2016, 16:11
scguy27 scguy27 is offline
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Re: 89 Comanche DD Build

Carpet and seats pulled tonight. More rust than I thought.*

Being in SC I have very little experience with fixing rust, but this looks minor enough just to patch and not replace the entire floor pan right? What should be my course of action?





Poking with a screwdriver, this is all the holes I could find.


Seat bolster bent to crap...

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  #3  
Old May 8th, 2016, 16:13
scguy27 scguy27 is offline
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Re: 89 Comanche DD Build





Here is my organ donor. 92 XJ Sport, 4WD, NP231, AW4. D35/D30 3.55.

It has a new cylinder head with 5k miles on it, new fuel pump, distributor, starter, spark plugs, cap and rotor, Comp Cams custom grind cam, lifters, new header. It has the 01 intake manifold that has been port matched and coated with gold heat wrap with ZJ power steering pump (i think)





I also like the 3 row aluminum radiator and triple electric fan setup.


Not bad for $700.
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  #4  
Old May 11th, 2016, 17:36
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831_xj 831_xj is offline
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Re: 89 Comanche DD Build

Looks like a clean find! I love those early bucket seats
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  #5  
Old May 15th, 2016, 23:58
cheapcherokee93 cheapcherokee93 is offline
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Re: 89 Comanche DD Build

another spinnaker blue MJ! nice find

mine was originally from PA and literally had no floor on the driver side. Those rust holes shouldnt be too bad to fix
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  #6  
Old May 29th, 2016, 17:43
scguy27 scguy27 is offline
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Re: 89 Comanche DD Build

Donor's in the shop.



Couple hours of teardown.


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  #7  
Old May 29th, 2016, 17:44
scguy27 scguy27 is offline
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Re: 89 Comanche DD Build

Donor engine stripped of head and cam.


Cam and new timing chain installed



Oil pan gasket and paint prep on the 92 Jasper HO engine that will be used

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  #8  
Old May 30th, 2016, 21:05
scguy27 scguy27 is offline
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Re: 89 Comanche DD Build

Put in a few hours today.

Head on, new lifters in. New oil pan gasket and timing cover gasket, crank seal.



Primed.



And painted. I originally wanted to go with a different color, but black just fits everything.



This engine is a Jasper Reman with 26k miles out of a 92 Jeep Comanche. Current setup is 4.0 HO block bored .060 over, 7120 HO Head (mostly new, only 5k miles on it from Dover Heads in Atlanta), 01 intake manifold, Comp Cams custom grind (mild torque cam), and an aftermarket header of unknown origins,
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  #9  
Old June 1st, 2016, 23:04
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hot_rod_hooligans hot_rod_hooligans is offline
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Re: 89 Comanche DD Build

Quote:
Originally Posted by scguy27 View Post
Comp Cams custom grind cam,


I know that cam
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  #10  
Old June 2nd, 2016, 04:58
scguy27 scguy27 is offline
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Re: 89 Comanche DD Build

Quote:
Originally Posted by hot_rod_hooligans View Post
I know that cam
How do you like it? Notice much difference over stock?
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  #11  
Old June 2nd, 2016, 21:08
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hot_rod_hooligans hot_rod_hooligans is offline
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Re: 89 Comanche DD Build

Mines still sitting on my shelf, a sad side effect of being ADD, I bounce around from project to project a lot, some day I'll get back to that engine build.....
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  #12  
Old June 3rd, 2016, 06:21
scguy27 scguy27 is offline
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Re: 89 Comanche DD Build

I'm trying to decide on a lift. I want to run somewhere around 3-5". I'm torn between piecing a lift together or just getting the Zone 4.5"kit and a track bar. I plan on swapping the D35 out sometime down the road, so the add a leaf only needs to last till then when I go SOA.
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  #13  
Old June 4th, 2016, 23:49
scguy27 scguy27 is offline
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Re: 89 Comanche DD Build

Engine out.





Parts pile



"Patched" radiator





Interior stripped




Farewell, Renix



And none too soon.



And back outside. Not bad for a day's work.

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  #14  
Old June 11th, 2016, 06:59
scguy27 scguy27 is offline
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Re: 89 Comanche DD Build

Front axle robbed.


And transplanted.



Now if I can get these control arms bolted up.
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  #15  
Old June 11th, 2016, 12:41
scguy27 scguy27 is offline
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Re: 89 Comanche DD Build

Front's done. Got that squat like all the Chevys around here.

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