SC's 1989 Jeep Comanche Build - JeepForum.com

 
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post #1 of 12 Old 05-29-2016, 05:54 PM Thread Starter
SCFishinGuy
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1989 MJ Comanche 
 
Join Date: Dec 2006
Location: Blackville, SC
Posts: 100
SC's 1989 Jeep Comanche Build

I've wanted a Comanche for a long time and I've finally got one. A mostly rust free, 4.0L, RWD, automatic longbed. For $350 at that!

She runs, but supposedly has a cracked block.







Completely rust free save for the floor pans. Typical Comanche rust, very treatable.







And, to kick things up a notch - an organ donor.







It's a 92 Jeep Cherokee Sport, 4wd, auto. Came with all parts necessary to convert the Comanche to 4WD, a new cylinder head, ported 99+ intake, new header, 3 row aluminum radiator and triple electric fan conversion, custom grind Comp Cam, and a $120 set of floor mats. All of this for $700.

The problem is that it has a bottom end noise, so I picked up a Jasper rebuilt 4.0 HO engine with 20k miles on it for $400. Looks brand new inside. Plans are to use the new head, intake, cam, and header off of the Cherokee and add new timing set, lifters, head gasket, etc.

Updates to follow once I have time to actually work on it.


89 Comanche Pioneer 4.0
02 Grand Cherokee 4.7-Sold
89 Jeep Wagoneer-Sold
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post #2 of 12 Old 05-29-2016, 05:56 PM Thread Starter
SCFishinGuy
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1989 MJ Comanche 
 
Join Date: Dec 2006
Location: Blackville, SC
Posts: 100
Donor's in the shop.



Couple hours of teardown.




Donor's in the shop.



Couple hours of teardown.



89 Comanche Pioneer 4.0
02 Grand Cherokee 4.7-Sold
89 Jeep Wagoneer-Sold
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post #3 of 12 Old 05-29-2016, 09:53 PM
FairlanePhil
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1999 XJ Cherokee 
 
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Location: Toledo Ohio
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"rust" lol!

Awesome project. Looking forward to seeing where this goes

Current: 99XJ 6.5 lift-Bought 2015
Sold: Patriot Blue 00 XJ.
'sploded: 01 stock-0331 head victim
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post #4 of 12 Old 05-30-2016, 08:54 PM Thread Starter
SCFishinGuy
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1989 MJ Comanche 
 
Join Date: Dec 2006
Location: Blackville, SC
Posts: 100
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,

89 Comanche Pioneer 4.0
02 Grand Cherokee 4.7-Sold
89 Jeep Wagoneer-Sold
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post #5 of 12 Old 06-04-2016, 11:48 PM Thread Starter
SCFishinGuy
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1989 MJ Comanche 
 
Join Date: Dec 2006
Location: Blackville, SC
Posts: 100
Engine out.





Parts pile



"Patched" radiator





Interior stripped




Farewell, Renix



And none too soon.



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


89 Comanche Pioneer 4.0
02 Grand Cherokee 4.7-Sold
89 Jeep Wagoneer-Sold
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post #6 of 12 Old 06-06-2016, 04:37 PM
DNFJ
WANNABE DESERT RAT
 
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2000 XJ Cherokee 
 
Join Date: Dec 2011
Location: Pittsburgh
Posts: 4,396
97 + clip swap?

Project ROLLplay
'00 XJ Locked on 35s

Previous:
'00 TJ 2" on 33" Grabbers
'00 XJ 6.5" on 35" KM2s
'96 ZJ 2" on 31" Baja Claws
'93 ZJ - Stock, Totaled
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post #7 of 12 Old 06-11-2016, 06:47 AM Thread Starter
SCFishinGuy
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1989 MJ Comanche 
 
Join Date: Dec 2006
Location: Blackville, SC
Posts: 100
Quote:
Originally Posted by DNFJ View Post
97 + clip swap?
Not really planning to, I just pulled everything to make for more access. Installing my 4.5" Zone lift now.

Now if I come across a Waggy front clip...

89 Comanche Pioneer 4.0
02 Grand Cherokee 4.7-Sold
89 Jeep Wagoneer-Sold
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post #8 of 12 Old 06-11-2016, 06:57 AM Thread Starter
SCFishinGuy
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1989 MJ Comanche 
 
Join Date: Dec 2006
Location: Blackville, SC
Posts: 100
Front axle robbed.


And transplanted.



Now if I can get these control arms bolted up.

89 Comanche Pioneer 4.0
02 Grand Cherokee 4.7-Sold
89 Jeep Wagoneer-Sold
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post #9 of 12 Old 06-11-2016, 12:41 PM Thread Starter
SCFishinGuy
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1989 MJ Comanche 
 
Join Date: Dec 2006
Location: Blackville, SC
Posts: 100
Front's done. Got that squat like all the Chevys around here.


89 Comanche Pioneer 4.0
02 Grand Cherokee 4.7-Sold
89 Jeep Wagoneer-Sold
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post #10 of 12 Old 06-19-2016, 07:33 AM Thread Starter
SCFishinGuy
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1989 MJ Comanche 
 
Join Date: Dec 2006
Location: Blackville, SC
Posts: 100
Finished the rear lift last night. Went easier than expected other than the shackle bolts.

89 Comanche Pioneer 4.0
02 Grand Cherokee 4.7-Sold
89 Jeep Wagoneer-Sold
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post #11 of 12 Old 06-19-2016, 11:14 AM
Motorcharge
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Posts: 13,706
Rears on XJs and MJ are stupid simple/quick unless those shacklebolts end up being seized. I got lucky on my MJ and didn't have to mess with any seized ones. I think the whole rear took about 20 minutes.


Quote:
Originally Posted by Ron Swanson
There is no such thing as bad weather. Only inadequate clothing and transportation.
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post #12 of 12 Old 06-21-2016, 12:31 PM Thread Starter
SCFishinGuy
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1989 MJ Comanche 
 
Join Date: Dec 2006
Location: Blackville, SC
Posts: 100


Rears sitting up now. Still a lot of weight in the bed and none up front, so hopefully it'll level out. Just have to order a track bar and a few other goodies.

89 Comanche Pioneer 4.0
02 Grand Cherokee 4.7-Sold
89 Jeep Wagoneer-Sold
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