Jump to content

89’ Pioneer MJ Barn Find


Recommended Posts

Here is the 89’ Pioneer I picked up for $500 in July. I’ve known about this truck for years but it has taken this long for the family to agree to sell it. I bought it from the original owners son. This truck has been parked for several years (inside a barn). It was parked because it was running rough lol. After it got parked a family of rats decided to move in judging by the nest I found behind the radio.   Here it is after I pulled it out of the barn with my dad and the day it was brought home. The truck would start up on starter fluid but that’s it. 
 

this is a late 89’ truck 4wd 5 speed AX15 4.0. 
 

clutch was stuck, didn’t run off gas tank and the brake had rusted up so it didn’t roll well lol. 

94F9DAA9-411F-468F-9E09-5AB281B48F67.jpeg

D9F26F5B-CDF8-4174-8DA5-FF4910530D8B.jpeg

F35426A0-4C60-4CE2-BD1A-0486083B3E46.jpeg

0EC4A602-6F53-4144-8855-1CB541CCCF20.jpeg

803B7DCC-A533-43A5-9D3F-3BB9424397D2.jpeg

B374F33E-B086-4550-858A-B6116733FB39.jpeg

C69943B8-9790-4482-A98B-EA2EB83E3098.jpeg

Link to comment
Share on other sites

  • Replies 88
  • Created
  • Last Reply

Top Posters In This Topic

Since that day I dropped the tank to find what I expected, gas tank was rusted beyond repair and the fuel sending unit was in the same shape. I purchased a new tank and MTS sending unit and cleaned the fuel lines while I was at it. Slapped the tank and a new fuel filter in and boom she cranked up. Unfortunately that led to a complete fuel rail geyser of gas. Leaks from all the connections and fuel pressure regulator. But hey at least it cranked. 
 

with a new fuel system in place and upgraded 4 hole injectors it finally cranked and idled for the first time in years. After that it was time to upgrade all the connections and power / ground wires. I grabbed cables from Jeepcables and went to work. Upgraded and cleaned everything all the way to the fuse box (nothing really worked like the blower motor, dash lights, etc). Found the fuse box is corroded like many others but I salvaged it for now. I have a good used one sitting in the shop waiting. 

2B5A183E-8001-4E37-B134-8119FC3B4DC9.jpeg

B8CA4E68-819B-455F-9EEC-4E8E557C662F.jpeg

39678DC2-7D60-4DFC-A5F6-8D62B465D11E.jpeg

68D05D4B-E71E-4EDA-8796-A186D53FFD78.jpeg

Link to comment
Share on other sites

Next up was the cooling system. The coolant looked like rust water so I drained and flushed the block. Added Thermocure to the block with pure water, burped the system and let it idle for a hour or so everyday for a week to circulate / treat the block. Meanwhile I ordered a new thermostat, water pump, fan clutch, idle pulley, serpentine belt, radiator hoses etc. after a week the system was flushed throughly and a new cooling system besides the sealed radiator was installed. I held off installing a new radiator because it was holding coolant fine. I plan to convert to an open system soon but for now I’ll focus money to other areas. Everything buttoned up and it seems to be cooling properly. 

C8430EF4-E83D-4285-93B6-86D8F3DCD012.jpeg

991417D5-5BF3-4086-BA84-45C4F38D9CC4.jpeg

Link to comment
Share on other sites

At this point the truck runs but doesn’t move because the clutch is stuck. My dad cranks it up and let’s it run every couple days for a few minutes got impatient and started working the clutch pedal (their may have been a rubber mallet involved) and magically I get this from my mom while I was at work. So at least it runs and drives haha. 

21F86713-1E64-41A1-ADDC-BBDAB3F47386.jpeg

1CC63FEA-BAC9-4F79-AD55-588BBB3A7CAC.jpeg

BE9DF9A0-C1AB-429B-A1F3-742D1AD5A37E.jpeg

Link to comment
Share on other sites

After this we now had to turn to the brakes. The goal was to drop the booster and MC. Then go around and replace the brake pads / shoes and put in new soft brake lines. So that went about as expected. Brake Booster are a pain to pull for something with just 4 bolts lol. Since I had to pull the driver seat to lay in the cab I went ahead and started the interior strip project at the same time. With the new MC and BB installed I went to knock out the rear brakes first. The rear wheel cylinders were leaking as expected which lead to a wild ride re flaring brake lines. I’m accustomed to old jeeps but this thing has every brake fitting locked in place like no other. I scrapped the hard lines on the rear axle and ran -3AN SS flex lines like I do on my offroad rigs. So after a couple days of reworking hard lines and bleeding air we finally have solid brakes again. The front brakes are next but my back needs a rest after this. 

228FFBEE-A9E5-43D8-B968-8198B95A0A94.jpeg

8A01010C-C7A0-408B-A55D-D8BB6C1B2891.jpeg

7111E370-01E6-4AAB-966D-7D455935AB80.jpeg

11CDBEE4-A056-41D8-8792-9835D2064C5F.jpeg

6934CA2A-6844-48DC-8E99-C65C6653974C.jpeg

Link to comment
Share on other sites

Now with the interior stripped I needed to see what kind of rust we are dealing with. The underside of the body is immaculate. This truck was well cared for but like most jeeps it does leak. I pulled the carpet and found some superficial rust in the pan. Then I got the insulation on the fire wall out of the way. Sadly I found one small 1” diameter hole where the foam holds water. Not a big deal as long as it’s treated properly. I use POR15 on my CJs and with good success as long as you are very careful in prep. I wore wheeled the floors, vacuumed up the mess, degreased the floor and added their metal prep to neutralize the remaining cancer. After that I went over it with their rust coat and finally a black top coat. Since I’m stripping the cab I might as well add sound proof and insulation. I’ve gotten the sound proofing in and hopefully this weekend it will buttoned up. I washed the carpet while I was at it so it smells better lol.

B337D80A-64D0-4B2C-8DDC-EB9E65A773A3.jpeg

D4F44E6E-7249-4184-9A55-008BF68A432C.jpeg

367BA053-0AEC-4FF2-BB2D-D232E70A9672.jpeg

E6810440-F333-46C4-8329-8702409F17DB.jpeg

A7901DFA-7F04-4431-8FF1-E480B652A0F3.jpeg

997C8D03-8182-44C1-950E-5622F7B466BC.jpeg

D33C3F77-E1AC-4F4E-AA0F-425E28692461.jpeg

4637BAAD-F6C9-410A-B8D6-C334B5B96248.jpeg

Link to comment
Share on other sites

1 hour ago, War_Pony89 said:

Man that is a killer find, floors cleaned up nice. I'm finishing sound proofing my cab. Had a two inch hole patched. Buying carpet today. The dynomat looks good.

It’s a very clean truck. I still have a layer of insulation to put over the mat and the roof to knock out. Hopefully it makes difference. 

Link to comment
Share on other sites

34 minutes ago, PocketsEmptied said:

That's a fairly clean truck right there. Fogs look nice.

I'm excited to get it back on the road full time. The paint would be pristine but they let one of their grandsons drive it for a bit before it was parked. He sprayed undercoating on the dark blue paint trying to black it out for some reason. It’s slowly coming off with mineral spirits. 

Link to comment
Share on other sites

1 hour ago, 89 MJ said:

Good looking truck. Sounds like you must be another young guy too. 

Thank you. Not sure about young. I guess it’s all relative haha. I’m 38 and this is the first MJ I’ve messed with. I love old jeeps and have several CJs including the first one I bought when I was 16 many moons ago. The next project is a 46 Willys I bought from a local guy that actually purchased it from my dad when he was 20. One thing at a time though lol. Some of the other toys. We can’t just have one right!?!?!

8B3CDD39-64B6-4915-8C5D-33266D304649.jpeg

497F35D1-A9CD-4D48-8318-BFCAE9373FA3.jpeg

47666E8B-4EFA-44DD-91A0-EC1B1CB2D0E2.jpeg

4E632D88-AF01-452E-9428-3AC8FFDA4461.jpeg

1C110AB6-F667-4A37-9D55-65B106E9AEEC.jpeg

16C3FFD0-B230-4818-9AE0-61718EF8EDD8.jpeg

95B1126E-97BC-4924-BA71-9CF4DDD0F9A6.jpeg

Link to comment
Share on other sites

I guess I should add the plan for this truck. The car enthusiast in me really wants to lift it and throw 35’s on it but I already have two heavily modified jeeps so I think for this guy it will be more practical and nostalgic to keep it as close to bone stock as I can. I wanted to do an updated interior swap but the blue interior kinda takes me back to when I was a kid in this era. I learned to drive in a 83’ Datsun King Cab Truck with blue interior. So I think it will stay bone stock with some minor performance upgrades that add reliability and etc. I will keep the 235/75/15 tire size though. I really love the look at stock ride height. Oh and I will put the flares back on when I’m finished cleaning her up. 

Link to comment
Share on other sites

  • 2 weeks later...

Final piece of the interior just showed up. Core short throw shifter with hurst gear shift. Someone cut my ax15 handle down low and by the time I rebuilt mine and bought a new lever arm I figured I might as well splurge. Also picked up a set of rugged ridge floor liners for a Cherokee. Figured I would see if I can make them fit right. If not I can send them back I guess lol. I run husky or weather tech floor liners in all my jeeps and would really like to have a set in this one too. I guess this weekend I get the interior in! 

5756E009-0ECD-4152-9A3D-BB47B8EBFFE7.jpeg

7ED0B6F9-461E-4EEB-906A-88F370D2CD4B.png

Link to comment
Share on other sites

  • 2 weeks later...

Looks good.   Cleaned up really well.   The rugged ridge floor mats are “decent”. I’ve got a set in my mj.    Mine were curled from being in the box for who knows how long.   
 

I wish mine was a 5 speed but there aren’t to many left in the rust belt around me.

Link to comment
Share on other sites

Y'all left me inspired, ordered my carpet, inner fenders and rugged ridge floor mats today.  Found my leak up front, antenna plug is pushed out, think that is my main leak cause, so green light finishing the interior!  Now just need a nice warm sunny day to lay the carpet,which are in short supply as of late.

Link to comment
Share on other sites

22 hours ago, War_Pony89 said:

Y'all left me inspired, ordered my carpet, inner fenders and rugged ridge floor mats today.  Found my leak up front, antenna plug is pushed out, think that is my main leak cause, so green light finishing the interior!  Now just need a nice warm sunny day to lay the carpet,which are in short supply as of late.

 

 

there are dozens of ways for water to get in.  do make sure you test after plugging the most obvious hole. :L: 

Link to comment
Share on other sites

20 hours ago, Pete M said:

 

 

there are dozens of ways for water to get in.  do make sure you test after plugging the most obvious hole. :L: 

I am in the process of doing the same thing haha.  Mine appears to be firewall area.  I was thinking windshield or air vent but I have poured gallons of water in those areas with no water coming in.  My bad spot is the drivers side.  My next guess is that the hood to cowl seal is old and dry allowing water to pour in around the back of the hood and down the fire wall but I have yet to prove that theory.  The passenger side has a very small leak somewhere, may be the antenna seal / grommet but I have not had time to check this one out.  I am hoping to have most of the interior etc back in Saturday so it can be driven again.  After that I will be bringing back to my garage (its currently sitting in my dad's shop) so I can start the trouble shooting process and hopefully put some miles on her :comanche:

Link to comment
Share on other sites

Update, picked up a mostly complete navy blue interior from an awesome member here. Really I just needed the dash as mine is cracked. Need to do some cleaning to it. SEM soap, vinyl spray prep and some SEM shadow blue should work nicely. I’ll probably clean and spray every panel in the jeep so they all match. This will be a winter project though. My goal for now is to get it back together so I can bring it back to my garage. Then I can work on it at night after work etc. 

CD60CC03-6863-4DBF-B492-B74CF872F7BB.jpeg

B7597249-993D-438B-9F0C-6D87E8A95FCC.jpeg

C37E6D3C-5835-41A0-BB2E-D573F529F14B.jpeg

5A8FB5F1-1CEE-40FB-B576-64330B72F066.jpeg

Link to comment
Share on other sites

Not a bad day working on the MJ today. Got the core short throw shifter installed, put the pressure washed carpet back in, cleaned up the seats, mounted a new rear view mirror, threw in the rugged ridge mats and took her back out for a good 30 minute drive. Happy to have the interior all back in and the smell of mold and mildew out. Shifter takes some getting used to but overall I’m happy with. The liners fit good but take a little getting used to as well. The sound proofing and insulation are night and day difference. The truck is super quiet now. Pretty impressive what $90 in materials do. 

90CA949F-9208-4CE8-8FEC-C17E472B7392.jpeg

8FF20A94-C025-417F-9A51-305541BE92ED.jpeg

466CA4E9-8292-44C0-BC93-07AD099E1B2D.jpeg

CAE9F306-9D1C-4F25-8F1B-00A40F437718.jpeg

4B9FBFE5-7A6B-45BE-8C6F-D2C937EDF0CF.jpeg

2AF33922-8F43-404C-9F70-637C4DD02F72.jpeg

9C64124E-0585-49FD-9C99-0856E17B40C6.jpeg

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share


×
×
  • Create New...