Cummins 4BT & Diesel Conversions Forums banner

1989 Grand Wagoneer 4BT

25792 Views 262 Replies 15 Participants Last post by  scout4bta
This is just a tease. The actual work will begin in January 2020.
Had the Ppump 4BT for several years, finely got around to the initial start up, it lives!


Pulling the gas motor, the real work begins
Class 3 hitch fab
Start up after priming
Sick Cummins?
Engine cleanup after inframe rebuild
Air filter
221 - 240 of 263 Posts
2
Didn't like the way the exhaust tip looked. I wanted a turn out but too cheep to buy one, so spent some time on the band saw with some left over elbows.

Attachments

See less See more
  • Like
Reactions: 2
Not much is going to happen until beginning of next year.
Had my much anticipated white tail deer hunt go off with out a hitch, or deer. Left for deer camp Nov 23 and came home early on Dec 2 because of a nasty wet storm that came in.
Just got home from Tucson. Spent 3 nights there and then will have 2 day trips to Safford to finish off the week.

Still putting off doing the wiring that needs to be done.

Funds permitting I'll order the 2.5" spring lift kit in January.
  • Like
Reactions: 3
Not too much happening. Changed my mind about the ratcheting (floor) shifter vs factory shifter on the column. The only way to clean up the steering column (if I used the floor shifter) was to replace the steering column with one from a J truck. It would fit but I'd have to rewire every thing, no thanks. So I bought a set of used factory shift controls over the holidays. They came from back east so there's a lot of rust.

Attachments

See less See more
  • Like
Reactions: 1
3
Revised (custom) shift linkage is in.

Attachments

See less See more
  • Like
Reactions: 3
CAC tubeing tackwelded

Attachments

See less See more
  • Like
Reactions: 3
Intercooler piping routing looks very neat and clean.
Intercooler piping routing looks very neat and clean.
Thanks.
I did have to break the tackwelds on the drivers side pipe and rotate the 2 halves for better alignment.
Santa didn't leave me a tig welder for Christmas so my pipe welds still look crummy but they will hold.

Attachments

See less See more
  • Like
Reactions: 2
2
Looking at fabricating a fan shroud, noticed that the fan tip could hit the fan shroud on the drivers side. Spent 2 days cutting, welding and drilling on the radiator support. The radiator now sits 1" more to the drivers side. Which also made more room for the radiator overflow/catch can. I only made the brackets, bought the can.

Attachments

See less See more
  • Like
Reactions: 3
That's called fine tuning. LOL. Sometimes you have to work out those little details as it comes together.
  • Like
Reactions: 3
2
When I cut the front bulkhead removing the cross piece for easier engine removal and install. I figured the opening would spread, it did, about 1/8". Enough spread that the holes were off center enough that the screws wouldn't fit.
The fix was to add a long screw between the two front radiator mounts and pull them together. Had 2 used R8 drawbars, cut off the bad parts and welded them together. One big long screw.

Attachments

See less See more
  • Like
Reactions: 1
2
Now I need to figure where to hang a crank case vent can. There's no room for the can down by the starter. But there is room at the front between the engine and the radiator, both sides. I know that the later Dodge 6B's moved the crank case vent to the front of the timing cover. That would work but it still dumps oil on the ground. The Moroso can uses a -12AN fitting to attach the hose to the can.
I'm thinking about attaching it to a valve cover. "If" there's room inside I might be able to use a male bulkhead adapter. Cut off what isn't needed.
Another thought is mount it on the screw cap on the timing cover and use a 90° bulkhead adapter. If I mount it off center it might clear the injection gear nut.

Attachments

See less See more
3
Actually, the Dodge setup had a catch can although some fell off. Another possible is the top valve cover vents. These vent the vapor but trap the oil so it doesn't end up on the ground. In original application they had their vent hose routed to the air filter. Sort of like the PCV valve in the old days. You don't want oily vapor going into your intercooler so there would be a filter to catch it. Those PCV filters are only about $4 or you could use a catch can with a breather. Here's a photo of that setup and one showing 2 sets on a 6bt. Only need one on a 4bt.

Attachments

See less See more
  • Like
Reactions: 1
Thanks,
I think the top of the valve cover PCV is too high and might hit the hood. But the price gets in the way too.
The third photo, could happen or something like that.
I bought the Moroso can for my wife's Jeep Liberty Diesel. Jeep in it's infinite wisdom routed the crankcase tube into the front of the turbo on the Liberty. So you know what it looks like down stream. But unfortunately there no room under the hood in the Liberty for the Moroso can. For now the Liberty has the old style, dumping on the ground.
I'm trying to use the Moroso can on my Jeep somehow.
Looked at examples of PVC relocation kits for the Dodge Diesel and all you get is a catch can like I have and 10' of hose.

I going to mount the Moroso catch can on the radiator support or near there and run hose from the tappet cover to the catch can.
Just ordered 5' of hose.
Thanks,
I think the top of the valve cover PCV is too high and might hit the hood. But the price gets in the way too.
The third photo, could happen or something like that.
I bought the Moroso can for my wife's Jeep Liberty Diesel. Jeep in it's infinite wisdom routed the crankcase tube into the front of the turbo on the Liberty. So you know what it looks like down stream. But unfortunately there no room under the hood in the Liberty for the Moroso can. For now the Liberty has the old style, dumping on the ground.
I'm trying to use the Moroso can on my Jeep somehow.
They clear the hood, on a chevy/gmc setup, I use two (2) of those double cover units on my build, vented to air filter, no oil residue whatsoever. Lots of road dust "dirt everyday"...
Hood Automotive tire Motor vehicle Automotive lighting Window
See less See more
One more thing to take care of again, the front of the transmission pan just started to seep, enough to leave a small pool of atf.
It's been holding the ATF for over month no problem, all of a sudden it lets go.
Mabe I'll try a cheap gasket this time. So much for the $20 FelPro gasket.
The "Like" button is not appropriate - We need an "Oh poop" button...
  • Like
Reactions: 1
2
Re-started the wiring. Working on the grounds. Took 4 hours* on Saturday just to bend and cut the neg 2/O cable. Connected it to the front using one of the front engine mount holes.
The Cummins crankcase vent arrived, did some preliminary hose routing.

*Shop was at 40℉, (4.44℃) 2/O doesn't like to bend at those temps;

Attachments

See less See more
  • Like
Reactions: 1
3
Shifting gears, working on the A/C
Learned that the Jeep has a thermostatic expansion valve system (TXV). Found all of the leftover A/C parts that were going into the Willys, there now going into the Jeep. Had to order 3 fittings, The outlet (low side) from the evaporator has a special fitting. A #12 male 90° flared to #10 hose. I orginaly thought it had a #12 hose, searched in vain for something comparable, nothing. Stripped the hose off the fitting found it was a #10. Could not find any one selling just the ferrule, so I'll sacrifice a #10 fitting, use it on the old Jeep fitting. Problems solved. I expected the high side fitting to be problematic also, It didn't disappoint. It's a #6 female flared. Actually found that fitting online in about 5 minutes. Still have to flush out the evaporator, clean all of the R12 oil out.

Attachments

See less See more
  • Like
Reactions: 3
Shifting gears, working on the A/C
Learned that the Jeep has a thermostatic expansion valve system (TXV). Found all of the leftover A/C parts that were going into the Willys, there now going into the Jeep. Had to order 3 fittings, The outlet (low side) from the evaporator has a special fitting. A #12 male 90° flared to #10 hose. I orginaly thought it had a #12 hose, searched in vain for something comparable, nothing. Stripped the hose off the fitting found it was a #10. Could not find any one selling just the ferrule, so I'll sacrifice a #10 fitting, use it on the old Jeep fitting. Problems solved. I expected the high side fitting to be problematic also, It didn't disappoint. It's a #6 female flared. Actually found that fitting online in about 5 minutes. Still have to flush out the evaporator, clean all of the R12 oil out.
Shifting gears, working on the A/C
Learned that the Jeep has a thermostatic expansion valve system (TXV). Found all of the leftover A/C parts that were going into the Willys, there now going into the Jeep. Had to order 3 fittings, The outlet (low side) from the evaporator has a special fitting. A #12 male 90° flared to #10 hose. I orginaly thought it had a #12 hose, searched in vain for something comparable, nothing. Stripped the hose off the fitting found it was a #10. Could not find any one selling just the ferrule, so I'll sacrifice a #10 fitting, use it on the old Jeep fitting. Problems solved. I expected the high side fitting to be problematic also, It didn't disappoint. It's a #6 female flared. Actually found that fitting online in about 5 minutes. Still have to flush out the evaporator, clean all of the R12 oil out.
Shifting gears, working on the A/C
Learned that the Jeep has a thermostatic expansion valve system (TXV). Found all of the leftover A/C parts that were going into the Willys, there now going into the Jeep. Had to order 3 fittings, The outlet (low side) from the evaporator has a special fitting. A #12 male 90° flared to #10 hose. I orginaly thought it had a #12 hose, searched in vain for something comparable, nothing. Stripped the hose off the fitting found it was a #10. Could not find any one selling just the ferrule, so I'll sacrifice a #10 fitting, use it on the old Jeep fitting. Problems solved. I expected the high side fitting to be problematic also, It didn't disappoint. It's a #6 female flared. Actually found that fitting online in about 5 minutes. Still have to flush out the evaporator, clean all of the R12 oil out.
Hey Mr. Scout, just spent the last 45 mins going over your pics and posts from your 4bt-89wag build, I am doing almost the same build, 4bt-88gw and getting ready to start in earnest as soon as it warms up a little up here is the high country, Chino Valley AZ, I am using a mid 90's ve pump 4bt, it was rebuilt around 5/21 and I bought it a guy out in NM who sold the baby jeep and never started the project... I acquired the motor in 1/22 and has been gathering parts, 47re and 47rh transmissions, 241dld t-case, I will continue to follow your build as I have picked up some great ideas from your build...!!! thanks.
  • Like
Reactions: 2
221 - 240 of 263 Posts
Top