Boilermaker Posted April 5, 2008 Share Posted April 5, 2008 '91 4.0L 4x2 with ax-15 trans. Pulled the engine and transmission together from the truck but now can't figure out how to separate the two. It's late and i'm tired which isn't helping any. All the dust shield bolts are removed. The transmission is kind of loose and will spin completely around the crankshaft. any help appreciated, engine hoist rental is up at 2pm on Saturday and i'm hoping to get it up on the stand by then. Thanks in advance. Link to comment Share on other sites More sharing options...
JeepcoMJ Posted April 5, 2008 Share Posted April 5, 2008 remove bolts from the bellhousing-to-engine. remove starter remove bolts for the inspection cover. split. Link to comment Share on other sites More sharing options...
Boilermaker Posted April 5, 2008 Author Share Posted April 5, 2008 wow thanks for the quick response. i was editing my initial post because i left out the info about which bolts i've already removed. Starter is off already too. I'll have to double check and make sure i got the bolts for the inspection cover. Link to comment Share on other sites More sharing options...
JeepcoMJ Posted April 5, 2008 Share Posted April 5, 2008 the inspection cover ones you've probably forgotten are the two "upper/side" bolts...something like a 13mm bolt. can you wiggle the tranny but not pull it out right now? that would be the part that's hanging up. Link to comment Share on other sites More sharing options...
Boilermaker Posted April 5, 2008 Author Share Posted April 5, 2008 it more than wiggles, it spins completely around. I'm at that stage of tired where i'm going to need to find a picture and have someone point out exactly where i should be looking. I don't remember pulling out anything that i would describe as upper/side bolts, so right there is one possibility. Link to comment Share on other sites More sharing options...
mjeff87 Posted April 5, 2008 Share Posted April 5, 2008 sounds like either the input shaft tip is hung up inside the pilot bushing, or the splines are hung up on the clutch disc..if the combo is still on the hoist, lower it until the engine is on the ground, have someone hold it or strap it off so it doesn't move, grab the tranny by the tailcone and rock/shake it while pulling backwards (carefully) until whatever is binding up releases. Link to comment Share on other sites More sharing options...
Boilermaker Posted April 5, 2008 Author Share Posted April 5, 2008 sounds like either the input shaft tip is hung up inside the pilot bushing, or the splines are hung up on the clutch disc This is what i'm hoping it isn't. Thanks guys for the suggestions. After a couple of hours of sleep i'm coherent enough to form sentences, so i'll try to explain what's going on a little better. Not that it won't mean what's already suggested won't work. The transmission fluid has been drained and the starter is off. The bolts that attach the bell housing to the engine are all out. At least i'm pretty sure they are; removed 6 or 8 bolts on the housing side, and two on the engine side. There is a little bit of separation between the bell housing and the engine; maybe an inch. It's enough that spacer or dust cover or spacer whatever can be moved back and forth some and i can see inside the bell housing. While up in the air, i can rotate the transmission a full 360 degrees around whatever shaft is holding everything together. Its also so covered in oil, its possible i missed what would normally be an obvious bolt. I'm off in a little bit to try what's been suggested already...but i'll probably be back in an hour or two if i can't get them apart. Link to comment Share on other sites More sharing options...
JeepcoMJ Posted April 5, 2008 Share Posted April 5, 2008 it's the bushing hanging up. get a new one...that one's shot. you need your tranny and engine to be PERFECTLY level to each other to seperate them right now. Link to comment Share on other sites More sharing options...
Boilermaker Posted April 5, 2008 Author Share Posted April 5, 2008 and the winner is...shake and pull. So the trans is basically separated. Do i need to pull out the spacer, and those other plates before i put it on the engine stand. If so, are those 6 large bolts holding it all together? Thanks Link to comment Share on other sites More sharing options...
mjeff87 Posted April 7, 2008 Share Posted April 7, 2008 the inspection cover (thin plate) should slide out. The larger plate is the flywheel, which is bolted to the end of the crankshaft by those 6 bolts. You shouldn't have to take it off to get the engine mounted on the stand, but if you do want to, an impact gun would be your best bet. Link to comment Share on other sites More sharing options...
Boilermaker Posted April 7, 2008 Author Share Posted April 7, 2008 i didn't have an impact gun, so i ended up having to use a breaker bar, a tire iron and two bolts. One bolt went into the inspection cover, the other onto a belt housing bolt hole on the engine. Wedged the tire iron between the two to keep the fly wheel from rotating and held onto it with one hand. Cranked off the bolts with the breaker bar. It might be time to invest in an impact gun. The engine is up on the stand now. Very very slowly over time i will be disassembling the it to see if it in good enough shape to turn into a stroker. mjeff87 and Jeepco, thanks again for the suggestions. Link to comment Share on other sites More sharing options...
carnuck Posted April 7, 2008 Share Posted April 7, 2008 I just went through this pulling the BA 10/5 out of my '87 and had the same prob separating them (I knew mine had died. The truck almost launched me into the car in front of me while I still had my foot on the clutch!) Link to comment Share on other sites More sharing options...
Geonovast Posted April 8, 2008 Share Posted April 8, 2008 How I removed the BA 10/5 transmission from my 88XJ when it got scrapped: 1. Jack up truck. 2. Remove head, Oil Pan, Front axle. 3. Remove balancer, Timing cover, and Timing gears. 4. Unbolt transmission crossmember and Tranny to Engine bolts. 5. Remove Main Bearing knuckles. 6. Pull back about an inch to clear the Bell guid pins, and it drops right down :D Link to comment Share on other sites More sharing options...
JohnQ Posted April 8, 2008 Share Posted April 8, 2008 Man I'm sorry I didn't see this posting earlier. I have an impact gun I would have let you use. I might have a trailer lined up for this weekend for only $50. :D Link to comment Share on other sites More sharing options...
Boilermaker Posted April 8, 2008 Author Share Posted April 8, 2008 no worries john, if you were closer i would have probably asked. Those 6 bolts were actually not too bad, but there were a few others that took longer than they should. if you can bring the impact gun with you on saturday, we may need it. I haven't separated the bell housing from the transmission yet; i just ran out of day on saturday. Let me know about that trailer as soon as you can. Already gave notice to the storage facility that i would be out by the end of the weekend. Link to comment Share on other sites More sharing options...
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