Having problems with our t150 transmission. Searched and didn't find my exact answer so I will post.
The transmission likes to pop out of 2nd gear. You can hold it in with force and it will pop out sometimes. It also likes to make a grinding noise. It has been rebuilt in July, and been rebuilt once before. The first time it had a new synchro put in it, which we were told was good when it was rebuilt in July. The 2nd gear also looked good, mechanic (good friend of ours) thinks my dad had a new 2nd gear put in it the first time, which he can't remember. It also has gear oil flying from the transmission into the transfer case through a weep hole? Have to ask him for the exact details. It done the same thing the first time after we rebuilt it, first time didn't get some kind of seal you had to order extra, but we got it on the last rebuild and it still leaks. If you need more details I can ask him tommorow. But can anyone give us some insight? Thanks!
sounds like the gear teeth (small ones that lock it in gear)are gone and the brass ring and did they replace the sleeve at the same time - if the small teeth are not pointy or longer on one side they are shot same for the brass blocking ring too and the inside of the shifter ring is beat up at the end replace it to
Just talked to dad wallago, reminded me to post that there was a new 2nd gear synchronizer put in the first time it was rebuilt. The synchronizer is the brass thing right? It likes to also make a little noise in 2nd gear, but not bad since it was rebuilt. Also, it likes to leak gear oil from the transmission to the transfer case, but he had a new mainshaft seal put in it, any ideas? Thanks!
I have a t150 in a 78 CJ7. I've had it apart twice. The early models did not have the weep hole for the fluid to go into the trnasfer case and they had a problem of burning up the output shaft on the transfer case if it wasn't put into gear frequently. You don't need the seal, it won't matter anyway and if you didn't put the oil slinger on ahead of it you could actually cause the rear bearing to burn out prematurely. Most of the time jumping out of second gear, and mine is starting to do that to, is becasue of downshifting a lot and wearing on the back side of the gear. My guess is as long as your pulling against the gear it stays in but as soon as you let up it jumps out. It will jump out going down hill when it is trying to hold back against the backside of the gear. Second takes the most wear. About the only real fix is a new second gear and then you haven't accounted for the wear on the cluster gear. The t150 was fairly prolific and they don't cost much from most of these guys that tear jeeps apart. If it were me, i'd try and buy a used tranny and either steal the parts from it or use it. Good luck.
As mentioned, you can remove the shifter cover and check the detent springs and shifter assembly for wear. This can be done by just removing the shifter through the hole in the floor. Often jumping out of gear is caused by end play in the mainshaft or end play of gears on the mainshaft. Often in rebuild kits there will be different thickness snap rings that can be used to adjust end play.
take the floor pan off. take the bolts out that hold the top of the trans in. lift the top off. look at the shifting forks. you will see the are raised brass bumps on the end of the forks. these push the gears all the way into what ever gear you using. all you have to do is brase another-bigger tip back on. take a file smooth it down. it will stay in 2nd gear... use to fix these all the time. look around and see if you can find a t-18.