T19 Rebuild in Korea

[harrywt]

Of course. Cross member sandwiched by mounts. Just couldn't form picture of metal piece captured by rubber when I looked at those two mounts. Thanks. Pics to follow

 

[harrywt]

bone head part deux

So I decided to use the front bearing retainer to push the front bearing on, it didn't work out... I notice that it is stamped t18c, does that mean that the front bearing retainer from the t18 that is presently in my Scout will swap in to the t19?

 

[harrywt]

Do you happen to remember the bolt size? I will have to order them

when the t18 in my Scout was swapped for a t19, the holes in the xmember were opened up to fit the shoulders of the mounts. 1 mount went on the bottom and 1 on the top. Long bolts ran through the whole package into the transmission. You will need the bushings. Something should be available locally that can be cut about 1/16" shorter than the height of the 2 mounts stacked.

Hint: get the bolts through the mounts started before mounting the xmember to the frame.

 

[harrywt]

bone head part deux

I waited a couple of weeks to see if anyone would reply to my post about the front bearing retainer. Since no one did I contacted a 3rd party vendor and they sent me what they said would be a used part. It looks new to me.

so I decided to use the front bearing retainer to push the front bearing on, it didn't work out... I notice that it is stamped t18c, does that mean that the front bearing retainer from the t18 that is presently in my Scout will swap in to the t19?

 

[jeff campbell]

Whats the # on your t-19 input shaft housing ? Or don't you have 1 ? Will check # out on mine,an report back. Jeff

 

[harrywt]

I finally got a new one a week ago. You can see some numbers on the broken one a couple posts back. Do you want to know the numbers on both that I have?

whats the # on your t-19 input shaft housing ? Or don't you have 1 ? Will check # out on mine,an report back. Jeff

 

[jeff campbell]

I seen the # on your new 1 . T-18c ? Whats your old # ? If tey're the same then, you be ok. Jeff

 

[Hondo]

A little off the current direction of this thread, but does anybody know if the shifter assemblies, I.e. The whole top covers, are interchangeable between t19 close and t19 wide trasmissions?

 

[jeff campbell]

I do believe they are, only diff is the size of the gear's...Jeff

 

[Hondo]

Thanks Jeff, the t19 in my 75 has always been very finiky about going into third gear, which can be extremely aggravating. I'll swap tops and try to isolate if its in the shifters or in the gears.

 

[harrywt]

Hey there, I just saw this, sorry. I am hunkered down for the winter still but will be resuming the rebuild soon

I seen the # on your new 1 . T-18c ? Whats your old # ? If tey're the same then, you be ok. Jeff

 

[harrywt]

So we're finally getting hospitable weather here in the republic of korea, so it's time to drop the old t18. It finally started to degrade. Became very difficult to shift and sometimes just would not come out of gear until I rocked back and forth a bit but I would get some big bangs like when the spider gears in one of my diffs went bad pieces got caught in the gears.

I took out the shafts and then manhandles the transfer case with my son. So the pics will start with the tranny drop. I tried to do it as hillbilly as possible so I collected a bunch of lumber scraps and some plastic stools. I tried to not cut anything, just fit together what I found and go for it. The tranny couldn't get any more broke....

 

[harrywt]

Here's some more pictures.


A boy and his boy

 

[harrywt]

So it looks like the counter shaft bearings went bad. The reverse gear uses the same free roller bearings but one doesn't have the tranny in reverse for too many miles...

Also, looks like one of the countershaft thrust bearings in the pic, I remember it from re building the t19

 

[harrywt]

So I went through so much trouble to replace the nose piece that I cracked and lo and behold the Scout version is longer. The existing one has a gouge in it but when I slide the to bearing onto it and find no more play than when I slid it onto the brand new one that is too short

 

[harrywt]

So I dry fit the mounts and bolts and sleeves that I had made. I forgot to allow for the thickness of the metal plates in the mounts so the sleeves are too long.

 

[harrywt]

So I need to enlarge the slots in the cross member that supports the transmission. I will make them large enough to accept the ring shaped extension of the polyurethane of the mount.

I wonder if I should trim the ring off of one of the mounts. The height of one matches the thickness of the cross member so they both won't go into it. (this might be measure twice, cut once time) as soon as they start pressing against each other they will expand larger than the size of the slots in the cross member.

Any opinions?

 

[FDChappie]

I didn't remove the shoulder on mine and so far no issues. Please remove that flywheel and lets have a good look at the surface.

 

[harrywt]

I didn't remove the shoulder on mine and so far no issues. Please remove that flywheel and lets have a good look at the surface.

Ok. So I am still kind of bothered by the transmission mount assembly scheme. The mount has 1" diameter rings around the holes that are 0.125" high. You have to enlarge the holes in the cross member to accommodate them

 

[harrywt]

I have the cross member out of my Scout and I notice that it is made of 0.125" thick steel. Remember that the mounts have a 0.125" lip on them so if I want to close up the mounts to the cross member I am going to have to squeeze each one down by half.

I had a couple of steel bushings made that fit into the large holes in the mount and then of an id appropriate to the 3/8" bolts that go into the tranny. To close up the 0.125" gap I will need to make them 0.125" shorter than the space between the steel plates inside of the mounts.

Now keep in mind that my mounts are polyurethane so they are harder than rubber mounts. I am not sure if I can even squeeze the rings by a total of 0.125" and even so there will be very little force on the mating surfaces of the mounts and the cross member. Maybe that's desirable because then the tranny can slide a little fore and aft in the slots.

If I want to have some pressure on the mating surfaces I will have to cut the bushings down even more, something like 0.1875" to give a 1/16" "squeeze". So now I have to think about squeezing the poly urethane even more. I am thinking abiut trimming down the rings a bit to shift force from them to the mating surfaces.

So I have convinced myself to get two sets of bushings made and just test out what happens so I don't need any of your opinions after all! But thanks for listening.....

Seriously though, please give me your opinions, especially Tom (fdchappie) as he and I have been consulting on this.

View attachment mounts_on_crossmember.pdf