T-98 Adapter Arrived

Oddly enough, I just saw this done.....

It's on a Nissan, but it's what they did....

 

Might be easier to space the flywheel farther off the crank flange, sort of like a wheel spacer.
Have not seen how much room you have but its something to think about.

 

Guessing it would depend on how flywheel mounted to crank. Starter engagement?

 

Howard, please get back into your box. Ha Ha Ha !

 

Hadn't thought about starter, that might be a problem.

 

As stated your T18 stickout = 6-1/4"

Rear face of standard 134 bellhousing to the flywheel face is 6-1/2"
Pilot bushing is recessed another 9/16".
If clutch disk has flush fitting hub (such as the 9-1/4" Borg Beck disk) you could extend a custom made pilot bushing to the rear another 1/2".
So it's 6-1/16" just to reach the rear edge of the custom pilot bushing.
Add 1/2" minimum for maindrive gear pilot insertion into the custom bushing
The total maindrive gear stickout would need to be a minimum of 6-9/16".
The 6-1/4" stickout would be 5/16" short.

However...
You can mill down the front face off the standard F134 bellhousing by 5/16".
You could also mill the rear face of the standard F134 bellhousing by another 1/8".
Milling both front and rear of bellhousing gives you the ideal mating for input stickout of 6-1/4"

You can only mill the F-134 bellhousing that much.
It would loose no strength from milling off that much.
The standard L-134 bellhousing could only be milled 3/16" on the front and 1/8" on the rear.
The L-134 bellhousing may loose some strength if milled.

The other big concern involves total elimination of the transmission to bellhousing adapter.
The short stickout transmission must be mated direct to the milled down bellhousing or it simply will not work.

Good luck !

 

As my Ole Dad used to say. "You are a man who puts his thinking cap on".

I can see the milling of the bellhousing being a good solution. That would really clean things up. As to bolting direct to the face of the case. I am assuming the transmission would need to be disassembled, bellhousing indexed to the case, case marked, drilled and tapped for studs. I am saying studs as that is what Herm is using on his adapter.

I wonder if I can use the T18 bearing retainer with an external clutch return spring.

Is there any particular F-head bell housing that is more heavy duty? Have the 1954 on my jeep now. If there is a better bell that is compatible, I would look for one.

 

The bearing retainer index diameter must be reduced to fit the 4-1/4" bell index.
Or more likely the bellhousing index must be enlarged to fit the T18 bearing retainer.
You will also need to mount a pivot ball to the retainer for the clutch release fork.
The standard clutch release bearing slide tube is 1.25" O.D.
The bearing retainer OAL from transmission face is 4-1/8".

The 1954 Hurricane bellhousing should be ideal.
Howard recently uploaded some bellhousing pics showing the later Hurricane bell variations.

To attach bell direct to transmission the index bore and bearing retainer concern must first be addressed.
I imajine you need to transfer and tap the narrow Jeep pattern into the front of the T18 case.
You would have to put the bell up against the Scout T18 to see that its feasible.

 

Been away recouping from surgery on arm. Now getting back into this. Am looking for a 9 1/4" disc flywheel. Anyone have one ghey want to part with?

 

If you want to use a 9.25 disc, you'll need both the pressure plate and flywheel to go with it. They are all different from the 8.5" clutch set up

 

A couple years back I bought a NOS Willys flywheel from Peter Debella.
He could possibly have another one.
The one I bought from him accepts both 8-1/2 or the 9-1/4" clutches. (NOS 1960's Kaiser Jeep Inc.)

 

I bought a 9.25 flywheel , disc and PP from Oldtime years ago- haven't had the chance to install as the old 8.25" clutch just keeps on going...

Ken, last I knew, Debella had the discs and pressure plates for the 9.25. I occasionally buy military stuff from him for the A1.

 

Is there an easy way to identity a 9 1/4" flywheel? I have another flywheel located. Sell has no idea which one it is,

 

[QUOTE="Howard Eisenhauer, post: 1276227, member: 1553. 91/4 on left-




Flywheels- note the one on the right is dill for both size clutches-



H.[/QUOTE]
Got the 9 1/4" flywheel just like the one on the right. Now I can get the bellhousing milled as Oldtime has suggested . 5/16" off the engine side and 2/16" from the tranny end. Also getting the hole enlarged to the diameter of the T18 bearing retainer.

As Oldtime indicated, I have to gain a total of 3/4" = 12/16" That is the difference between the T18 MDS and T90. By going with the 9 1/4" clutch, I gained 2/16" plus the 5/16" and the 2/16" milled from the bellhousing gives me a total of 9/16". In theory, if everything works out, I can get a 3/16" oversize pilot bushing make which would give me the 3/4" needed.

 

Hicks 4x4 is well known for cutting T18 main drive (input shaft) to any length. Just sayin....

 

Mine is too short. Have yet to identify what it origionally came in. Is a T18 with a Dana 20. 4.2 low gear 23 tooth main drive gear. It is 6 1/4" long, 15/16" diameter, 10 spline. I need minimum of 7" stick out from face of transmission 8" if I use and adapter. If I could find the right shaft to cut down! Might save me some work.