Transmission Installation

[Csarneson]

After a 3-year delay I am getting back to my 100-6 restoration. Almost done!

I am getting ready to bolt the tranny to the engine. I've read the manual and still have some questions:

1) I'm using a new clutch kit from Moss (clutch disk, pressure plate, and release bearing). Is there anything that I should lubricate before bolting together? I don't see anything obvious.

2) What do I need to lubricate before bolting these together? Presumably I should apply some vaseline to the transmission shaft splines before inserting into the engine? Should I lubricate the release bearing? If so with what and where? Just the release bearing pins or also the face where it hits the clutch?

3) I am missing a single dowel bolt and Moss is out of stock. Does anybody have a single one laying around they would part with? I'm now in the Denver area.

4) Are there any other "gotchas" that I need to be aware of? After some study I understand the locations and purpose of the dowel bolts.

Chris Arneson

 

[Dandare]

Absolutely don't lube the face of the release bearing! Splines with something better than vaseline but sparingly IMO.

Danny

 

[Bob_Spidell]

I've always put a thin coat of wheel bearing grease on splines (too much could get thrown out to the clutch surface). I don't usually, but a tiny smear on the 'ears' of the release bearing couldn't hurt (but isn't critical). You might check BCS for a dowel pin.

Check the side play on the bearing fork while you've got it on the bench; probably fine, but doesn't hurt to check.

 

[Csarneson]

Thanks for the advice guys! After a bunch of searching I found a thread that suggested this bolt > Close Tolerance Bolt AN176-13A | Aircraft Spruce ® < as a substitute. The specs looks right so I ordered it. Great advice on the lube locations. I didn't really feel comfortable putting much grease inside there and then having it spin around so you've confirmed my hunches! Thanks! I might have her on the road by spring!

 

[Healey Nut]

Did you check/replace the pilot bushing while you were in there ?
It needs a little lube too when you put it together .

 

[WHT]

Hi Chris,

As Graham said, a little engine oil on the face/interior of the pilot bearing helps during installation.

I understand you know this, while a little grease is OK for the splines and release bearing ears, don't put grease on a bronze Oilite plot bushing.

Good luck with your installation.

Regards, Bill

 

[WHT]

Hi Chris,

Regarding your missing dowel bolt, if you cannot find one and don't want to wait for them to be back in stock, I think you will find the only real difference from the other bell-housing bolts is the length of the unthreaded shank. The unthreaded diameters should be the same as I remember (0.375-inches diameter). Measure them carefully.

With a little effort, you can find a bolt that will work. Make sure the unthreaded length of the bolt you use is short enough that it can be tightened properly. With care, you can find the right unthreaded length and shorten the threaded section to the correct length. Lightly polish the transition area to better handle stress if you want and you should be good to go.

Again, this is (i) just in case you cant find a dowel bolt and don't want to (or cant) wait for them to be back in stock, (ii) feel comfortable polishing the transition area and (iii) shortening bolts and dressing the end threads (for example, a quick pass with a chaser die (not a cutting die). The dowel bolts that are available new are most likely made in India, and your bolt will be better quality in all likelihood.

Again, use a good quality/grade USA or British made bolt. The torque on these bolts is only 420 pounds-inches.

Regards, Bill