Something Failed, let’s find it! Transmission Analysis.

[SMLWNKR]

Substitute bolts found to fasten cases for a lot cheaper.

Triumph charges $7.67 per bolt for a M8x1.25 35mm Bolt used to hold the case halves together, you need 14. They’re single use...

I was going to order some probolt replacements, it those are $5.80 even.

Instead I found ARP exact replacements, 5 bolts for $16, definitely not single use lol. Bonus: They’re Black.

ARP 661-1004: Black Oxide, M8 x 1.25, 35mm UHL, Hex | JEGS

Brother, working on my own Trans issues now. Read your ordeal and learned a lot. These alternative bolts you found. You say 14 are needed, but the manual says to remove and discard bolts 11-35 (24). Page 5.6 step 5 on disassembly. What am I missing??

 

[Stillserving]

He did buy 25 bolts, so....

 

[SMLWNKR]

He did buy 25 bolts, so....

I missed that post then. Thanks.

 

[Rocket Scientist]

Most of the time, Triumph says to replace the bolts because they come with loctite on them. I guess their mechanic's can't squirt the old bolts with new loctite

I reused my case bolts. I did replace the main bearing ladder bolts, but Warp 9.9 pointed out that that is not required on the early models according the manual.

 

[SMLWNKR]

Most of the time, Triumph says to replace the bolts because they come with loctite on them. I guess their mechanic's can't squirt the old bolts with new loctite

Thanks,

Most of the time, Triumph says to replace the bolts because they come with loctite on them. I guess their mechanic's can't squirt the old bolts with new loctite

I reused my case bolts. I did replace the main bearing ladder bolts, but Warp 9.9 pointed out that that is not required on the early models according the manual.

This forum has been a wealth of information. It’s nice to get input from people who have been down this road. I have threadlocker and will easily apply the required amount to make these old bolts hold tight

 

[Claviger]

The manual says discard but when you dig into the parts fiche you’ll find there’s a weird mix of bolts many different sizes.

ARP is the most economical way to replace them with better quality at a much much cheaper price.

Only waiting on the three countersunk input shaft single use bolts and I can put it all together again

 

[Claviger]

Progress! Finally I was able to close up my engine cases, feels good.

This step is a timed test!! Have all your tools ready, manual open, and load the different length bolts before fitting the lower case. You’ve got about 30 minutes!

 

[Claviger]

Reached a stopping point today. So close in just a few hours, I could push on, but I’m in no rush.

Just a clutch and stator away from done, but I need to work out the cam timing first!

 

[1olbull]

 

[Claviger]

My top crank mark is dead on, bottom not so much, interesting to know. TDC set using a dial indicator down the plug hole, with 0.0001 of an inch.