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my memory these days is more pornographic than photographic
That's interesting as to the best of my knowledge the bronze thrust washer had been superceeded by the Torrington bearing either at the end of Eldorado production or slightly earlier. I may be quite wrong on that and hopefully someone like Charlie will be able to give you a better steer.What I do know is that there are differences in the machining of the face of the forth gear on the clustershaft that mean that you can't simply swap out the thrust washer for the later Torrington bearing and shim arrangement.Early five speeds could I know be 'Different' and I have little experience with the, as Loops are rare over here. On this I'm sure the likes of Charlie or the resources of Greg Bender's site will be a lot more useful than anything else I might be able to add.Pete
The "other" Charley (Cole) could give the definitive answer about when the change from thrust washer to thrust bearing occurred since he has tons more experience than me. But, in my limited experience with five-speeds, all Eldos had the thrust washers and this was carried on through the 850-T. The T3 parts manual seems to be the first that specifically shows that bearing as a needle bearing.
Hahnda, that's what I was about to post. My T had both the thrust bearing and oil filter.I suspect Guido decided 75 was to be the last year for the T and stopped making the T specific parts and then had to use T3 parts to finish the model year.If it's any help the s/n was 94404.
Like Pete say; there is a dimensional difference in mainshafts, so you can't change out the thrust washers to thrust bearing without changing the mainshaft too. It's also possible:You have an Eldo trans in your T. Examine your cover for speedo drive placement, but then again the covers could have been swapped out during transmission swap, if a swap was done? Could be you have a very early T trans, before change was made. Wouldn't hurt to check the shim pack per the repair manual specs. before installation. Good luck.
+1I'd asume your 850-T got a "eldo" tranny. FWIW, when I was racing, I liked the Eldo 5 speed with the bronze thrust washer, I feel it shifter "tighter". meaning it had less slop. may have been the shift drum was shimmed better, but a mainshaft slopping around would manifest itself similarly for certain gears.
I'm using Pete Roper's shimming guide and John Nobles lemans IV rebuild guide
Well we have both replied to your post too. ;DHope you found the guide useful. I'm not fit to polish Pete's boots but thought I'd have a go at giving something back.BTW this place is a fantastic resource, the guys (excluding me) who have already pitched in have a real depth of knowledge. Almost any other mark of motorcycle you'd pay dear to get info freely given here.Just SayinJohn
Oh Dang! I had no idea you were John Noble. Your rebuild guide and Pete's shimming guide are the two things that gave me confidence to crack open the transmission, and i'm glad I did. Upon teardown I noticed the oil fill plug was modified with a magnet (I have no idea why the previous owner would do that), the gear smacked most of the magnet off, leaving a plug with a partial magnet and a nice 4" hairline crack that starts at the plug hole. All the replies opened my eyes, as I didn't even know that eldorado used washers instead of a bearing, and my 850T shop manual illustrated a needle bearing. Sometimes it takes a bunch of replies from you guys to penetrate my thick skull :BEER:
Cracked case 4" ? Weldable I hopeInteresting plug, all T series, LM1-3 etc etc had a brass fill plug with a magnet in it, I've never seen one fail, I'd be a bit worried what the bits of broken magnet stuck to, hard to believe they didn't get caught twixt gears.I didn't know torrington didn't fit early shafts either, we all learn something here, you should post a pic of back end behind 4th , good for reference when someone finds a shaft, I'll dig out a later one as comparo. All good info for box of bits rebuilds in future
If you end up needing a replacement case, I have an empty one you can have for the cost of shipping.
here's what they should (& shouldn't) look like, magnet captive by peened over brassMiles of clearance beneath, just catches swarf & worse, nice when they're clean but sludgy stuff not uncommon, better out of oil