Bevel Square Case Lower Bevel Shimming

I'm sure a bevel expert will be along at some point. Is it possible that the necessary shimming required only takes place on the corresponding bevel gear this meshes with in this instance? I don't have first hand knowledge here, but is this similar to (approx) 1 minute 50 seconds on video below?

 

when you say "shaft in question" I take it that you mean the one in the video and not the one you first mentioned. I can see that designing the set-up with shims only on the former makes perfect sense (and I think this is what you meant) because with the latter (your) shaft, you have to deal with the age-old problem of shimming for correct bearing clearance/end play for the shaft itself when assembled with the carrier making it impossible to additionally shim for bevel clearance at the same time unless large diameter shims also introduced either side of the (separate) bevel gear/shaft.

 

I can't recall ever finding those shims inside a square case motor and...
I've built dozens of them without any bottom bevel or bearing problems to date, over the last 42+ years.

Steve R

 

Part 24, "washer" comes in five sizes. The drawing is not very good as it does not indicate that these "washers" can go on the spindle either side of the bevel gear.
https://www.ducaticlassics.com/parts/900-sd-and-ssd-darmah/engine-gearbox/bevel-gears-valve-timing

 

That's reassuring.

I'd settled on 24 as well but hesitated to post a reply, just in case I was wrong.

Back to Classics looks like a great setup.

 

reassuring to hear this from someone who's actually done this.

 

Cheers for the link, been looking for a supplier of Mille conn rod bearing shells for a while.
Last time I had my engine apart you could get bits from the main dealer

 

When is a washer not a washer? When it's on a Ducati, then it's a shim.

 

A little late to this thread but I asked the exact same question on Bevel Heaven and got some quite informative answers, especially from the very guy who made that video.

https://forum.bevelheaven.com/viewtopic.php?f=50&t=5340

 

above says "file not found" Andy - only reviewing this because might be doing some shimming myself soon (groan).

 

Just checked and unfortunately it looks like the Bevel Heaven forum is 'Temporarily Unavailable' hence the file not found.

And doubly unfortunately I can't for the life of me remember exactly what the informative answers might be either... ho hum

My motor was rebuilt by Tony Brancato and that's exactly what I found on mine i.e. no shims on the internal spindle, and how I reassembled it and I've had no issues.

I'm thinking it might only require shimming on one side because of the action & forces produced by the meshed bevels.

 

I know Tony quite well. He's a perfectionist when it comes to Ducati motors.

Steve R

 

@Chris I've just tried that link & it worked.

 

yes, it's working now, but have you tried joining that Forum? - it seems to be impossible at the moment (tried half a dozen times) and in lieu of any explanation i'm going to take a guess that it's down to "Bots" and spammers getting a foot in the door via the Forum Enrollment form* - a similar thing might be happening on the 851/88 Forum also as despite me being a past member going back many years, i can't get accepted to renew my password (or similar requirement to get recognised).

 

I was already a member and it allowed me to login.

I'm gonna assume you read the joining thread?

https://forum.bevelheaven.com/viewtopic.php?f=37&t=11

 

EDIT
Turns out i was already a member, not sure how far back, but password not accepted despite it being saved to chrome when last used the Forum, and despite me making sure new password complies with requirements (upper case/lower case/numbers etc) - it still wouldn't accept the change/submission.
3/the "board administrator contact page" has been disabled...

 

are you able to contact board administration Andy?

 

It looks like I may well be able to do something once logged on.

So if you want me to send a message ping me a pm & I'll work it tomorrow.