Possibly my first screw up?

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The intermediate shaft is solid steel and an interference fit direct into the case, that Bush look like a fix for a loose shaft. I will look at some cases tomorrow but for now do nothing.
 
Norcoastal said:
I believe that the intermediate shaft had broken off in my engine case.
Click to expand...

The intermediate spindle is hardened steel.

Are you sure that's not the crankcase alloy?

Unless it's a sleeve that somebody has fitted? It isn't a 'bush' because the spindle should be a tight fit in the case so it doesn't rotate.
 
kommando said:
The intermediate shaft is solid steel and an interference fit direct into the case, that Bush look like a fix for a loose shaft. I will look at some cases tomorrow but for now do nothing.
Click to expand...

That’s what I thought. I have been looking at empty cases and there is no steel bushing. I seems like the intermediate shaft is put directly into the aluminum case. This MAY have been a fix???
 
L.A.B. said:
The intermediate spindle is hardened steel.

Are you sure that's not the crankcase alloy?

Unless it's a sleeve that somebody has fitted? It isn't a 'bush' because the spindle should be a tight fit in the case so it doesn't rotate.
Click to expand...

That’s what I’m thinking. I may go put a magnet on it to make sure I’m not doing damage to the alloy.
 
There's a bushing in the gear, but not in the case. I think you're right that that's the remains of a sheared off spindle. Dunno how that could happen.
 
kommando said:
The intermediate shaft is solid steel and an interference fit direct into the case, that Bush look like a fix for a loose shaft. I will look at some cases tomorrow but for now do nothing.
Click to expand...

I’m in a holding pattern until I hear from you.

Thanks
 
It APPEARS to be a separate piece of metal, but I’m not sure. Theres a space for the retaining ring between the two surfaces. But it may be part of the case. I didn’t damage it too much. It will still accept the shaft.

Please someone let me know if this is a bearing that can be replaced or is it part of the case.

I really appreciate your help.
 
kommando said:
The intermediate shaft is solid steel and an interference fit direct into the case, that Bush look like a fix for a loose shaft. I will look at some cases tomorrow but for now do nothing.
Click to expand...

It looks to be hollow...

Possibly my first screw up?
 
Norcoastal said:
I may go put a magnet on it to make sure I’m not doing damage to the alloy.
Click to expand...

I think you could be too late?

If it was a section of broken spindle then the end would be visible allowing it to be pressed/knocked out after the inner circlip had been removed.
 
Last edited:
Yes it is, I have a new one ready to go into a case, the old one was loose but the alloy was not work but the shaft was worn.
 
kommando said:
Yes it is, I have a new one ready to go into a case, the old one was loose but the alloy was not work but the shaft was worn.
Click to expand...

So there IS a bushing that can be removed?

I also just bought a new intermediate shaft. It should be here in a bout a week.
 
I have to run out. My wife and I are taking my son and his fiancé to dinner.

I’ll check back later.

Thanks for the advice.
 
In the Andover parts drawings for both the 1973 850 crankcase and
Cam gear there is no bushing . If it is a broken spindle - and the edge looks too clean for it to be a break - it looks to me that it may be in a counter bored hole . The picture of the new right hand crankcase on Andover site does not appear to have a counter bore - my advice to you is to stop what you are doing - wait until you obtain a new intermediate shaft from Andover, RGM or Norvil and measure the OD of the shaft or perhaps a member here has one and can measure it for you. Armed with that dimension you will be able to tell if it is a piece of the shaft (spindle) or a bush. This bore in the crankcase for the spindle often becomes enlarged from setting the cam chain tension with the timing cover off and not supporting the outboard end of the spindle so a repair by counter boring and bushing is not unheard of. As mentioned above the Mick Hemmings DVD is a must have- it is available from the U.K. based NOC.
 
Richard Tool said:
In the Andover parts drawings for both the 1973 850 crankcase and
Cam gear there is no bushing . If it is a broken spindle - and the edge looks too clean for it to be a break - it looks to me that it may be in a counter bored hole . The picture of the new right hand crankcase on Andover site does not appear to have a counter bore - my advice to you is to stop what you are doing - wait until you obtain a new intermediate shaft from Andover, RGM or Norvil and measure the OD of the shaft or perhaps a member here has one and can measure it for you. Armed with that dimension you will be able to tell if it is a piece of the shaft (spindle) or a bush. This bore in the crankcase for the spindle often becomes enlarged from setting the cam chain tension with the timing cover off and not supporting the outboard end of the spindle so a repair by counter boring and bushing is not unheard of. As mentioned above the Mick Hemmings DVD is a must have- it is available from the U.K. based NOC.
Click to expand...

This is exactly what I’m going to do, including the video!
 
L.A.B. said:
I think you could be too late?

If it was a section of broken spindle then the end would be visible allowing it to be pressed/knocked out after the inner circlip had been removed.
Click to expand...

This of course is the answer.
Split the cases, and from the inside you should see the black steel circlip that the shaft bottoms on. Remove the circlip, and with local heat applied, and suitable drift, knock the remnant of the shaft out towards the outside of the case. No bushing.
 
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