Shim chaincase centre stud thickness

pierodn · May 31, 2015

Please,
I lost this part n. 060399.
Could you tell me the thickness?
Thank you.
Piero

L.A.B. · May 31, 2015

pierodn said:
I lost this part n. 060399.
Could you tell me the thickness?

https://www.oldbritts.com/nor_comm_69_51.html

06-0399
3/8" Washer Shim, .027" Thick

However, are you certain you need to fit this part, as the 060399 shim is fitted "as required" (see parts list = "AR") ?

Also factory manual, section C34, 4. states: "Check the plain washer is on the support stud (on some units an additional thinner large diameter washer is used at that point)."

Danno · May 31, 2015

I know it needs a washer, but doesn't the threaded adjustment eliminate the need for shimming?

L.A.B. · May 31, 2015

Danno said:
I know it needs a washer, but doesn't the threaded adjustment eliminate the need for shimming?

Are you thinking of the 850 Mk3 stud assembly which has the threaded adjustment?

Anonymous · May 31, 2015

pierodn said:
Please,
I lost this part n. 060399.
Could you tell me the thickness?
Thank you.
Piero

Hi piero.
Put the gaslet on the LH case and apply a straight edge to it and the centre mount stud.
The gap at the stud is the shim washer thickness you need.
Ta.

Danno · May 31, 2015

L.A.B. said:
Danno said:

I know it needs a washer, but doesn't the threaded adjustment eliminate the need for shimming?

Click to expand...

Are you thinking of the 850 Mk3 stud assembly which has the threaded adjustment?

No, I have an old 750 chaincase fixing stud in my bonepile. Is it not adjustable?

L.A.B. · May 31, 2015

Danno said:
L.A.B. said:

Danno said:

I know it needs a washer, but doesn't the threaded adjustment eliminate the need for shimming?

Click to expand...

Are you thinking of the 850 Mk3 stud assembly which has the threaded adjustment?

Click to expand...

No, I have an old 750 chaincase fixing stud in my bonepile. The MK III chaincase and engine cradle have no provision for one. The only hole in that vicinity of the cradle (and chaincase) is for the crossover shaft. I just looked to make sure.

Well, I can only suggest you look at the Mk3 inner primary chaincase and cradle again more carefully, or look in your Mk3 parts book (Group 10) or factory manual, section C34,6?

Danno · May 31, 2015

Yes, you are correct. I found it upon second look. Is the pre-Mk III fixing stud non-adjustable?

L.A.B. · May 31, 2015

Danno said:
Is the pre-Mk III fixing stud non-adjustable?

Yes (Pre-Mk3 manual section C34, 4 as quoted, above).

Shim chaincase centre stud thickness

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