Stray Set Screw

Time Warp · Jul 13, 2019

Maybe its from the T/S plugging period.
It looks to be around the size of the long oil return passage.

850commando · Jul 13, 2019

save it you can start to build a new bitsa bike from unused and unidentified parts...

Hortons Norton · Jul 13, 2019

Any other projects on the lift? Or maybe boxes of fasteners?

GRM 450 · Jul 13, 2019

If you pull something apart often enough sooner or later you will have two of them

johnm · Jul 14, 2019

Its not a grub screw from a cresent spanner possibly? Adjustable spanner ?

Saber13 · Jul 14, 2019

Underside of a MKIII rear brake master cylinder?

Danno · Jul 15, 2019

After what you've been through, I can understand your paranoia about something being left out, but I think it came from something else.

swooshdave · Jul 15, 2019

johnm said:
Its not a grub screw from a cresent spanner possibly? Adjustable spanner ?

I thought it was from one of my tools we had out but it’s too big.

swooshdave · Jul 15, 2019

Saber13 said:
Underside of a MKIII rear brake master cylinder?

I don’t allow those MkIIIs in my garage.

swooshdave · Jul 15, 2019

Danno said:
After what you've been through, I can understand your paranoia about something being left out, but I think it came from something else.

Is the paranoia starting to show?

kommando · Jul 15, 2019

I put a 70 set of cases together recently, I also did the AMR oil pump mod and also their recommended change to the timing cover oiling to match the later MK3 cover, the grub screw for that was 1/4 20TPI which looks like the one you have. There was no other grub screw any thing like it anywhere else on the assembly.

swooshdave · Jul 15, 2019

kommando said:
I put a 70 set of cases together recently, I also did the AMR oil pump mod and also their recommended change to the timing cover oiling to match the later MK3 cover, the grub screw for that was 1/4 20TPI which looks like the one you have. There was no other grub screw any thing like it anywhere else on the assembly.

Where did the screw go exactly?

kommando · Jul 15, 2019

Into the timing side crankcase, on the outside into the hole that normally leaks oil when you take the timing cover off.

swooshdave · Jul 15, 2019

Oh, yeah, this engine would have never had that. It was sporting the original timing cover when I got it.

rvich · Jul 15, 2019

We now know the perfect revenge to perpetrate against a Norton owner. Sneak into the shop and leave an unidentified bolt on the bench. How well do you trust your wife? Murder by grub screw?

Dommie Nator · Jul 15, 2019

One of the, recently departed, tricks of Les Williams was to leave a gudgeon pin circlip lying around someone elses engine assembly area.

cliffa · Jul 15, 2019

Dave, didn't you buy an assortment of plugs to seal the timing chest ? Could it be one of them? It looks to me like it's never had a key in it or been threaded into anything.

Cheers,

cliffa.

Jdub · Jul 15, 2019

Can you confirm this is not something related to the tools you are using?

swooshdave · Jul 15, 2019

Jdub said:
Can you confirm this is not something related to the tools you are using?

So far it doesn't look like that.

gortnipper · Jul 21, 2019

For some reason, when I saw this pic I thought of you @swooshdave

Stray Set Screw

.......back to the 70's.