A50 Side panel mounting problems

Started by Mick Boon, 04 Mar, 2021, 01:43

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Mick Boon

I'm having problems mounting the side panels on my A50 royal Star.  The oddie studs keep pushing the tube like parts they are supposed to fit into out of the clips that hold them in place.   I do know the oddie clips need to be aligned before attempting the incredible feat but so far I have been defeated on every attempt.

Before an attempt to mount a side panel.



After an attempt.




What can I do to fix the problem  ?


Mick Boon

Are there different types of oddie fasteners ?   These don't look right for they type of retaining  cups I have.




berniej

Mick,
I haven't seen those tubular bits on any of my bikes - the Oddie clip pushes straight into the retaining clip. Rotate 90 degress to remove.
The studs do need to be the correct lenght, one side is shorter than the other though I can't remember which way round it is....

Maybe try without the tubes....

Cheers,
Bernie
'49 M21/B31 hybrid
'56 M21 combination
B40 Super Star
A50CC project

JulianS

Try without the tubular bits, the oddie needs to engage with the spring clip.

ChrisG

Agreed, the Oddie (or Zeus) Fastener pushes in to the spring clip with the slots at 90 deg. then twist and clip. If the springs are weak, then its easy to click them in whilst in the right position. They wont pull out. It's good if you can hear or fell the click. To remove, twist and they pull out easy.


Mick Boon

Thanks everyone, I removed the extra parts I had and that fixed it.    ;D

Mike Farmer

 :) :) :)

If the springs are weak and you are worried. they are about 50p each and a simple pop rivet fix.

Mike 8) 8) 8) 8)

berniej

Ed. Interesting that you mention the Zeus fastener.... aka Dzus fastener (if it's the same one). I first came across these back in the 70s while working for Hawker Siddeley military division.

They were used to fasten maintenance and inspection hatches on the Harrier (and probs others) to provide a secure but quick release mechanism.
They also had special slots on the heads which were cut by plunging a dovetail-profile milling cutter down into the head and then rotating a few degrees each way.
This produced an undercut profile at the ends of the slot which, with a matching hand tool to suit, meant that the tool - i.e. 'screwdriver' - keyed in to the head as it was turned preventing it from jumping out and potentially scratching the airframe surface - which might then provide a source of a fatigue fracture.

I didn't come across them again for decades until I got a Dommie 99 which uses them to secure the back of the seat down to the mudguard - except on my bike it had been replaced with.... an Oddie stud!!

Cheers,
Bernie
'49 M21/B31 hybrid
'56 M21 combination
B40 Super Star
A50CC project

Mike Farmer

 :) :) :)

I had a 67 ex police Thunderbolt that has DZUS fasteners as opposed to the oddies. No idea if it was just a modification done by someone or BSA spec.

Must admit I didn't notice any difference.

I think the piston Cessnas are still using them.

MIke 8) 8) 8)

DAVE BRADY

Hi,

Dzus fasteners on A10 tool boxes?

Dave.

ChrisG

Sorry, I did mean DZUS fasteners and consider myself well and truly corrected!!!!