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AtsBMW
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Byron Center, Mi
Joined: 09/03/2017
Posts: 27

The gasket on my R75/5 is getting brittle. I’m uncertain as to how the cap comes apart to replace the gasket. Any wisdom on making this repair will be helpful.

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1960 R50
1965 R50/2
1972 R75/5 Toaster Tank SWB
1994 R1100RS

schrader7032
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VBMWMO #7032
San Antonio, TX
Joined: 10/27/2006
Posts: 6866
Matt Parkhouse has a nice

Matt Parkhouse has a nice layout of a repair in the MOA Owners News. It looks like the cork sealing ring is held in place with a rivet...the rivet needs to be drilled out. I found a nice set of pictures on the MOA forum:

https://forums.bmwmoa.org/showthread.php?93834-Replacing-the-6-cork-gas-...

In Matt's article, he says if the rivet has already fallen out on its own, then just tap for a 5mm screw/bolt. Otherwise if you have to drill out the rivet, go with the 6mm.

Here's another pictorial:

https://penforhire.wordpress.com/2007/04/

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Kurt in S.A.
'78 R100/7 '69 R69S '52 R25/2

AtsBMW
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Byron Center, Mi
Joined: 09/03/2017
Posts: 27
Thanks Kurt! Looks like a

Thanks Kurt! Looks like a project that you tackle when the gasket is completely worn out. Mine is still very functionable at this time. Hopefully this project is in the far future, but really nice to see it has been documented. Appreciate the links!

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1960 R50
1965 R50/2
1972 R75/5 Toaster Tank SWB
1994 R1100RS

dosgatos
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VBMWMO #8838
Joined: 12/20/2014
Posts: 17
It's been some years since I

It's been some years since I did this, but I remember that what holds it in is a split pin. I managed to get it far down enough with a thin-bladed screwdriver that I could hold it with a pair of pliers. Twisting and pulling got it out. I put it back in with a small hammer and it has held for many years.

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