Toaster Gas Tank Seal Replacement

[MikeGeee]

Hi All,

So I share my garage with my girlfriend and she's constantly complaining about the mild gasoline aroma coming from my 1972 R75/5 Toaster.

I purchased a new gasket, a new rivet and a new washer (part numbers 16111230603, 07119904207, 07119944651 respectively). These are all the parts I can image would need to be replaced. But I can't figure out how to get the old gasket off. I'm not familiar with rivets. I've never worked with them before. Should I drill out the old old? Is there some trick?

I'd love some expert advice on this.

Thanks as always,
Michael

ps, photo of new parts attached

[Seth]

https://forums.bmwmoa.org/showthread.ph ... asket-on-6

or

http://w6rec.com/duane/bmw/tank/index.htm

[SteveD]

The cap has a gasket under it to seal fuel. A rivet is pressed into the cap to hold the parts in. It is hard to remove. Some gently grind flats on the sides so that pliers can get a good hold on it and rotate while pulling it out. Some owners tap the hole and install a screw. That makes it easy to repair in the future. I suggest using Locktite on that screw. If it falls into the tank, it is hard to remove again.

[George Ryals]

The mild gassey smell may not be from the gas cap seal leak. it could be from a weepy fuel line.

[Zombie Master]

The mild gassey smell may not be from the gas cap seal leak. it could be from a weepy fuel line.

Or a bad float chamber gasket.

Or a leaky tank seam. Wich is common.

[Wobbly]

Besides all those comments on sources, the fuel cap has an open breather vent. Vapors would be escaping from the breather as well.