Toaster Gas Tank Seal Replacement

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MikeGeee
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Toaster Gas Tank Seal Replacement

Post by MikeGeee » Fri Apr 27, 2018 1:26 pm

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
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1972 BMW R75/5 Toaster
1976 Honda CB200t
1948 Harley Davidson WL45


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SteveD
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Location: Melbourne, Oz.

Re: Toaster Gas Tank Seal Replacement

Post by SteveD » Fri Apr 27, 2018 7:03 pm

Duane wrote: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.
Cheers, Steve
Victoria, S.E.Oz.


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George Ryals
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Re: Toaster Gas Tank Seal Replacement

Post by George Ryals » Sat Apr 28, 2018 9:35 am

The mild gassey smell may not be from the gas cap seal leak. it could be from a weepy fuel line.
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Zombie Master
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Re: Toaster Gas Tank Seal Replacement

Post by Zombie Master » Sat Apr 28, 2018 12:52 pm

George Ryals wrote:
Sat Apr 28, 2018 9:35 am
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.
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Wobbly
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Re: Toaster Gas Tank Seal Replacement

Post by Wobbly » Tue May 01, 2018 9:33 pm

Besides all those comments on sources, the fuel cap has an open breather vent. Vapors would be escaping from the breather as well.
After 20 years as a professional bike mechanic and 30 years as an engineer I know just enough to be dangerous !

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