Classic cars forum & vehicle restoration.

[john-saab]

I have a petrol filler cap that uses a large "rubber washer" to seal the cap onto the filler neck. The "rubber" has perished and I would like to replace it. I use the quotation marks as i'm guessing the seal is made from something more than standard rubber (1960's car) what could I use to make this washer..it needs to be unleaded fuel proof and long lasting?
Would Nitral work or will normal rubber do?
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Rust Junky & oil addict.

[ukdave2002]

I had a similar challenge some time ago; found this link:

http://www.par-group.co.uk/rubber-polyurethane/

Dave

[john-saab]

Excellent and fast work Dave..Nitrile seems to be the material of choice!
Thanks again!
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Rust Junky & oil addict.

[P3steve]

Had to get a new large "rubber washer" for the petrol cap on my 1949 Rover for an up and coming MOT and for a quick and temporary fix as I didnt have time to order one I cut one out of an old inner tube 5 years later its still in good condition showing no signs of perishing.
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If the world didn't suck we'd all fall off

[richardlw]

My Corvair uses a cardboard disk over a slightly conical brass springy disk.
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Richard's Cars - NEW **
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[baconsdozen]

I made a 'temporary' replacement accelerator pump diaphram for my transit V4 a couple of years ago from a nitrile glove. Its still working.
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Thirty years selling imperial hand tools for old machinery(Now happily retired).

[47p2]

[roverdriver]

Well, leather is an easy fix. I needed something similar for a steel can that I use for petrol, and simply cut some leather from an old boot. (I live with the philosophy of 'throw nothing away, it will come in handy some day'!)
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Dane- roverdriver but not a Viking.