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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Jan 2014 Posts: 3,677 'Bolter | | 'Bolter Joined: Jan 2014 Posts: 3,677 | The rubber inside is unlikely to have any ethanol resistance, whatsoever. However, I am increasingly skeptical that modern rubber is really any better. In many cases, it’s much worse.
I’d be tempted to run it and see what happens.
I have had decent luck with NOS rubber stuff in other parts of my truck. I’ve yet to try anything that touches fuel, however.
Wonder if you could buy a new diaphragm without a whole new rebuild kit?
1951 3100
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