Mike, OEM service replacements were the way to go until ethanol, now Shewman makes a correct flex line that is fuel resistant. Hr advertises in the V8 Times. Don’t get the one with the check valve.
Why is the check valve a bad idea? just one more thing to fail?
I read that rubber (flexible) fuel line hose can contribute to vapor lock. Maybe just someone's theory? I am using some but have it wrapped with aluminum foil and have not had any vapor lock since. I have also seen pictures where the copper line from pump to carburetor has 3 or 4 coils, for some reason.
Mike, here's his contact info:
Robert Shewman
PO Box 163, Kimberton, PA
Tel. 610-933-6637
email: gadgiteer@aol.com
He sells original types without the check-valve and those with the redundant check-valve for those who believe fuel can drain back to the tank.
The original was made by Weatherhead, # 11009. Service replacements can still be found having a paper label with a 1941 date. This is as good as it gets for originality, but are not compatible with ethanol fuel. What happens is that the internal structure of the line softens and collapses, blocking fuel delivery. It being internal, it won't show any symptoms externally.
I like extra butter on my popcorn, please.
For flexible fuel lines I use fuel injection hose. It's definitely not harmed by ethanol.
Do you heat/soften it before putting it on the barb? I've found injection hose to be very hard to push onto barb fittings.
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Clothespins!
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For flexible fuel lines I use fuel injection hose. It's definitely not harmed by ethanol.
You are probably using SAE30R9 spec INSTEAD OF SAE30R7. 30R7 has the same ethanol characteristics as 30R9 but designed for low pressure (carburetor) use