Is there any way to identify newer alcohol resistant diaphrams from those of earlier manufacture. I believe I'm operating my R2 on a fuel pump of early vintage and have a couple of R rebuild kits but can't remember when I acquired them. The rebuild kits have diaphrams that appear to be of uniform rubber or elastomer, while used ones appear to have an included fabric. Any thoughts as to the rapidity of deterioration of the non-resistant diaphrams with current alcohol-laced fuel.
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There may be an established way to identify the difference, I don't know. However, what happens if one of those diaphrams is stored in an alcohol based gas for a month? Would that determine if it was resistant or non resistant to alcohol-gas?[?][?][^][xx(] -
You need nitrile rubber, not neoprene. Not sure how you tell the difference. Google found this reference.
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Give it a few drinks. See if it gets drunk. jimmijimsigpicAnything worth doing deserves your best shot. Do it right the first time. When you're done you will know it. { I'm just the guy who thinks he knows everything, my buddy is the guy who knows everything.} cheers jimmijim*****SDC***** memberComment
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The 2 rebuild kits that I have are stamped in ink on the bottom of the diaphram reinforcement or support plate with the number 1-158. Is this old stock or not?Comment
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You might give Phil Harris a call at Fairborn Studebaker. But, I suspect you have the original kits considering you have the fabric in the diaphram.Comment
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