Poulan oil pump diaphragm material
- Thread starter msmmce1
- Start date
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You want to track down some Buna-N/nitrile (nylon thread insert) sheet stock. 1/64" thick. There may be some suppliers on eBay. Make certain it is nylon insert, as it won't stretch and is very tough. If you are close to a gasket/membrane supplier they might have something similar.
It is advisable to make new gaskets and carefully clean the pump and check valves when putting it back together.
I've never cut an OEM one in half to see. Regardless, the material is not to stretch. Carb diaphragms are made of the same material, albeit thinner. I am not sure how the OEM ones were manufactured, but the material works better than OEM. Regular (non-insert) will stretch like a balloon. FWIW, here is a link to a post I did a few years ago.
https://www.arboristsite.com/community/threads/poulan-thread.98495/page-2030#post-5931213
https://www.arboristsite.com/community/threads/poulan-thread.98495/page-2030#post-5931213
I do like them custom cut!!
Even can make a good blinding type diaphragm for vacuum & pressure testing the crankcase...note that one hole is missing in the left one.
thank you
