Quote:
Originally Posted by Woody1911a1
question i have after looking at polex's diaphram pics is what do everyone elses look like ?
all 3 of mine look somewhere between the good ones and the bad one . the rubber is still quite pliable and they aren't perforated.
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The diaphragms should be smooth, not wrinkled or dimpled, and relatively shiny if you clean them off with a rag and a bit of gasoline.
Polex's bad diaphragm shows dimples where the rubber is scorched and hardened and no longer flexible.
It will work for a while but eventually crack where the rubber is hardened. Also, the vacuum response will be a bit off on that cylinder due to the stiffening of the diaphragm.
Jim
