Possible Ethanol damage to a diaphragm.

[pugaltitude]

Damn good question! I just pickup a non-running mower. As I took it part i found
this diaphragm. Not the frist one like that. The tank was rusty.

Our gas is refined in Oakland, Calif. and piped up here. I have never heard of any
non-ethanol gas around here.
Just saying.....

What causes metal to rust?

 

[jakeamondo]

Do a internet search for "ETHANOL PHASE SEPERATION". Very unstable