· Premium Member
There is very little rubber inside it. Front seal, as mentioned above, and the seal over the button for the microswitch. Plunger for the cold start is plastic, can swell in oil. But you can test that. If stored indoors in a mild climate, I wouldn't worry much. Turn gently by hand, remove barometric capsule "base" and look inside for corrosion. If it looks good I'd use it.