Secondaries actuator solenoid valve

[A26B]

Originally Posted by S.hafsmo

Well that's a bit disappointing. I was just about to buy one of those. Surely there must be solenoids one could modify for the purpose? I assume these are molded shut/not serviceable?

They're not expensive and a little bit of vacuum leakage can still be compensated for by the Vacuum pump as long as there are no other significant vacuum leaks in the system. Maybe you will have better luck than I did regarding vacuum leakage.

They weren't intended to be serviced, but they can be taken apart by bending the metal tabs on the end. The internal parts of the valve itself can be removed. My thoughts are to try & modify the seat to seal better. It's been a couple of years since I had one apart but I seem to recall the seat looked like a small piece of cardboard which I was thinking about replacing with a piece of softer, rubber material.

If valve end can be modified to seal, the same technique could be applied to the original solenoid valve too, as long as the electrical solenoid is still functional.

All is not lost, just needs a little McGyver tweaking.