Martin S.

I put this up in December of 2004...man how time flies...happy to say I still have my 993, although it has morph'd into a 99% track car...see attached ego pic and see me beating up on a 911SC, a bunch of Boxsters and a 944 Spec Racer. Somebody has to do it!

Jay J

Maybe I should just buy this part to be preventative

Kika

If you support the existing part with an appropriate sized spring, you'll never have to worry about it again.

therossinator

Double check that the passages are clear of the spring by blowing into each one. One of mine was a little blocked so I rotated the spring inside.

Martin S.

Now this is an ole thread....we were having some fun back then, 2004 I believe...

Gbos1

sunscribed..good thread!!

pp000830

How to check Varioram:

• Start car run for few min.
• shut off engine
• Open engine lid.
• Have friend in driver seat turn ignition on w/o starting engine.
• Stand behind car and observe 3 actuators on the intake manifold, two on top and one underneath behind the blower duct.
• They should all cycle once as the ignition is powered up.
  if not the one involved probably has a leak. Also the solenoid valve controlling air flow to individual actuators can be bad causing a good actuator to not cycle but this is much less common.
• If everything cycles your system is functioning normally

.

A bad actuator can produce a large vacuum loss.
I tested mine by attaching a short length of hose in place of the one on the individual actuators and see if I could suck air with my mouth. Also the actuator on the ductwork to the lower left of the engine can introduce a vacuum leak and the one behind the CCU in the dash. The one behind the CCU in the dash can be checked by listening to it while cycling the air recirculation button on the CCU with the ignition in the on position. You should be able to hear it cycle clearly, if not the hose to it may have slipped off. Just pull the CCu out without unplugging it and take a look.

GBX

in deed it is! Has anyone who replaced theirs with a new part had it collapse again after 10 years?

I plan to replace mine this weekend.

fnckr

Bumping a good thread. Just checked mine. I have the updated part, so all good. It's a quick inspection with a flashlight.