Does your boost gauge make a noise?

[newsh]

I think my boost gauge is making a squooshing noise. It seems to happen if I come off the throttle slowly as low RPM, I've thought for ages that it was the sound of the DV but it actually happens quite loudly as the gauge drops from 0 to -0.5Bar so in vacuum. No noise on boost though so not a "normal" kind of a leak. Weird

If I put my hand over the gauge (which is in the centre vent) the noise definitely get quieter.

[4WheelDrifter]

I think I would un-plumb the gauge and plug the hose temporarily to make sure it is the gauge, then go from there.

[Rusty]

It's to discourage you from driving off boost

[newsh]

I think I would un-plumb the gauge and plug the hose temporarily to make sure it is the gauge, then go from there.

Good plan

[Lloyd]

Yes, my boost gauge used to make noise. Easy to fix.
Just get and fit a T piece with a bore reducer to the gauge.
I will see if I can find a link.

This partially reduces the volume of air going into and out of the gauge and makes it silent in use.

http://www.newsouthperformance.com/tubing.htm

[4WheelDrifter]

I remember Bo had a strange noise from his dashboard, when switching from boost to vacuum. But I can't remember what the cause was in the end. I had a feeling it was something to do with the AC recirc actuator.

[newsh]

It's definitely the boost gauge, I removed it and capped the pipe and it's silent, can't believe I've been attributing this noise to the DV all this time Kept thinking there must be a hole somewhere in the bulkhead letting the noise through!

I had one of those no-buzz T pieces somewhere but cant find it, I'll get another one ordered and see if it fixes it.

[newsh]

Fitted the No-Buzz T piece and the noise is gone! Silent! Now I miss the noise though so will have to fit a dump valve...