Mazda Rotary Club

General => General Technical => Topic started by: Blatstar on August 08, 2006, 01:30:43 PM

Title: Turbo Goes Screeeech
Post by: Blatstar on August 08, 2006, 01:30:43 PM
Hiya.
Have any of you dear folks experienced a high pitched "screech" :eek: I presume its turbo related. It happens when the revs reach circa 2700 rpm, disappearing just before 3000rpm whilst accelerating. I was thinking maybe a hose working loose and leaking / screeching or bearings on the way out, cant see anyting loose though and it only seems to make the noise whilst under load, ie there is no sound whilst bringing it through the revs whilst stationary making it a pain to isolate. Any ideas gratefully received? TIA
Title: Turbo Goes Screeeech
Post by: allstaruk on August 08, 2006, 04:32:08 PM
Have you still got the air pump that could well be the cause.
Title: Turbo Goes Screeeech
Post by: nikp on August 08, 2006, 04:43:27 PM
Yeah, could well be the air pump - good call Alan. :)
Title: Turbo Goes Screeeech
Post by: AshRX on August 08, 2006, 04:45:38 PM
Thats what mine used to do too.

If you havent got the cat anymore, just unplug the wires from the back of the air pump and this will stop it working
Title: Turbo Goes Screeeech
Post by: Blatstar on August 08, 2006, 06:20:00 PM
Thanks for the pointer.
I\'m running a pretty standard car though and, yes the air pump is in place, will give the wire disconnection a go, cheers for the idea.