Benv

Hi All

I am busy restoring a 93 GTS that was partially stripped for parts. I found the PSD unit and a 3m roll of black vacuum line inside the car.

I can easily find the hydraulic line connection for the PSD but not the origin of the vacuum line connected to the reservoir. On the LHS underneath there is a row of clips starting at the back running to and around the firewall into the engine bay. This row of clips has an empty slots for the black PSD vacuum line.

Now I have searched here as well as physically in the engine bay but cannot find an used T-junction or point in the vacuum lines that served as the origin?

I would appreciate any help.

FredR

Interesting question- have not seen a vacuum line connected to the PSD unit but then again cannot say I have ever gone looking for one either. Given control of the PSD system is modulating and controlled digitally I am at a loss as to why such would be required.

Maybe there is some "new learning" for me here but first off I would check to ensure such is even needed. Just about to go out but if I get chance later I will take a look in the manuals for you- that or someone might be kind enough to confirm whether my suspicions are correct.

Rgds

Fred

FredR

Did a bit more checking and the only thing I am aware along those lines is the vent line- perhaps that is what you have in mind.

Rgds

Fred

Benv

thanks Fred

yes its called a vent line but i still suspect it terminates in the engine bay?

Regards

Ben

Strosek Ultra

I am going to do the PSD on the red car soon. Do not think there is a vacuum line. More info here.
https://rennlist.com/forums/928-foru...procedure.html
Åke

Benv

Åke thanks this will be useful for the reinstall, the pics show the thin black line but not the routing under vehicle

Ben

FredR

Ben,

As I remember it terminates at the back, intended to ensure the fluid, should it be discharged [over pressure protection?] goes where it will do not harm otehr than the poor SOB on a motorcycle behind you!

Rgds

Fred

Rob Edwards

Yes, just a vent line, it's about 12" long and is open to the right rear wheelwell. Here's a pic of the line, it doesn't actually run through the PSD mounting bracket, it's just tucked in there while off the car.

Vilhuer

IIRR there is one or few plastic mountings on body to hold it in place and route it to right direction.

Dave928S

The vent line is secured to the fender brace at the rear of the wheel well opening. The brace is visible when the wheel well liner is removed. The vent line is secured at the top and bottom of the brace with a small cable tie. At the bottom end it projects about 25 mm past the curve at the bottom part of the brace, and discharges to the ground from there.

ROG100

We stock rebuilt PSD's if anyone has an interest.

Randy V

Good to know. How much? Need to submit the core?

Ninespub

Randy, you have a beautiful GTS. You had the top person in the 928 kingdom work on it to bring it to top operational status. If your PSD doesn't work, get a rebuilt one from Roger and be done with it to complete your restoration. Ya cheap bastid!

Benv

Guys

Thanks for all the responses, issue resolved. And there I thought I am going to find a "cheap" vacuum leak solutiin lol.

Ben

Randy V

My PSD works just fine, thank you very much - ya silly ****.


Just always gathering info for further reference.