John Veninger

For the PSD.


Beautiful, simply beautiful!!

atb

Nicole wrote:

>>>>>>1. What is the reservoir we're seeing in the picture?

Is that PSD related? I don't have one in my '88.

atb

Oops, didn't realize we were on our third page on this thread.

Louie928

Nicole,
The reservoir is for the PSD unit. 928s '90 and later will have it. The lining on the inside of the fender is Dynamat (sp?). A sound dampening material I had installed some years ago when this thing could move under engine power. I will install a full inner fender liner made from aluminum sheet. The fender liner will protect the inner fender from abrasion and give me an air duct above to route the cool air from the air intake back to my oil cooler.

Robert_H

Louie,

Those are very well done. Very aggressive, yet classy in appearance.

This might be a stupid question, but would having an aftermarket fuel filler cap and extension have any affect on the California smog tests (there is gas cap test)? I am assuming that the test just checks for the venting and not for originality.

Rob

Louie928

Rob,
Good question and one I had thought of too. You can use the stock gas cap and door. Cut out an opening in the fender (scary thing to do) and bond the cut out fender piece to the original door. It's not that simple and there is some fitting and spacing out of the original door hinge mounts. I tried it and you need a 1/4" spacer under the top hinge mount and a 1/2" spacer under the lower hinge mount.

The stock gas cap doesn't have a seal integral with the cap so there is nothing that can be checked in the cap for seal integrity. The seal is made between the underside of the cap and an O ring type gasket at the top of the tank filler just above the threads.

The flush filler on the fender is a Mocal "Aero 300" series. I bought it from BAT, http://www.batinc.net/main.htm. It's lockable, and the cap is sealed by an O ring between the removable cap and the flange that is bolted to the fender. The tension on the seal is adjustable too.

Now, the only thing left is to seal between the flange and the tank opening. The flange has a stub that a 2 1/4" hose will fit over. I had made a mold and cast a piece from urethane that was a replication of the 928 filler cap, but with a stub for the 2 1/4" hose to fit over. Unfortunately, there isn't quite enough room to use that. The next step in the solution is to make a transition piece (adapter) that will fit over the 2 1/4" stub on the filler flange and go inside the tank opening. I'll make a mold and cast the adapter from flex urethane. The tank opening/transition piece seal will need to be a semi-flexible seal that is impervious to gasoline. Yamabond 4 would work, and I've experimented with some others (3M brand) as well. This should seal the tank tight, or as tight as it ever was. You can't use permanent adhesive on this adapter piece because it may have to be removed. You'd have to remove the filler flange, and the adapter hose, to access the bolt that's above the tank filler which attaches the gas tank to the car.

Hope this answers your question, but maybe more than you really wanted to know. Bottom line is that DEQ can't check the seal in your 928 cap because there isn't one. This shouldn't be any different.

Robert_H

Louie,

Thank you very much for that reponse. It answered my question perfectly.

Your website is very informative, I must have read everything at least twice. Thank you for all of the work and dedication you do for us.

Rob

bcdavis

Awesome job!

Nicole

Interesting... My car is a 91 and I had the fender liners out for cleaning before, but never noticed it. How is one supposed to check the fluid and top it off? Looks like it's so well hlidden that people skip it, then Porsche can sell them a new PSD for $3,500. Gosh, these guys are brilliand business people!!!

Louie928

You do have to take the rear wheel well liner out to check the PSD, and I do think few have been serviced. The fluid in mine looked like chocolate milk when I checked it. I knew a GTS owner who went to check his PSD and it wasn't there.

Jim_H

Ouch!

Louie928

Think of it as a PO who needed money and sold a kidney.

Bill Ball

Louie said:
"The stock gas cap doesn't have a seal integral with the cap so there is nothing that can be checked in the cap for seal integrity. The seal is made between the underside of the cap and an O ring type gasket at the top of the tank filler just above the threads."

Well, then that explains why my cap failed on the last emissions test. They put the cap onto some kind of vacuum/pressure tester and it came up no seal. They tried several times. They were going to fail the car and tried to order a new gas cap for me, but, of course, they could not get a cap. They hemmed and hawed but finally let it go with my assurance that I would get a new cap ASAP. Of course, I'll have a much larger issue with the visual inspection at the next test.

Jim_H

Saw this in Louie's sig-

'87 5 spd mostly stock

I doubt Louie has silverware that is stock.

heinrich

I want to see front views also.