Dave928S

^^ I've looked in every section now, and I still can't find it ... time to make some white canes and wear shades, I think we're both going blind

Strosek Ultra

Think Porsche has missed something, the famous german order does not seem to be applied here.
Åke

Tomkat80222

I'm sure I have the rubber seal as well. Roger should try to order one and see what happens. I guess without a part number he's not going to have much luck. Maybe they used this on the 959. Anyone have a 959 PET?

FredR

Is it possible my GTS, being one of the early GTS models out on the streets [August 92] did not have a wheel well liner at all and just the two blanking plates I referred?

To me it looks just how my late 90 S4 was configured.

Dave928S

PET 92 only lists wheel well shields for the front, and is silent on (rear side frame) wheel well shields as shown for pre 92, and also doesn't show GTS rear wheel well liners with the fronts as PET 93 onwards does.

Seems likely that, as it doesn't specifically mention either, then that year was a transition year from shields to full wheel well liners, and so early would have shields and late full wheel well liners. Maybe there's a tech spec/bulletin covering it??

FredR

Dave,

That makes sense as I cannot see how the shields fitted on mine could work with a full liner but...? I do have what looks to be two brackets in the roof of the wheel well to hold something but the area does not really look like there is anything missing as such..

Randy V

I'm not sure if your comments were for Fred or me, but yes, based on your picture it appears some of my annunciator lights are out.

Re. wheelwell covers - Jerry personally installed one of his first sets on my car.

FredR

OK- now it seems I have another "possible problem". After finishing the flush everything seemed fine. Yesterday I swapped over my ac control head for that from my late S4 [that now works fine]. However since the swap I seem to have developed another issue in that when I start up I get a differential alarm on the annunciator panel- accept the alarm and the light goes out but no other lamp lights up to tell e it is in a staate of alarm/not working. If I induce it, I cans still get the PSD lamp to light up.

The only thing I did since before and after was fit the ac head and part of the job I inadvertently did with the battery still connected- no idea if I grounded anything hot.

Any thoughts/suggestions? Just wondering if I did anything wrong during the procedure- maybe I need to go back in and check to ensure the level has not dropped?

Rgds

Fred

Strosek Ultra

Fred, the red car (1991 S4) do have the rear wheel liners with sound insulation at the outside. The GTS rear left liner looks this way, pictures from the internet.
Åke

FredR

Åke,

My 90 S4 did not have that and my current 928 most certainly does not. I have have had the GTS for some 11 years now so if it was fitted it must have fell apart or been left off] prior to 2005 or whenever it was I took possession.

Perhaps when this happened the PO could not get the requisite part and fitted whatever came with the pre-91 S4's? One would think such would not fit correctly given the wider hips on the GTS but...?

Rgds

Fred

Jerry Feather

Randy Pm'd me to see if I could shed some lite on something in this thread. I take that to mean about the Rear Wheel Well Liners which I put quite a bit of effort into replicating for the GTS, in particular, but also for the 91 GT and S4. I think the lite he is suggesting I provide has to do with what might have been provided by the Factory for the cars with the mounting points in the tops of the rear wheel wells, 91 to 95.

I don't have any access to Factory data, but my best guess, from information I have gained in the field and from on this Forum, is that the Factory supplied all the 91 and later 928s with full wheel well liners in the rear. I think that given the very poor quality of material that the rear liners are made of they began to fail over time, and the time probably had to do with a lot of variables and different conditions.

What I have come across in my venture with these is that given the poor quality of the Factory liners, and the cost of them, and then the lack of availability, many guys have simply replaced the full liners with the earlier S4 style splash guards (what I call them) that fasten into the front and rear of the left well and the front of the right well, and which mount to the same points as the full liners. Those splash guards do not coordinate with the full liners, as Fred suggests, but rather are substituted for the full liners.

I think the splash guards fit the wider GTS pretty well because the wideness of the rear GTS wells is mostly in between where they mount.

I seem to recall that the rear WW liners might be found in PET in an area about sound deadening or similar.

Strosek Ultra

There are two different rear wheel liners, one for the S4/GT and a wider version for the GTS. Think the liners came with model 1991 but I am not sure. For the red Strosek wide body car probably the GTS liner will fit best. I had to modify the present liner with a rubber sheet in order to get a tight fit inside the wheel well. The problem is that the liner is very brittle and almost falling apart when I try to remove it. The liners are not available from Porsche at the time being. Think we have to speak to Jerry Feather.
Åke

FredR

Jerry,

Thanks for the input- at least I feel as though I am beginning to understand what might have happened prior to my acquisition of this thing. I could never fathom out how the stock liners would fit over what I have. On the other hand the original owner of my 928 was the owner of the local Porsche franchise and doubtless they would have known little tricks like this. What I have does seem to work but I have always felt that on both my late S4 and on this 928 the noise from the rear wheel arch was a bit on the noisy side- I put this down to the fact that I run wider than stock rubber [285 or 295 on the rears] and that was the cause.

The heat here certainly finds any weakness in plastics and rubbers but ironically the front [stock] wheel well liner has stood up very well indeed and to date has never shown any signs of a problem [touching my head as I write!].

Jerry Feather

I developed the forms for my own design of 928 Rear Wheel Well Liners which consists of a pair of shells for each side rather than one shell each as with the Factory liners. I did mine in a pair of shells mainly because that is the only practical way I could form them, but the benefit is allowing for the fairly complex process of initial installation, but then for ease of partial or total removal for any reasons later; and for shipping.

These liners were provided by the Factory primarily as a means of holding some foam noise deadening material in the wells. I too provide a better quality of sound deadening material on mine consisting of a layer of Mass Loaded Vinyl which is a better noise guard than mere foam as with the Factory liners.

My Liners mount to the original mounting points, but only with a system of inner connecting brackets that I have to fabricate and provide.

Given the nature of my Liner Forms, the form that makes the inner shell is common to all the 928s. The difference is in the mounting brackets. The brackets are the same for 91 to 95, but in my attempt to provide these for the 90 and earlier cars, at least the S4s, I found that there is no place in the upper rear of the right rear well to fasten a bracket to, and I feel that there needs to be two additional points there. I haven't fully given up on a design of that last needed bracket, but I haven't spent any time on my butt studying about it either. When I do I think there is a whole new market for Liners for 87 to 90. Then, if some kind of bracket comes into being that may also open up availability for 928s before 87. That will take an additional two brackets for the bottom rear of each well since those cars don't have the angle brace holding the rear bumper cover up.

The form that I use to make the outer shell is convertible so that I can form either wider shell halves for the GTS or narrower ones with the slightly different wheel opening shape for the earlier cars.

I have some guys on the "hook" so to say about these so perhaps it is time for me to try to put my program back together and try to meet what appears to be a growing interest in these.

Strosek Ultra

Jerry, does your wheel well liners have the opening with a removable cover for the inspection of the PSD fluid container?
Åke