wopfe

I bought a second hand cowl panel covering (92857455304) for my '79 928. When i wanted to install it, it was not very clear how to do it. Does anybody have a few pictures hanging around on how it shpuld be in place? Thanks in advance!

Jerry Feather

Do you have a picture of what it is you are trying to install?

Jerry Feather

The Cowl area or Cowling of your 928 is really a compartment and not just a panel. I suppose it is made up of five separate panels leaving the top of it open to the air. The cover that goes over the open top I call the Cowl Cover. It was fashioned by the Factory as sort of an afterthought and has been provided by them in several different configurations. If you have the one provided for your car it is not much more than half of a covering. That might also be considered a Cowl Panel, but if it has a cover that will be the Hood or Bonnet of your car.

I have fashioned replacements for the Cowl Covers that are suitable for all model years of the 928., including LHD and RHD. I have also posted a thread here some time ago about how to install one of my Cowl Covers in at 90 GT. I suppose the same will apply to the installation of your Cover to your 79. Do a search about Installing Jerry's Cowl Cover in the 928, or similar title.

P.S. I bumped it for you.

Speedtoys

Dude..you sell these...seriously?

Jerry Feather

I sell the Cowl Covers I have designed and fabricated, but not any of the five or six versions the factory devised. And, none of mine would be considered a cowl panel cover, because I don't have any idea what the cowl panel is that might be covered with something, dude.

Dave928S

Here is a snip of the outer cowl panel(6), which is the outer painted part which has the windscreen wiper hole. The plastic cowl panel covers the inner part of the cowl under the hood, and is called the cowl panel covering(12) in PET. So, in accordance with factory nomenclature, yours would indeed be regarded as a cowl panel cover, or covering to be precise.

Speedtoys

92857455304 is the panel you make...right?

Dave928S

To address the OP's original question ....

There are a number of versions of the cowl panel cover. The early cars had a 'half' cover, which didn't cover the whole cowl area; the later cars had a full cover, there are LHD and RHD versions of both; and then there were covers that also had an intensive washer tank opening. Your version should be the cut down cover early version.

At the rear of the cover there is a flattish area which you push underneath the outer cowl panel (6), and it will be held in place in that position by 'fingers' which hold it up to the underside of the outer cowl panel. It basically wedges back between the panel above and the fingers underneath.

At the front it has a formed edge which pushes down on top of the panel, at the top of the firewall, at the front of the cowl recess/compartment.

A U shaped seal then is pushed down over the front across the full width of that panel, which also holds the cover on.

Jerry Feather

No, Jeff, that is not correct. Mine do not have a Porsche factory part number on them. What I make is two versions of a Cowl Cover that are each intended as a replacement for whatever original or homemade cowl cover one might need to replace. None of the factory "panels" actually even fit. Mine are made to fit the firewall and what I call the Cowl Trim just forward of the windshield, item (6) as Dave shows us; and the original ones do not fit along that rear edge.

The drawing of the item in question shown by Dave as item (12) is marked 92857455304 and is actually fairly rare. I think it was used only in about 86 thru early 87 and maybe the 87s were slightly extended on the drivers side from the one shown. I actually tried to replicate that one when I devised my forms, and I made 6 covers with it which I still have, then I used that form as one that I reversed to make the forms for the reverse versions of these Covers for the RHD cars. Now my RHD version with the intensive washer cut-out looks something like the reverse of the one in the drawing of (12), except it is extended further to the drivers side than the one shown.

I haven't paid too much attention to the original part numbers, so I don't know if all the different versions of this cover have different part numbers or not. If they are all numbered the same, it is hard to tell just which one of about 5 or 6 different versions the OP is dealing with. That's why I requested a picture in the first place.

Jerry Feather

Dave, that is a pretty good explanation of how the Cowl Cover is installed except that the 79 does not have the "fingers" or clips or tabs under the metal cowl trim piece just in front of the windshield that hold the rear of the cover up in the later cars. I think those tabs or fingers did not come in until about 84.

Also, depending on which version of the Cowl Cover the OP is dealing with, you might have included something about how to route the plumbing for the Windshield washer system.

Rob Edwards

PET has been superceded with the original part number for the early (78-82? Not sure when the move to the full cover was) cowl cover, it was originally 928 574 553 02:

Jerry Feather

I too found my pile of used up factory covers and find the same one as Rob shows ending in 02. That was the first one used by the Factory as far as I can tell. I think there was another one right after it that covered about 75 to 80 percent of the cowl area, and I guess it might have ended in 03. Then there is 04 which is about 95 percent of the cowl area, and then 05 which is the one for the 87 and later cars. Then, at some point they changed that one keeping the intensive washer provision, but not cutting it out and including a significant water trough next to the air intake opening and it ends in 00, but I didn't write down the first part of that number.

I also notice that the one ending in 04 must have come in earlier than I thought because one of mine has a Shell sticker on it that dates it back to 84 which is the first year they put the Shell sticker on the Cowl Cover, and it is the yellow sticker with red printing.

traxtar928

Jerry, I have that rare part in my 87, but it doesn't fit like I think it should (which, as you mentioned, is apparently a common occurrence). The windshield nozzle lines have deformed the opening near the blower motor. Would your cover work with my car and fit correctly?

wopfe

Jerry, Dave, Rob thanks for all your input. I think i bought a newer version of it. (the wrong one) i will report back later when i made a picture of it at the car. I think i need the 574 553 02 version.

Jerry Feather

I find that when the 04 version was extended on the drivers side to include the intensive washer cut-out it also retained the little raised rectangles at the aft corners. It was numbered 05. Then at some point the little raised areas were removed and the intensive washer provision was a bit smaller and it is still numbered 05. So there are two different versions numbered 05. I also find that the number for the very last version of the factory cover is 92857415700. That is still the version with the intensive washer provision that is not cut out.

So, if there was a 03 version, that will make at least 6 different cowl Covers from the factory. Then, I still wonder what might have been numbered 01. If there was such an animal that will make 7 different covers, and, I suppose 7 reverse ones for the RHD cars. At this point I have five different versions that are intended for all the 928s, LHD and RHD, but that includes only 6 left of the ones for which I have basically destroyed the form.