Please does anyone have a photo they can post of how the hose is oriented under the sprung bracket that is screwed down at front side of splash shield?

I've removed the liner and splash shield to clean them thoroughly (black bumper paint makes them look nice too), and can't figure out correct attachment! Presumably loops up then end of hose points down but it will be a little awkward securing it before re-attaching the shield so photo will be very helpful.

Thanks a lot!

Adrian

 

No photo handy, but that description is exactly correct. And yes it's a bit of a challenge getting it all back together. Hint: disconnect the alternator end so you have a little room to move the shield into place. It's a slip fit on the alternator end. Be carefull if the hose is oil- or power steering fluid-soaked, as that will weaken the hose and might allow it to tear/split while you are pushing and pulling on it.

 

Here you go

 

Roger has a replacement hose, and it's much better quality than the stock hose. Do yourself a favor and replace the hose.

 

That's brilliant thanks all. What a great tip from Dr Bob about disconnecting the alternator end. I was down there recently doing timing belt so I know the hose is dry and no PS leaks, but I have the under trays on and have a horrible feeling I can't get to back of alternator while they're on! I hate putting the trays on and off...

 

Yippee I have just taken a look and as I have wheel off to take out liners, it looks like I can slip hose off alt by reaching around the lower control arm at edge of front under tray

 

this thread
https://rennlist.com/forums/928-foru...placement.html
shows how I did it such that the splash shield is no longer involved - much easier to avoid the splash shield eventually breaking up, and easier to remove for other work.
jp 83 Euro S AT 56k

 

Adrian,

If you have the original hose still in there do yourself a favour and get Roger's replacement hose. I do not have to worry about rain so I simply stuffed the sensor in the end of the hose and laid it in the bottom of the well. The inverted loop is a bit obvious if there is a lot of water around- I think it rains occasionally in the UK?

I have a feeling Roger's hose may give you more length to play with but it should not be too difficult to manipulate. When I removed my original hose it was in a rather disgusting state, partially collapsed and may well have explained an earlier alternator failure- fortunately I had a spare unit.

Rgds

Fred

 

Thanks for suggestion Fred and yes we get the occasional shower here!

I can compare the condition of the hose with that on the S4 I had previously. That one was in a shocking state after a PS fluid leak - soggy and torn.

In comparison the one on my current S4 is in excellent condition, and I've replaced the PS lines to the reservoir so things stay bone dry. So for now I will keep it in service but will get Roger's hose if it needs replacement in future.

Best

Adrian

 

I echo what JP says. The stock hose end UU mounting point is quite crap and a stupid idea (ask me how I really feel...). This was an amateur hour production that is crying out for a better solution. Mount the host to the cross member and not the splash shield - what on earth were they thinking (or drinking) here.

Alan

 

So the guys on the production line have the fender liner piece on the table, and assemble the hose to it with the thermocouple sleeve in the middle and the double-hoop bracket holding the hose in proper position. The dangly end of the hose is loose. Now, pop that whole preassembled mess almost into position. Slide the dangly end of the hose through the opening toward the alternator. Assemble the electrical connectors. Liner panel moves forward to final position, and the mounting screws are installed.

I think we often wrestle with partial disassembly of things on the car that really can be done more easily with the whole assembly on the bench, kind of the reverse of how the car was originally put together. For instance, there's some magic threshold of difficulty getting to things, beyond which it's easier to pull the engine for easy access to everything. A lot of our "What were they thinking?" questions have relatively easy answers when you consider what they needed to think about. That fender liner piece will never need to come out in the expected service life of the car. It's only when the car sags after thirty years, and the owners crash into parking bumpers and curbs a few times, that the liners are broken and need to be replaced. Or in Adrian's case, the appearance needs to be refreshed for some display time. Bottom line is that the fender liner isn't considered a service or wear part, so ease of access was less of a concern.

 

That makes great sense Dr Bob. The suggestion to add a bracket mounted behind shield just for the hose bracket is smart, but I am too lazy to go to that trouble for an item as you say removed once in a blue moon.

Later on I'm just going to loosen/remove bolts on front left tow bracket so it swings down and I can pull hose all the way out, and just as you say assemble the hose bracket to the shield away from the car. Easy to push hose back through with tow hook down, then button everything up.

 

When I did mine I bought 2M of hose, and used almost exactly half, so 1M will do it . I got my hose from a hose place like Pirtek . I think its 2 1/4" or 57mm - there is a whole thread on this issue. Get Roger's stuff and be done with it.
jp 83 Euro S AT 56k

 

Well having said I wouldn't go to effort of fitting a bracket just for the cooling hose, I ended up going some way in that direction.

I dropped the tow hook, pulled out the old hose (I have ordered new neoprene hose as on inspection there were cracks in old hose, and neoprene will be more durable than the original cloth), and screwed it to the splash shield so I could test how easy it is to fit that way.

Not very! The splash shield just drops into place without the hose attached, but it's a real struggle with it attached, and it feels under a lot of strain. I gave up trying to get it into place in case it broke a chunk off the shield. Maybe the old hose loses a lot of flexibility over time?

Much easier is to use the "spare" hole at left of horizontal stay to screw in one side of the UU hose bracket, drill a 5.0mm hole in the stay, and attach the other side of the bracket using a tie-wrap.

Photo shows the set-up. This is just temporary test fit. Should get new hose in couple of days then I can cut it to take the external temp sensor and re-attach the sensor plug. Maybe Porsche fitted the hose to back of splash shield to avoid risk of fouling the headlight yoke? In the photo the hose looks close, but in fact there is ample room.

 

now would be a good time to replace the hardware thats rusting at the fender to PU mounting,
NOTE once the new hardware is in place coat the assembly with SPF 50 its used to coat the internals of the aircraft structures.
NOTE spray with PB blaster then wire brush the screw threads so the nuts will come off without shearing the studs.