trip75

Anybody have an extra alternator cooling hose i can buy? Mine is trashed.
My TB job kind of drained my cash so i am looking for a cheap one so I can drive my car, I'm very anxious!
Thank-you
jason

ROG100

I think you would be fine driving for a while without the cooling hose.
You should get one ASAP.
I've seen plenty of cars without them or they were trashed such that they were not providing any air to the alt.

Richard S

Jason, is the portion inside the fender OK? If so, remove the whole hose and cut off the trashed part. Next, buy some el-cheapo flexi hose at the local auto parts store. It will probably be slightly smaller in diameter than the stock hose. Use the good portion of the stock hose to connect to the alternator, then insert the new hose into the old and tape together. Then route the whole assembly back into the fender area. Quick, cheap and easy fix. I did this to my 79, it worked just fine.

Rich

Andrew Schauer

Try an VW shop, if there's one nearby. The stuff Beetles use for their heat-exchanger/heating system is a pretty close match in size.

Alan

If I had to replace mine I wouldn't use the stock hose - its really pretty crappy stuff. Measure the hose ID (or alt shroud OD) and find something better. You do need a spiral wire hose so it won't collapse in the tight bends... but I'd go for maybe a wired fiberglass hose with internal/external neoprene sheath - should stand up better than stock and probably be cheaper. Should be easy enough to get the temp sensor in the other end (inside fender) just like stock and I'd attach to the alternator shroud with a banjo clip - which should work much better on the neoprene than on stock.

Alan

SharkSkin

I bought replacement hose here. It's high quality stuff, and should last a few years IMHO. 928 International also sells replacement hose, but I don't know construction details, etc. I went here because I also needed 1.5" hose for my Delco alternator shroud.

trip75

thanks everyone for your help. sharkskin i went to your link $6.00 per foot hell yeah, thats a lot better than 50 bucks.

cambria

I bit the bullet and got the $50 stuff at 928 International. I looked at just about everything and most heater duct is very light. The expensive stuff is heavy and well made.

SharkSkin

It's probably the same stuff either way, and about the same price by the time you get enough to go up into the fender. I went with the other source because I wanted 2" instead of 2.5". My original plan didn't work out, but it turns out that the smaller stuff stays snug *inside* the alternator shroud.

dr bob

Dave--

To maximize the effective flow velocity through the smaller hose, and especially where the smaller hose transitions to the slightly larger alternator shroud, you really should add a venturi. Get a curved one, and find one of those Tornado flow twisters to get the flow out to the edges of the hose where it will do the most good. Venturi first, then the Tornado. (But you knew that I'm sure.) Make sure (this is CRITICAL!) to get the left-hand twist on the Tornado, so there's no horsepower lost when the alternator would have to spin the air in the opposite direction. Remember that the air comes in the back of the alternator, so the spin is opposite what you might think just looking at it.

SharkSkin

Bob, obviously great minds think alike. I have considered these factors, and after extensive wind-tunnel and dyno testing with both the Tornado unit and the Turbolator, with individual thermocouples on each diode and the data fed into a fluid dynamics model derived from the juxtaposition of the two most prominent computer models that prove and disprove global warming, I have decided that the maximum benefit will be obtained by inserting an e-ram in the alternator cooling hose which will be activated at any temperature above 92.8°K. Except of course during blue moons and eclipses, which will be detected by an advanced calendar algorithm and at such times the left headlight will raise independently of the right headlight and the lens will pivot out of the way using the light pod as an additional ram-air intake for the alternator cooling system.

Alan

Incidentally I was in the drivers fender this weekend, and relly pissed off to find the speednuts and mounting dimples broken off the new (well <12 months old front splash shield) Nothing else has happened to the shield - just that now once again the alt hose is lying on the febnder floor).

Now at this point I had a few words for the imbecile who designed this POS... I'm sure Porsche trained the junior engineers on the stuff that isn't that important and that the owners will never see....

Anyway I decided enough is enough.. I'm not fixing that thing again...

So I decided to screw the mounting bracket to the cross-support in the fender - the other side from the splash shield mounts there are brackets already... the inboard one doesn't allow enough clerance to the headlight pod - but the outboard one works and I just added another angle bracket to approx the middle of the support and now don't need to fiddle with it at when taking off and replacing the splash shield since it just sits there out of the way. This is so much easier.

Alan