924Board.org

isuras2 · Joined: 17 Jun 2005 Posts: 458 Location: Phoenix, AZ

Is there something to hook the vent tube from the front of the engine bay to the alternator to direct the air flow? I have the plastic connector from the front of the car to the tube, but am not sure about whether the tube connects to anything or just ends around the alternator.

Thanks,
Rob
'80 924 NA

Ozzie · Posted: Fri Jun 24, 2005 7:36 am Post subject:

There should be a cover over the rear of the alternator that the tube fits on to.
Part 046 903 187 A
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Porsche 924 1984 (UK import) NA
Its AUTO and its BLACK
Montego Black on black/red
Engineer of Electro/Mechanical Systems Maintenance

Codyboy · Joined: 27 Apr 2005 Posts: 74 Location: Edmonton Alberta

I am not sure if i am thinking of the same thing. But mine had a plastic piece that was mounted around the rad and hose ran from it to the altenator. But may dad one day took it off maybe thats y having charging problems now

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Go hard or go home

D Hook · Joined: 02 Nov 2002 Posts: 3158 Location: Omaha, NE

There should be a cowling that covers the entire back of the alternator and has a duct on the top that will accept the hose. Sometimes these get removed by the previous owner and lost. Is it in the spares you got w/the car? If not, someone here on the board may have one. Or Kurt up in Tecamah (sp?) may have one.
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'80 924 n/a SOLD

MALUKIA3 · Joined: 13 Dec 2003 Posts: 82 Location: NY

I'm certainly no expert, but in my experience, this is not needed. Replaced my alternator with an aftermarket (non-porsche) almost 7 years ago. The metal cowling that was mounted on the back wouldn't mount to the new one. I left it off. 7 years and 60K+ miles later it still works fine.

Don

79 n/a

augidog · Joined: 03 Mar 2003 Posts: 1360 Location: New Jersey

I have to disagree.
I took mine off and my regulator fried within a year.
I bet yours is shot now because the cover was missing.
A cheap easy repair with 2 screws.
The alt is so close to the exhaust manifold that sucking in all that warmed air can't be good.
I'm glad yours is still working Don.
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1978 924 95 mile daily driver.
Audi TB/POR174M/High Flow Cat/2.25" exhaust
I knew that positive thinking thing wouldn't work.

82-924 · Joined: 30 May 2003 Posts: 75 Location: Long Beach, CA

When I got my car the hose and the alternator hose attachment piece were missing. I wasn't having any problems but I wanted to replace it simply because it was suppose to be there. I got the alternator hose attachment piece from a member of 924.org. The hose came from Autozone. A VW part, I think. Just a flexible air conduit. It cost less than $5.00. Then I found a silver (unpainted) one at some other auto parts store. I liked the look better. Anyway I still have the black one in near perfect condition, if ever needed by anyone.
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1982 924 n/a

jopather · Joined: 16 Jun 2005 Posts: 58 Location: California

I'm pretty sure I've got one of those rear alternator covers somewhere in my garage. Let me know if you want me to look for it.

-Jonathan
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1978 924
My car - a hole in my driveway where all my paychecks go...

isuras2 · Joined: 17 Jun 2005 Posts: 458 Location: Phoenix, AZ

Thanks Jonathan, but I got one from a guy locally. When installing it, I can't make it a tight fit because of a ground wire from the back of the alternator to the engine, about 6" or less of wire. Do I need this to be connected or can I disconnect this to make the cowling tight on the alternator?
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Rob
'80 931 (sold)
'80 924 NA (sold)
Former Omaha Crew

82-924 · Joined: 30 May 2003 Posts: 75 Location: Long Beach, CA

Won't it connect to the bolt on the outside of the cowling? That's what I think I did.
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1982 924 n/a

isuras2 · Joined: 17 Jun 2005 Posts: 458 Location: Phoenix, AZ

I was thinking that, but wasn't sure. I'll try that.
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Rob
'80 931 (sold)
'80 924 NA (sold)
Former Omaha Crew