Was there an air deflector on the back of the unit?

Be sure to hit those connectors with a nice burnishing tool so as to provide nice shiny conductivity (coat 'em (lightly) with dielectric grease, maybe)..

Noticed the "darkness" on the "aqua-colored" (?) wire....whatzup there? Should you sense a heat fatiguing process, do cut it back and reterminate.

Sounds like your housing survived (a good thing...), and is in good service, no? Loose bolts are a welcomed fix, no?

Looks good,.....and thanx for sharin'.


Best,

Doyle

THere should be a push on connector for that black wire, at the bottom of the alternator. At least that is how it is on my 80SC

There should be a few places local to you that will service your alternator. Rebuilt Bosch units are pretty unreliable, from my own and others' experience. Ask your local shops where they send alternators. Another thing to do while you have everything out is to make sure the ground cable is securely attached to the engine case and in good shape.

there was no deflector at all...now im nervous :|

i just rechecked the alt, there arent any push connectors at all on the unit...all i have are those three threaded prongs.

there are 2 push on connectors but they have wires comming from the square box thingy.

Kemo,

The air deflector directs some of the air over to the left bank of cylinders. The natural air flow from the fan rotation tends to push the air to the right. You should find a source for one and install it when reassembling the fan and alternator.

Steve, The 78 should have originally had an external voltage regulator on the electronics console. YOurs (as well as mine) has been replaced with an internally regulated altternator. That is what is hiding behind that large, ribbed heatsink. The black connector is the feedback wire from the external regulator and the alternator. Since yours has been replaced it can just be taped off and secured. Don't worry about it. Autozone can get you a lifetime warranty replacement if the alt is bad. If it is bearings, try TX alternator and Starter. They are on Rundburg and I35.

The square box item is the voltage regulator - can't comment on the orphaned wire tho'.

Nice job BTW, it took me 2 days w/o the paint between goin' slow and interruptions - maybe I can blame it on the 38 degrees in t he garage? I glad for you that you found it.

And on my 87, the funnel duct / deflector looks like this (mine's dirty).

http://forums.pelicanparts.com/uploa...1231035752.jpg

How many miles do you figure you've driven sans the rear air deflector?

Brian

good advice here...ill source one asap

Thanks for the tip...i had no idea that Autozone could source an alternator. Ill start there. So I have an alternator with an internal regulator. How should I order this so I get a replacement that will work? Autozone hasnt always got the part right in my experience. However, if I can get it thru them or Advance, that would be great. I like the writeup on your recent breakthru with your silver ST. good job there :)

I bought the car about 9months ago and since then have put very few miles on it. Unfortunately, I have no idea how long its been without the deflector

thanks for the nice visual on what I need. You wouldnt happen to know what years are compatible with my fan housing? most likely, ill get a used one if i can.

You should be able to find a used funnel on PP.
Be patient when installing; use small flat- and lock washers and don't overtighten or the plastic will break.
The brown wires are ground.
As an additional ground, Porsche came out with a Bulletin advising to install a wire between engine case and alternator ground.
Just use a #10 wire about 16 inches long with appropriate eyelets to fit any of the top case bolts and alternator ground.

Check the top of the cylinders for debris with the help of a light and mirror.

It's irrelevant. What's done is done. Just put one on.
Just look up alternator rebuilders in the yellow pages.

there is an existing ground wire that was underneath the brown wires. Its not real evident in the pics. It was under the brown wires

I did not want to start another "fan rubbing" thread so will add my question to this one. I noticed in the last year or to that there is a slight rubbing of the fan in a about the same place but far less severe. What I noticed is there is a single blade that is the blade doing the rubbing. The two adjacent blades are VERY slightly rubbing. I partially removed the housing and don't see any obvious cracks and the alternator sounds quiet when spun. I was thinking if there was something seriously off more blades would be rubbing....but maybe I'm wrong. Does this look like a situation where the blade itself is the issue?

If you remove the alternator from the housing you will be able to inspect it better for cracks.
Love the old post's.