911 fan kit

I need to take the alternator off my 1776cc VW engine. When I purchase the car it came with the 911 fan kit. I need to replace the alternator and I was wondering if someone knew where I can get instructions of how to get the alternator off?

Hey AJ, Was the alternator the cause of your stalling at idle when you turned the headlights on? Was it low output? How did you figure it out? I'm sorry I can't help with removal but I was wondering what the outcome of the situation was.
Ed

Okay.......
Not all 911 fans are the same.

Is it an original assembly, from a Porsche, or some aftermarket repop made to be sold for a profit??

You can tell easily by the 901/911/930 prefixed part number on the fan ring, or if you have a pic I can tell by just looking at it.

If it is an original, you will have no problem finding the alternator, but you MUST get the same part number as the old one. There were 4 different amperages of alternator on a 911 35,55,75 and 90 were the sizes. each alternator and ring assembly MUST MATCH EACH OTHER or you WILL have problems with even making it work.

If the alternator/fan assembly came from some aftermarket company, the chances are you will have to buy an alternator from some year of VW Golf, and make the mods to make it fit...

Good luck.

And to more directly answer the question..
Remove the fan belt, remove the strap that holds the assembly in place, and take the entire fan ring off, then the alternator unbolts with 6, 6mm nuts on the backside....pay attention to the wiring diagram and it all goes back in the same way.

Edwin yes I am sure its the alternator. The battery is good but not being change when the car is on. I hope to get the alternator out and see if I can get a new one. Now I just have to figure out how to get it out. I have see instructions on the net but its for an original 911 engine but the parts and process look about the same.

Jake I found the manufacture its a Bernie Bergmann.

Some of the VW type 1 911 cooling kits (cheaper ones) use modified VW Golf (or whatever) alternators which are not designed for this application and may fail. The good (and more expensive) kits use a Porsche 911 alternator. Pay now, or pay later...

In talking about fans ect. does anyone know what a good range for head temps. to be in? I know these temps can vary with driving style and outside temps ect. but what's a good highway cruizing speed head temp.? I'd like to know when to change back over to the 356 pulley setup.

J-P

You want head temps under 350 F, preferably lower - say 275 to 290 F. Just watch your oil temp and switch back to the smaller fan pulley when oil temp starts creeping up beyond "normal" (which is slightly past halfway if your gauge and sender are working correctly).

The head temps stay in the 250-300 range so i guess no worries there, the oil temps are in the 200 +/-10 range however I may switch to synthetic soon to see what that does. Mobile one seems like a good choice as it's high quality and easy to get.

J-P

Is there actually proof out there that synthetic oil lowers cylinder head temperatures?
Ron

Ron,

Check out the current VW Trends.

Jim