Richard 92 C2

Hi all

Broke a fanbelt last night on the way home, Its the inner belt (Not the alternator, or A/C)...

In a search I saw that there is a special tool recommended for changing these belts, Question is, can I replace them without the special tool and has anyone had any flight time doing this??

Thanks for any assistance!

Jeff Curtis

Use the "L" shaped ribe tool in your tool kit, that's all the special tools you should need, that and the closed end...is it a 24MM wrench??

Horst showed me a neat trick to break the alternator shaft nut loose, use a piece of 2 x 4 and lodge it in at an angle, as to hold the "L" shaped ribe tool from turning, then bust the nut loose on the alternator shaft.

Going from memory, you will need a 10mm socket and remove the three nuts holding the pulley half on.

The belt you broke turns the fan, you should be able to figure out how to change it from there...if not, let us know.

Richard 92 C2

Cheers Jeff,

I'll check it out tonight!

Richard 92 C2

Update:

I managed to replace the belt, However, unless you have the right tool its just about impossible (my opinion). There is nothing special about the tool though, Its a "M10" Torque Socket and can be bought from just about any reputable tool supplier (Teng, SnapOn etc). Also ... A small warning... Make sure to put something (A towel or similar) under the area of the Top Pulleys so that if you drop anything it will be caught and not fall under the bottom pulleys, there appears to be a "Black Hole" under the bottom pulleys, whatever drops in there will be gone ..... Yes I now know from experience. Not even a magnet helped! Lucky it wasn't anything important though. A 3/8" drive, 10 socket. I hope to get it back one day when the engine is out ????

Good luck

P.S Leave the new "special tool" and 24 closed ring spanner in your cars toolkit, along with a spare belt for each function.

Nick Appleton

I must admit to be a little confused about this 'special tool'.

I thought that the 'half moon' type of wrench was the special tool that I needed - this was the only tool that was missing from my tool kit when I got the car?

Richard 92 C2

Nick

I'm not sure what the "official" tool looks like but the socket I used was perfect and did the job!! I presume the Porsche tool is a specific one made for the job but my OPC did not have one in stock, the Techie in the workshop suggested the socket instead!

Hope this helps

Jay H

Here's a shot of the special tool for the belt changes.

It's the 3rd tool from the left. It is part number 999-571-052-02 and is still available from the dealer. I paid $22.21.

<img src="http://www.jays911.com/Tools%20002.jpg" alt=" - " />

Hope this helps,
Jay
<a href="http://www.jays911.com" target="_blank">90 964</a>

GMS

The alternator socket size is not "torque" or "Torx". The correct socket is called XZN or triple square. using a Torx driver will usually strip out the alternator socket..which is thena real problem.