Contributed by: Ray Calvo
I don't know how many of you have been driving 911s for over 20 years, but one thing that has always amazed me is the size of the tool bag - especially with the inclusion of a spare fan belt and the associated tools for removal. Well, the good old days are gone! When I noticed that the alternator belt on my 993 was squealing, I dug in vain in the tool bag for any sign of a spare belt or the associated tools for removal/installation. Believe it or not, they don't exist anymore! Whether this is one of the "improvements" made with the 993 introduction or started with the C2/C4 back in '89 I don't know (I suspect the latter, since this is the first date of the separate fan and alternator belt setup).
Doing some measurements,
I found out the large hex nut on the end of the shaft is a 24 mm - so much
for using a standard wrench! The shaft is partially hollow, and is
machined to apparently take a large Torx fitting; I found that a long-handled
8mm Allen wrench works fine with a length of pipe stuck in the end (shop
maual sez to use wrench no. 999 571 052 02). To loosen the hex nut, I used
a 12" long adjustable wrench (affectionately called a "knuckle buster"
by us old timers, for all you snotty nosed kids out there). The belt adjustment
is still fairly standard - move shims from between the pulley halves to
in front of the outer pulley. This adjusts