Any downsides to the single fan pulley?
10-17-2007, 11:36 PM
#1
Nordschleife Master
Thread Starter
Any downsides to the single fan pulley?
I've read the pulley is a good replacement for the duel belts. Excellence did a 993 buyers guide & said it was a good idea to replace with the single pulley.
So how hard is it to replace? Really a 1hr job? Is there any downsides?
So how hard is it to replace? Really a 1hr job? Is there any downsides?
10-18-2007, 12:10 AM
#2
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Works fine, only downside is at idle the alternator does not generate that much so usually the batter will be experiencing a net draw. Once the RPM is about 1000 the alternator will catch up. That's about it so if you do a lot of city driving with the lights/fan/AC/whatever on you will need a strong battery ; if your driving is spirited and non-stop then its no affect at all.
It does make changing a belt in the field a lot easier....
Cheers,
Mike
It does make changing a belt in the field a lot easier....
Cheers,
Mike
10-18-2007, 12:17 AM
#4
Burning Brakes
It's a one hour job if you've pulled the alternator before, and if the the fan slips off the alternator without a puller (or if you have a puller).
It's a multi-hour job if you:
1) strip the splines on the alternator shaft
2) continue to drop nuts/washers under the crankshaft pulley
3) need to find a friend with a fan puller because you can't bang the fan off with out killing the alternator bearings.
4) break one of the studs on the rs pulley by using gorilla like force
5) have to take it apart again to fix the broken stud
6) break the fan pulley sensor, then decide it's not worth the $ to replace so you pull out the connector, solder the wires together, then plug in to fool the idiot light into a closed circuit condition.
Otherwise, replacing the belt will be better, presuming I don't magilla the nut again!
Don't let my idiocy discourage you. It's worth doing if you don't have a huge amplifier or my gene pool.
It's a multi-hour job if you:
1) strip the splines on the alternator shaft
2) continue to drop nuts/washers under the crankshaft pulley
3) need to find a friend with a fan puller because you can't bang the fan off with out killing the alternator bearings.
4) break one of the studs on the rs pulley by using gorilla like force
5) have to take it apart again to fix the broken stud
6) break the fan pulley sensor, then decide it's not worth the $ to replace so you pull out the connector, solder the wires together, then plug in to fool the idiot light into a closed circuit condition.
Otherwise, replacing the belt will be better, presuming I don't magilla the nut again!
Don't let my idiocy discourage you. It's worth doing if you don't have a huge amplifier or my gene pool.
10-18-2007, 01:09 PM
#5
Nordschleife Master
Thread Starter
Here is a write-up I did outlining most of the details of this retrofit.
It's a multi-hour job if you:
1) strip the splines on the alternator shaft
2) continue to drop nuts/washers under the crankshaft pulley
3) need to find a friend with a fan puller because you can't bang the fan off with out killing the alternator bearings.
4) break one of the studs on the rs pulley by using gorilla like force
5) have to take it apart again to fix the broken stud
6) break the fan pulley sensor, then decide it's not worth the $ to replace so you pull out the connector, solder the wires together, then plug in to fool the idiot light into a closed circuit condition.
.
1) strip the splines on the alternator shaft
2) continue to drop nuts/washers under the crankshaft pulley
3) need to find a friend with a fan puller because you can't bang the fan off with out killing the alternator bearings.
4) break one of the studs on the rs pulley by using gorilla like force
5) have to take it apart again to fix the broken stud
6) break the fan pulley sensor, then decide it's not worth the $ to replace so you pull out the connector, solder the wires together, then plug in to fool the idiot light into a closed circuit condition.
.