Help! Broken Belt...
08-18-2009, 11:14 PM
#31
The new pulley is shown in the photo. Notice that the surface of the pulley flairs out and becomes the mating surface that the nut tightens directly onto. With the original pulley, the same surface is flat and there is a separate spacer along with any extra shims between the pulley and the nut. Extra alternator shims are not stored outside the pulley with the revised setup.
This picture was taken in my car before I installed new belts. I discovered that the fan and alternator belts were reversed and the shims were all messed up to make it work. That is why more threads are showing than normal.... but you get the idea.
This picture was taken in my car before I installed new belts. I discovered that the fan and alternator belts were reversed and the shims were all messed up to make it work. That is why more threads are showing than normal.... but you get the idea.
08-18-2009, 11:17 PM
#32
Seared
Rennlist Member
Rennlist Member
The new pulley is shown in the photo. Notice that the surface of the pulley flairs out and becomes the mating surface that the nut tightens directly onto. With the original pulley, the same surface is flat and there is a separate spacer along with any extra shims between the pulley and the nut. Extra alternator shims are not stored outside the pulley with the revised setup.
Andreas
08-19-2009, 10:18 AM
#33
Rennlist Member
Above posters give you excellent information. It it sounds mildly confusing, don't sweat.
You need the "star" tool. It looks like a hex wrench except it has twelve sides. I know they sell them in a little set at pep boys--think it's a socket at pep boys whereas the oem is a little angled wrench sort of thing. It's in the tool aisle. I've read the pep boys tool is too long to fit in the narrow space between the pulley and the body work and needs to be cut down, but I don't know. Most of us borrow the tool from another 964 or 993 owner for our emergency, and then purchase from pelican or sunset. IIRC, the tool came in the 964 tool wrap, but not in the 993. Sunset had it in stock when I purchased. Don't know if local dealers stock it.
Yes, you should update the pulley halves (not the rs update which is much more complicated and hardly necessary), but it's not important to do asap. You can find the tsb online, but it says nothing other than remove old part, discard shims and use new part. It's not a recall item. Do it now or later--removing the pulley and belt takes 60 seconds. Extremely important that you use the oem belt as the continental brand that is readily available is slightly different width and will shred, guaranteed.
Look up the DIY for belts over on the pcar diy web site. It explains the little washer spacers holding the pulley halves apart. After you do this repair once, you'll agree it's a one on a scale of one to ten.
My opinion: If you need the car immediately, find a buddy with the tool and get the belt at the dealer. Likely that someone who knows they have the tool also has used it and can demonstrate. Otherwise, order the tool, the new pulley halves, and two belts (one for now, and the other as a spare) from sunset. Read the DIY a couple times, and don't sweat.
You need the "star" tool. It looks like a hex wrench except it has twelve sides. I know they sell them in a little set at pep boys--think it's a socket at pep boys whereas the oem is a little angled wrench sort of thing. It's in the tool aisle. I've read the pep boys tool is too long to fit in the narrow space between the pulley and the body work and needs to be cut down, but I don't know. Most of us borrow the tool from another 964 or 993 owner for our emergency, and then purchase from pelican or sunset. IIRC, the tool came in the 964 tool wrap, but not in the 993. Sunset had it in stock when I purchased. Don't know if local dealers stock it.
Yes, you should update the pulley halves (not the rs update which is much more complicated and hardly necessary), but it's not important to do asap. You can find the tsb online, but it says nothing other than remove old part, discard shims and use new part. It's not a recall item. Do it now or later--removing the pulley and belt takes 60 seconds. Extremely important that you use the oem belt as the continental brand that is readily available is slightly different width and will shred, guaranteed.
Look up the DIY for belts over on the pcar diy web site. It explains the little washer spacers holding the pulley halves apart. After you do this repair once, you'll agree it's a one on a scale of one to ten.
My opinion: If you need the car immediately, find a buddy with the tool and get the belt at the dealer. Likely that someone who knows they have the tool also has used it and can demonstrate. Otherwise, order the tool, the new pulley halves, and two belts (one for now, and the other as a spare) from sunset. Read the DIY a couple times, and don't sweat.
08-19-2009, 11:16 AM
#34
Three Wheelin'
You need the "star" tool. It looks like a hex wrench except it has twelve sides. I know they sell them in a little set at pep boys--think it's a socket at pep boys whereas the oem is a little angled wrench sort of thing. It's in the tool aisle. I've read the pep boys tool is too long to fit in the narrow space between the pulley and the body work and needs to be cut down, but I don't know. Most of us borrow the tool from another 964 or 993 owner for our emergency, and then purchase from pelican or sunset. IIRC, the tool came in the 964 tool wrap, but not in the 993. Sunset had it in stock when I purchased. Don't know if local dealers stock it.
As others have said, this is a pretty easy DIY--I spent more time fishing out a shim that fell than I did doing anything else on this project.
08-19-2009, 09:48 PM
#36
Race Car
I meant 9.5x776, that's two 7's and one 6, not one 7 and two 6's.
http://www.pelicanparts.com/cgi-bin/...5x%37%37%36%20
08-29-2009, 08:44 PM
#37
Burning Brakes
Join Date: Nov 2004
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Just replaced the fan belt and alternator belt. Followed P-car.com and all your advice. Thanks guys!!!
One problem, I can't seem to get the A/C belt back on properly. After I put the new A/C belt on, I can't seem to align the A/C compressor back to the original position in order to tighten all the bolts. Any tips and tricks?
I can live w/o A/C for now.
One problem, I can't seem to get the A/C belt back on properly. After I put the new A/C belt on, I can't seem to align the A/C compressor back to the original position in order to tighten all the bolts. Any tips and tricks?
I can live w/o A/C for now.
08-29-2009, 11:05 PM
#39
Burning Brakes
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I am replacing all the belts with OEM Porsche belts. Is your compressor sitting in the middle of the mounting hole (as you can slide it left and right to adjust)? When I initially unbolted it (was in middle), I slid it to left (towards center of car) to remove the A/C belt. Now I am trying to do the reverse to re-install the new belt.
