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CBRacerX's Avatar
 
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Removing 964 Crank Pulley...

I've got the center bolt out, but I have not removed the ring of smaller allen head cap screws around the center bolt hole (they look like they just keep the A/C pulley on the main crank pulley). Gentle prying has not budged the pulley at all.

Suggestions?

Thanks!

Chris
Old 02-27-2006, 08:31 AM
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There is a tool for this. It is easiest with the tool.
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Old 02-27-2006, 09:30 AM
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Anyone have a pic of the tool and/or a source for it? Like to make progress on this today.

Chris
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Old 02-27-2006, 10:11 AM
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get a 16X55X1.50 bolt, and grind 35mm worth of the threads off the end. the tool has 20mm of threads below the bolt head, and a 12mm pin, 35mm long, beyond the threads. run it in and the pulley pops off.
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Old 02-27-2006, 10:28 AM
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Thanks John, I appreciate the detail. I have a large assortment of metric hardware, but almost nothing in 16mm. I might just have to buy the tool to make life easier!
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'80 SC Weissach, '01 986S, '99 C2 Cab, '97 TJ, '01 Disco SE7, '06 KTM SM950
Old 02-27-2006, 10:33 AM
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here's a pic. my camera decided to work again.

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Old 02-27-2006, 10:33 AM
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Thanks again, that is perfect detail!
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'80 SC Weissach, '01 986S, '99 C2 Cab, '97 TJ, '01 Disco SE7, '06 KTM SM950
Old 02-27-2006, 10:37 AM
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Don't remove the little bolts holding the balancer to the pulley - they are balanced together.

I was unable to find a suitable bolt to make the tool from so I bought the tool. Bolts that were long in that oddball diameter weren't fully threaded. I loaned out my factory tool to a buddy and it broke on him so be careful. The pulley can be on their pretty good I guess. Factory tool is ~$25 I think.
-Chris
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Old 02-27-2006, 02:59 PM
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Thansk Chris, so far I know that Pelican doesn't list the tool and SIR Tools doesn't seem to make it either. Snap-On perhaps? Anyone have the factory tool number?

I really need to get the 964 Factory manuals, I have _every_ other model up to '89, and the 993 series but not the '64...
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Last edited by CBRacerX; 02-27-2006 at 05:42 PM..
Old 02-27-2006, 05:36 PM
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Part # 9285/1. I don't believe they are in stock in the US. I've got two on order with a mail order Porsche dealer, and they are saying it's going to be a few weeks to get them from Germany (I didn't want to pay to expedite them)

-Eric

(Chris, I really did order a replacement for you.........)
Old 02-27-2006, 05:55 PM
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A few weeks back order! Yikes! I'll have to search around for one of these.

Thanks for the part number, that will help a lot

Chris
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Old 02-27-2006, 07:20 PM
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I can go out in the morning, get you the bolt and send it to you if you want. We have great metric supply up here!

Let me know!

Cheers
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Old 02-27-2006, 08:51 PM
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Jeff,

Your offer is very generous, and I'd like to take you up on it! I'll send you a PM.

Chris
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Old 02-28-2006, 06:05 AM
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M16x1.5 is a common thread size/pitch for oil drain plugs. Perhaps a M16 drain plug combined with a section of steel rod?

Be aware that the nose of the crankshaft where the tool pushes against has a plug in it so you'll want to make sure that any tool you come up with has a broad-flat end (rather than pointed) that will not push against the plug.

Most auto part stores sell a selection of drain plugs.

-doug
Old 02-28-2006, 08:39 AM
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Chris, sent two off this morning, you should have them tomorrow afternoon!

PM'ed you a tracking number

Cheers
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Old 02-28-2006, 12:55 PM
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Jeff,

I'm in shock and awe

Thanks very much! Beer money just went your way, let me know if you are still thirsty. I know you have good beer in BC

Cheers,

Chris
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Old 02-28-2006, 01:01 PM
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No worries! Glad to help! Money not required! Post of pic when you have it off. I am making one also as I have a spare 964 pulley here to play with!

Cheers
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Old 02-28-2006, 02:25 PM
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HI do not forget to hold the pulley with P-9290 as if you do not you could shear the locating pin in the pulley/crank on removal?

regards mike
Old 03-01-2006, 02:38 PM
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Jeff,

Got the bolts yesterday, appreciate the effort. Regrettably, the pitch is too large on the threads (mabe these are 1.75mm?). In any event, they will not fit into the 964 pulley. So I am back in the hunt for the tool or the hardware!

Although the chances are almost zero, I am going to try at home depot today...

Chris
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Old 03-04-2006, 12:44 PM
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The ones I sent were 1.5mm pitch......

Cheers
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Old 03-04-2006, 12:52 PM
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