RTH - 764 Pressure Plate Bearing Contacts Disc First?
07-13-2014, 12:15 AM
#1
RTH - 764 Pressure Plate Bearing Contacts Disc First?
Need an answer before I can proceed installing my '764' pressure plate.
Mock fitting the pieces together, the throwout bearing will contact the clutch disc hub first without the friction surfaces touching at all.
This is in contrast to any other setup I've ever seen, including the stock pressure plate and disc setup I just pulled out of the car. This is true mock fitting for the new and original disc against the 764 pressure plate. I'm 100% confident I'm trying the disc in the right orientation and it's not flipped around.
Is this normal and it's a non issue as I install it onto the flywheel?
All part #'s
95011608008 - 911 Turbo release bearing
99611601501 - 911 GT3/Turbo S disc
883082999764 - SRE 764 pressure plate
stock dual mass flywheel
Mock fitting the pieces together, the throwout bearing will contact the clutch disc hub first without the friction surfaces touching at all.
This is in contrast to any other setup I've ever seen, including the stock pressure plate and disc setup I just pulled out of the car. This is true mock fitting for the new and original disc against the 764 pressure plate. I'm 100% confident I'm trying the disc in the right orientation and it's not flipped around.
Is this normal and it's a non issue as I install it onto the flywheel?
All part #'s
95011608008 - 911 Turbo release bearing
99611601501 - 911 GT3/Turbo S disc
883082999764 - SRE 764 pressure plate
stock dual mass flywheel
07-13-2014, 02:15 AM
#2
So I went ahead and mounted it and all looks to be well.
Comparing the OE PP and the 764 PP side by side, a few things about the 764 PP are notable. The diaphragm spring is shimmed to sit deeper under the main PP ring. So without tension (i.e. mounted) the cone of the diaphragm protrudes deeper into the disc area and the bearing will contact the disc first as I noted in my original post.
As it's mounted to the flywheel, the diaphragm will push out. When torquing it down, it's obvious this 764 PP puts quite a bit more pressure than the OE PP, which is the whole idea. Once it's down, all bearing no longer contacts the disc as it's suppose to be.
Comparing the OE PP and the 764 PP side by side, a few things about the 764 PP are notable. The diaphragm spring is shimmed to sit deeper under the main PP ring. So without tension (i.e. mounted) the cone of the diaphragm protrudes deeper into the disc area and the bearing will contact the disc first as I noted in my original post.
As it's mounted to the flywheel, the diaphragm will push out. When torquing it down, it's obvious this 764 PP puts quite a bit more pressure than the OE PP, which is the whole idea. Once it's down, all bearing no longer contacts the disc as it's suppose to be.