951 torque tube question
02-25-2003, 11:40 PM
#1
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951 torque tube question
Does anyone here know if the 951 driveshaft is the same diameter as the 944na and the 924? I just miked the 951 shaft at 25mm, the bearings mentioned in the other tt rebuild threads are calling for a 30mm id, obviously too big by far.
Engaging once again in alternative engineering-
Dave
Engaging once again in alternative engineering-
Dave
02-26-2003, 10:53 PM
#4
From the description on how to replace the TT bearings. A&M has an APB out on four 6006ZZC4 bearings for me, no luck so far.
After the bearings are removed press the plastic sleeve out of the inside of the bearing (a socket and a hammer will do this) do not throw these away as they are reused.
After the bearings are removed press the plastic sleeve out of the inside of the bearing (a socket and a hammer will do this) do not throw these away as they are reused.
02-27-2003, 09:28 AM
#5
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I was thinking of making a new sleeve from Delrin for my purposes, but I was still wondering about the shaft OD. The shaft on a 951 is 25mm, it should be the same for the 944na as well. HRK, thanks for the info. I am using a 6206 since it is readily available in a C4 clearance but still has a 30mm ID. I will be modifying the tube to accept these.
Brian- A&W informed me that the 6006 is almost impossible to find, suggest that you look further afield, like Japan or Germany. I have heard that it is still on the shelf in those countries.
Brian- A&W informed me that the 6006 is almost impossible to find, suggest that you look further afield, like Japan or Germany. I have heard that it is still on the shelf in those countries.
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02-28-2003, 09:11 AM
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Isn't the tube and shaft on the 5 bolt 931 the same as an early 944na? I think so, but don't have one to compare to. That said, how about the 4 four bolt 931s?
Ian-
The project is about finished with the engineering part. We've sourced bearings and other materials. All I need to do now is develop a way to remove the bell housing on the rear of the tube. Will address that somewhat this weekend. Projected weight savings is on the order of 50%+.
Ian-
The project is about finished with the engineering part. We've sourced bearings and other materials. All I need to do now is develop a way to remove the bell housing on the rear of the tube. Will address that somewhat this weekend. Projected weight savings is on the order of 50%+.
03-01-2003, 08:58 AM
#10
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</font><blockquote><font size="1" face="Verdana,Tahoma,Helvetica">quote:</font><hr /><font size="2" face="Verdana,Tahoma,Helvetica"> The project is about finished with the engineering part. We've sourced bearings and other materials. All I need to do now is develop a way to remove the bell housing on the rear of the tube. Will address that somewhat this weekend. Projected weight savings is on the order of 50%+. </font><hr /></blockquote><font size="2" face="Verdana,Tahoma,Helvetica">What is the project?
03-02-2003, 10:02 PM
#14
Anyone had any dealings with this TT rebuild kit? Dave, they also show the inserts that go inside of the bearings...maybe you could buy them separately.
<a href="http://www.944online.com/images/P1010016.jpg" target="_blank">http://www.944online.com/images/P1010016.jpg</a>
Look at the bottom right for the price.
<a href="http://www.944online.com/rebuiltparts.asp" target="_blank">http://www.944online.com/rebuiltparts.asp</a>
<a href="http://www.944online.com/images/P1010016.jpg" target="_blank">http://www.944online.com/images/P1010016.jpg</a>
Look at the bottom right for the price.
<a href="http://www.944online.com/rebuiltparts.asp" target="_blank">http://www.944online.com/rebuiltparts.asp</a>
03-06-2003, 11:27 PM
#15
Hmmm....I rebuilt mine about 4 years ago for $48 in bearings (plus the puller tool I made out of hardware store threaded rod, washers, and nuts). I re-used the sleeves - they have 4 stake points that can be carefully straightened so that the sleeves will press out. Staked them back into the new 6006C4s very easily.
The procedure:
I made the puller tool out of a 6 foot long, 3/4" dia. threaded rod, some large, thick washers, and several nuts. I locked two nuts together at one end of the rod and slid a washer on, then slid the rod through the bearings. A metal bar w/a hole drilled in it (which bridges the open TT housing hole) goes on the other end, then a washer and nut lubed with grease to reduce friction.
Tightening this nut with an open-end wrench will pull all 4 bearings/carriers out. I had already removed the torque tube's shaft by pounding it out with a 1/2" 6 foot long piece of black pipe (hardware store) - this fit perfectly on the pilot bearing nub.
The procedure:
I made the puller tool out of a 6 foot long, 3/4" dia. threaded rod, some large, thick washers, and several nuts. I locked two nuts together at one end of the rod and slid a washer on, then slid the rod through the bearings. A metal bar w/a hole drilled in it (which bridges the open TT housing hole) goes on the other end, then a washer and nut lubed with grease to reduce friction.
Tightening this nut with an open-end wrench will pull all 4 bearings/carriers out. I had already removed the torque tube's shaft by pounding it out with a 1/2" 6 foot long piece of black pipe (hardware store) - this fit perfectly on the pilot bearing nub.