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Join Date: Jul 2001
Location: Tuscaloosa Al
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half-shaft questions
Hello all, today I had all of the bolts back out on one of my axles. My fault as I forgot to go retorque them. I was going slow so no damage and only one of the allen heads broke. Question is, what type of washers do these things use, I have half spring washers and half lock washers. Are these stretch bolts that need to be replaced ?
Thanks as always
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John Brasfield 91 C2 78 SC For sale 76 3.6 68 Datsun 2000 Mr. Magoo, 02 330ci |
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02-13-2003, 05:41 PM
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Location: Los Alamos, NM, USA
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Year and model? The half-shaft CV joints which use lock washers utilize the Schnoor type which is a "toothed Belleville" (dished shape) lock washer. The lock washers should be replaced everytime the screws are loosened or removed. The screws may be reused; they are not "stretch" bolts. Do not lubricate the screw threads. Do you know the proper torque for your CV joint screws? Are there four or six screws per CV joint? Cheers, Jim
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02-13-2003, 06:22 PM
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it is a six bolt off of a 76. I am aware of the schor washers, I guess mine all got lost. I will try to track some down somewhere. My buddy said it is a good idea to clean all threads with berrymans carb cleaner including the axle shaft threads. Dry them off good and use blue locktite if you wish.
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John Brasfield 91 C2 78 SC For sale 76 3.6 68 Datsun 2000 Mr. Magoo, 02 330ci |
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02-13-2003, 06:49 PM
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Then you have 8mm screws; 36 ft-lbs. Jim
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02-13-2003, 06:57 PM
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Thanks Jim
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John Brasfield 91 C2 78 SC For sale 76 3.6 68 Datsun 2000 Mr. Magoo, 02 330ci |
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02-13-2003, 07:12 PM
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Back in the saddle again
Join Date: Oct 2001
Location: Central TX west of Houston
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Actually I'm pretty sure some year(s) had stretch bolts?!? Not sure which though.
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Steve '08 Boxster RS60 Spyder #0099/1960 - never named a car before, but this is Charlotte. '88 targa  SOLD 2004 - gone but not forgotten
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02-13-2003, 09:33 PM
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In 1984 and later the CV joint screws ( the screw part no. changed) no longer came with locking washers. This may mean they are stretch bolts but I suspect instead it means they came with a some type of prevailing torque locking feature such a distorted thread profile. But 1983 and earlier the CV joint screws can be reused if in good condition. Cheers, Jim
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02-14-2003, 04:58 AM
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FWIW I also had the half shaft come loose from the trans on my 87... on the highway! I was lucky as there was no damage, but when I put the new half shaft in I used new bolts with the schnoor washers. Can't be too careful!
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Sean O. Atlanta, Ga. 96 Van Diemen Formula Continental 01 2500HD |
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02-14-2003, 06:43 AM
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Did my 30k inspection several years ago with a ex-Porsche mechanic. We did the half shafts and re-assembled them using the old bolts and not a problem after 25k of driving. Either the 85 model bolts are not the "use once" type of bolt or I am very lucky!
Joe
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2021 Subaru Legacy, 2002 Dodge Ram 2500 Cummins (the workhorse), 1992 Jaguar XJ S-3 V-12 VDP (one of only 100 examples made), 1969 Jaguar XJ (been in the family since new), 1985 911 Targa backdated to 1973 RS specs with a 3.6 shoehorned in the back, 1959 Austin Healey Sprite (former SCCA H-Prod), 1995 BMW R1100RSL, 1971 & '72 BMW R75/5 "Toaster," Ural Tourist w/sidecar, 1949 Aeronca Sedan / QB |
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02-14-2003, 06:48 AM
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Where did you get the washers? I tried to get lock washers from PP and received the split type.
GB |
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02-14-2003, 10:26 AM
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Search : Schnoor with Early S Man and you'll find it.
Good Luck
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Cary 77 Carrera RS w/3.2 #59 73 914S 2.0 AG 73 914 1.7 Driver ( daily driver, under complete rustoration ) 74 914 2.0, 71 914 Tub, 74 914 2.0 Tub + 73 914 donor |
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02-14-2003, 06:19 PM
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1987 Porsche Carrera Cabriolet 3.2 
