Torque spec for Tire Pressor Sensor Nut
Le Mans Master
Joined: Feb 2002
Posts: 6,937
Likes: 21
From: Waldorf MD
My shop manual says 62 in-lbs. My manual is the official on-line shop manual. I have had this discussion with others.
Series I, 1997-2000, calls for 106 in-lbs.
Series I use an o-ring, while series II have a rubber "gasket" (which GM calls a gromet).
Series I, 1997-2000, calls for 106 in-lbs.
Series I use an o-ring, while series II have a rubber "gasket" (which GM calls a gromet).
Last edited by Oldvetter; Sep 23, 2007 at 01:23 PM.
Safety Car
Joined: Aug 2000
Posts: 4,933
Likes: 30
From: San Rafael CA
Racer
Joined: Nov 2006
Posts: 491
Likes: 5
From: Tampa Bay Area, U.S.A. (Zombie Nation)
I've read where these sensors sometimes break off. 
In addition to inaccurate torque, I was wondering if this breakage could be caused by wheel imbalance (vibration). Relatedly, I was wondering if a dab of silicon adhesive (or whatever), under the sensor body, might add some insurance against this breakage? 
In addition to inaccurate torque, I was wondering if this breakage could be caused by wheel imbalance (vibration). Relatedly, I was wondering if a dab of silicon adhesive (or whatever), under the sensor body, might add some insurance against this breakage?
Team Owner
Joined: Mar 1999
Posts: 22,025
Likes: 192
From: At the beach in little Rhody
I have had this discussion with "oldvetter" in the past, as my manual is the same. I "think" there is a TSP on the sensors for air leaks. GM may have changed the torque value as a result. You may want to research this further.
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Thread Starter
Instructor
Joined: Jun 2003
Posts: 191
Likes: 0
From: PITTSBURGH PA
That would explain the two different settings. Thanks.
Safety Car
Joined: Aug 2000
Posts: 4,933
Likes: 30
From: San Rafael CA
http://www.schrader-bridgeport.com/p...ator/index.cfm
Looks like "oldvetter" may be old, but he's not wrong.
Safety Car
Joined: Aug 2000
Posts: 4,933
Likes: 30
From: San Rafael CA
As far as I can tell they are. There are other makers of TPMS systems such as TRW Automotive, Denso, Siemens VDO, and Johnson Controls. The Schrader site was the only one that gave useful information specifically about the Corvette, and even recognized that there are 3 different sensors for the Corvette (2 for the C5 and one for the C6, including the GM part numbers), so I kinda suspect they are the OEM supplier, if not, they certainly know a lot about the system .... 
