

| Subject: | Re: Torque wrenches |
| Date: | Tue, 24 Mar 2015 09:45:09 -0700 |
Double checked with Bentley: Rear CV bolts are 33 lb-ft, but front CV bolts are 26 lb-ft. Strange that they would be different. -Dick- On Mon, Mar 23, 2015 at 2:46 PM, Dennis Haynes <d23haynes57@hotmail.com> wrote: > When it comes to using torque wrenches there are a number of factors that > need to be considered for successful use. > There is some skill involved in using one including the clicker type. The > fastener and mating parts need to be prepped for the application. Torque > wrenches are precision tools and especially the clicker types need to be > properly used and stored. Regular calibration is required for critical work > such as head assemblies and connecting rods. The goal is to achieve the > proper clamping load for the assembly. > > Torque should be applied smooth and steady, apply the torque and hold as > long as the fastener continues to turn. > Never use a torque wrench to "break" or loosen a fastener. For the big > stuff > that is why there are breaker bars. > When finished always lower the setting on the wrench so that the spring is > relaxed. > When prepping a fastener consider the lubrication and why! Some lubricants > can require torque to be reduced by as much as 40%. Do not use anti-seize > of > wheel lugs. > Vibration is not the cause of fasteners coming loose. Yes it can make them > fall off afterwards. Loose fasteners are the result of a connection that > could not sustain the clamp load. Some solid lubricants can make for a > loose > connection as it fills gaps that can work out leaving space making that > connection loose. Anti-Seize on the taper of a lug nut! > > CV joints man I have seen my share of those come loose. This is acritical > application. Both the shear forces on the bolts and friction between the > joint and flange help to hold this together. Avoid that moly grease between > the joint and the flange. Use new bolts and check that they are of quality. > I have been getting some that junk in the kits. They just keep stretching. > All hardware should be marked with the grade, (property class) and > manufacturer. If buying bolts for this job look for P.C. 12.9. > > When selecting fasteners, nuts, bolts, and washers need to be matched. No > sense having strong bolts if the washers dish out letting the connection > come loose. > > Hope some of this helps. > > Dennis >
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