

| Subject: | Re: ??? LUG NUTS & FRETTING CORROSION??? |
| From: | Todd Last |
| Date: | Wed, 6 Sep 2000 09:33:16 -0700 |
One thing you might want to check is that your brakes are not overheating. I recall that if your brakes overheat they 'cook' the lugnuts and make them very hard to remove. I forget the actual process at work that does it. Todd '88 Westy Rico Sapolich wrote: > What can be done to ease the removal of Vanagon lug nuts? I have always had > a bitch of a time taking off the lug nuts. I think this is caused by > fretting corrosion whose effect is compounded by their metallurgical > composition and heat treatment. > > I have installed the lug nuts dry and tightened with a torque wrench; I have > cleaned the threads scrupulously and used antiseize (Fel-Pro & Neverseize) at > assembly; I have sprayed them with PB Blaster when removing them. No matter > what, they are a son-of-a-bitch to remove. How tough is it? Well, I use the > largest, high quality metric 4-way I could find. I am far from a wimp-ass > and still I have to use a cheater and say a prayer. Once, I had to take a > 2WD to a garage to remove the front lug bolts. The mechanic hammered on them > for about 20 minutes with an Ingersoll-Rand (no junk tool) impact wrench. On > a couple of them we even had to heat them to cherry before they would give up > their hold. > > >From what I know of fretting corrosion, I am confident that this is the cause > of the problem. The lug nuts finally release their tenacious grasp with a > start, accompanied by a sharp retort and a puff of reddish brown dust. > > My references all talk of measures to take to reduce fretting in order to > maintain fatigue life. All I want is to be able to remove my wheels in a > predictable manner. Any suggestions? No, I am not going to carry my cutting > torch in the van and I already have a AAA membership. > > Rich
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