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-   -   Troublesom NSS (http://www.jeepforum.com/forum/f11/troublesom-nss-1724282/)

meofouse 10-26-2013 08:30 AM

Troublesom NSS
 
It's really been a long time since I've posted on this forum but I thought I'd share some info with all the XJ fiends. I just turned 318000 on my '98 and haven't had any problems other that normal things, alternator replacement, water pump replacement etc, things that you would expect. A little over a 100000 miles ago I replaced the NSS with a cheapo off Ebay, $40. The thing lasted a long time and started acting up first with a CEL and the usual not engaging the overdrive. I had saved the original factory NSS and opened it up for some cleaning and discovered that cleaning alone will not fix the problem. If you look very closely with a mag glass you can see that the copper contacts, the long strips actually wear down and have indents in them from use. I flatboarded the entire unit, laid down some 600 grit w/d on a flat board and proceeded to sand down the contact side. When you do this the indents show up really well. I kept sanding and sanding until the copper strips showed no more indentations, cleaned the unit up, re-greased and put the original NSS back in the XJ. thing runs like new. Just thought I'd share. Cleaning is not enough, you have to even out the contact surfaces.
Meo


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