Stripped nut on water pump - 1987 Westy

[hbmbguy]

While torquing down a new water pump the upper nut(easiest to access) stripped before I got it to 15 ft lbs. Now it won't tighten or come off the stud.

Any suggestions?

Thanks!
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1987 Westy

[Merian]

impact

or a nut cracker (fits over the nut & has a screw driven blade at 90o to cut the nut w/o damage to the male fastener

[kamzcab86]

Topic locked due to same post being made in your original water pump topic: http://www.thesamba.com/vw/forum/viewtopic.php?t=617325 .
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~Kamz
1986 Cabriolet: www.Cabby-Info.com
1990 Vanagon Westfalia: Old Blue's Blog
2016 Golf GTI S
"Real knowledge is to know the extent of one's ignorance." - 孔子