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#1 Sheared otter switch bolt

Posted: Wed Feb 08, 2017 9:53 pm
by EDW3694
Hi
While replacing the otter switch I've sheared one of the bolts off in the threads of the housing. I've ordered a new housing but can't source any new bolts. Barrett's and Manners' both say they are unavailable.
Does anyone know what size/thread they are or know where I could get hold of 3 new ones?
Also I've tried to attach a photo but the file is too large, how do I get over this problem
Thanks
Simon

#2 Re: Sheared otter switch bolt

Posted: Wed Feb 08, 2017 10:09 pm
by JagWaugh
I'm not sure about the SIII, but on the earlier cars they are #10 NC (i.e. 10-24) Should be fairly easy to source those.

#3 Re: Sheared otter switch bolt

Posted: Thu Feb 09, 2017 2:49 am
by abowie
Common problem; they weld themselves in there. #10 or 3/16" UNC (NOT UNF). You might satruggle to find hex headed bolts but if you can't you could just use Phillips.

#4 Re: Sheared otter switch bolt

Posted: Thu Feb 09, 2017 7:00 am
by V12 Epyte

#5 Re: Sheared otter switch bolt

Posted: Fri Feb 10, 2017 8:27 pm
by EDW3694
Hi
Thanks for the info. Now have fitted a new housing, otter switch and bolts.
Run up to temperature and the fans came on and no leaks :bigrin:
Simon

#6 Re: Sheared otter switch bolt

Posted: Fri Feb 10, 2017 10:11 pm
by EDW3694
http://s38.photobucket.com/user/simon_e ... sort=3&o=4

This is a pic of my car (hopefully, if I've sorted photobucket)
Simon

#7 Re: Sheared otter switch bolt

Posted: Sat Feb 11, 2017 3:29 am
by E-typeguy
Nice car Simon. Hope to have mine looking like yours.
Wes

#8 Re: Sheared otter switch bolt

Posted: Sun Feb 19, 2017 8:18 pm
by Adamski
Looking good. I too sheared one of those bolts and as mentioned drilled it and got in a stainless self tapper.
It's also nice to have a switch with light to activate the fan relay and thus switch them on manually in traffic.

#9 Re: Sheared otter switch bolt

Posted: Sun Feb 19, 2017 8:41 pm
by JagWaugh
Just for the sake of mentioning it, if the sheared fastener is ferrous, and the part isn't, you can dissolve the fastener.

https://forums.jag-lovers.com/t/xk-engi ... num/245409

#10 Re: Sheared otter switch bolt

Posted: Mon Feb 20, 2017 12:04 am
by 42south
Hi Guys
If you are looking to upgrade to more modern/reliable componentry, check this link to Coolcat out. I fitted one to my V12 several years ago; replacement senders are a modern readily available part from Porsche.

https://tinyurl.com/zpgjxoh