Sheared otter switch bolt

Talk about the E-Type Series 3
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EDW3694
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#1 Sheared otter switch bolt

Post by EDW3694 » Wed Feb 08, 2017 9:53 pm

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
'72 S3 2+2 Regency Red

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JagWaugh
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#2 Re: Sheared otter switch bolt

Post by JagWaugh » Wed Feb 08, 2017 10:09 pm

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.

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abowie
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#3 Re: Sheared otter switch bolt

Post by abowie » Thu Feb 09, 2017 2:49 am

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.
Andrew.
881824, 1E21538. 889457. 1961 3.4l Mk2. 1975 XJS.
http://www.projectetype.com/index.php/the-blog.html
Adelaide, Australia

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V12 Epyte
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#4 Re: Sheared otter switch bolt

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

1971 Series 3 FHC 2+2 RHD Manual
1971 Series 3 Roadster 2+2 RHD Manual
1986 Rover SD1 Vitesse Twin Plenum

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#5 Re: Sheared otter switch bolt

Post by EDW3694 » Fri Feb 10, 2017 8:27 pm

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
'72 S3 2+2 Regency Red

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EDW3694
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#6 Re: Sheared otter switch bolt

Post by EDW3694 » Fri Feb 10, 2017 10:11 pm

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
'72 S3 2+2 Regency Red

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E-typeguy
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#7 Re: Sheared otter switch bolt

Post by E-typeguy » Sat Feb 11, 2017 3:29 am

Nice car Simon. Hope to have mine looking like yours.
Wes
1972 Jag E type coupe - Series 3
1968 Jag E type FHC - Series 1.5

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Adamski
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#8 Re: Sheared otter switch bolt

Post by Adamski » Sun Feb 19, 2017 8:18 pm

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.
Adam
S3 V12 E Type FHC Manual 1972-owned since 1978
1957 XK150 since 1976

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JagWaugh
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#9 Re: Sheared otter switch bolt

Post by JagWaugh » Sun Feb 19, 2017 8:41 pm

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

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42south
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#10 Re: Sheared otter switch bolt

Post by 42south » Mon Feb 20, 2017 12:04 am

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
Mark Brown
1971 S3 Etype, now sold, sadly.

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