MKI / MKII S type 240 340 & Daimler 1955 - 1967

MK2 Mystery Firewall Captured Nut

 
  #1  
Old 03-20-2014, 07:22 PM
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Default MK2 Mystery Firewall Captured Nut

Hi folks,

I have a question for you. What is the purpose of the captured nut on the firewall in this photo? I have the same nut on my car, but I do not know its purpose. Is it perhaps used for the battery strap?

Thanks.


Lin
 
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  #2  
Old 03-20-2014, 08:03 PM
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Default MK2 Mystery Firewall Captured Nut

Got it now. Thanks. It is for the battery strap.
Lin
 
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Old 03-21-2014, 07:01 AM
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my S type has those too, there is another one to the left of the one you encircled.

my strap has two long 7/16" / 11mm bolts made of brass.
 
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Old 02-03-2019, 12:07 PM
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Originally Posted by MK2 View Post
Hi folks,

I have a question for you. What is the purpose of the captured nut on the firewall in this photo? I have the same nut on my car, but I do not know its purpose. Is it perhaps used for the battery strap?

Thanks.


Lin
Lin, By "captured nut" do you mean it is securely attached to the other side of the firewall so the nut is fixed & cannot be lost?
I need to put a new battery in my 67 Mk 2 340, but have been afraid of losing the battery strap nuts to never-never land. (I could not understand why Jaguar would do that!)
Thanks
 
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Old 02-03-2019, 01:15 PM
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captured means either welded or caged.
 
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Old 02-03-2019, 05:48 PM
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Originally Posted by Jose View Post
my S type has those too, there is another one to the left of the one you encircled.

my strap has two long 7/16" / 11mm bolts made of brass.
Correctly with Thackery washers under the heads I believe.
 
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Old 02-03-2019, 05:56 PM
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yes, two thackery washers under the head and over the bracket foot. Same size as used in XJ and E types for the Hood Handle. .
 
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Old 02-05-2019, 03:16 PM
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Originally Posted by Jose View Post
yes, two thackery washers under the head and over the bracket foot. Same size as used in XJ and E types for the Hood Handle. .
Where does the second washer go Jose? There is one under the bolt head, which allows some movement against the bracket, and the bolts should not be done up so that the Thackery washer is flat, but where do you think the second one goes, not seen it and can't work out where you mean.
 
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Old 02-05-2019, 03:56 PM
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TilleyJon, I guess I mis-explained:

there are two thackery washers, one per brass bolt, One under each bolt head and it contacts the holdown bracket's "foot". (Not two thackery washers per bolt). .
 
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Old 02-06-2019, 01:00 AM
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Originally Posted by Jose View Post
TilleyJon, I guess I mis-explained:

there are two thackery washers, one per brass bolt, One under each bolt head and it contacts the holdown bracket's "foot". (Not two thackery washers per bolt). .
Thanks Jose, that does make sense
 
 
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