Thermovacuum switch for a 1973 V12 XKE

[Paulus]

Hi,
My brother in the UK recently purchased a 73 V12 XKE from Ohio. He has asked me if I could source the thermovacuum switch but as a Triumph owner this is alien territory for me. Is there a US source or an interchange number from another make of car. Any help in educating me in finding this would be greatly appreciated.

 

[Gliderman8]

I confess that I don't know anything about the V12 XKE motor, but is it possible it is the same vacuum switch that was used in the TR6 motor?
I think I have one if it turns out to be the same part. Below is the Moss cat number and description

850-230

N/A

VACUUM VALVE

TR6 1972-’74

 

[Geo Hahn]

The Moss website suggests the XJS V12 and the TR6 use the same part, no mention of the E-Type:

https://www.mossmotors.com/Shop/SearchResults.aspx?SearchText=850-230&WebCatalogID=0

But it also shows they are N/A.

In a look at E-Type V-12 emissions parts the closest I get to that description is something called a 'thermostatic vacuum switch':

https://xks.com/i-7081380-co-37430-discontinued-vacuum-switch.html

Also N/A but possibly a part number to aid in the search.

 

[Paulus]

The E-Type thermovacuum switch has 4 ports, the Triumph has 2 ports. As it is part of emissions control it can probably be bypassed. First is knowing what it controls and the purpose. As this is an obsolete part I have to think that some current owners have already eliminated this component. If anyone out there has done this please let me know what is involved.

 

[Geo Hahn]

Apparently (I do not have a Series 3) the owners manual covers the function of that switch. Meanwhile, or in case you do not have that manual -- this thread may contain some clues:

https://forums.jag-lovers.org/av.php?1316007l53