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Thermotime switch thread size
Posted: Mon Jan 28, 2013 3:34 am
by demo2
Hi guys, does anyone know what thread the thermotime switch is and coolant sender ? I need to make up an adaptor to put the coolant temp sender in where the thermotime went originally. Cheers
Posted: Mon Jan 28, 2013 9:29 am
by volospian
This probably doesn't want to be in the "for sale" section
Re: Thermotime switch thread size
Posted: Mon Jan 28, 2013 11:20 am
by DaveEFI
demo2 wrote:Hi guys, does anyone know what thread the thermotime switch is and coolant sender ? I need to make up an adaptor to put the coolant temp sender in where the thermotime went originally. Cheers
M14x1.5
Posted: Tue Jan 29, 2013 9:25 am
by demo2
How the hell did it get in for sale section?
I thought rover stuff was all imperial? so what about the temp sender?
Posted: Tue Jan 29, 2013 10:52 am
by DaveEFI
It's only Imperial where part of the original engine. The injection was designed long after that and is basically Bosch which uses Bosch sensors which are metric. It would have been very expensive (and pointless) to have had specials made with Imperial threads.
Posted: Wed Jan 30, 2013 1:07 pm
by demo2
I didnt realise above engine is metric but makes sense. So i need to source m14x1.5 down to m12x 1.5 adaptor then.
Posted: Wed Jan 30, 2013 1:13 pm
by DaveEFI
Might be just as easy to replace the coolant sensor with one of the same electrical spec, but correct thread.
Posted: Sat Feb 02, 2013 9:22 pm
by bodger
demo2 wrote:How the hell did it get in for sale section?
I thought rover stuff was all imperial? so what about the temp sender?
I was under the impression that threads are AF as its a usa engine ? Interested to know ?
Posted: Sat Feb 02, 2013 11:09 pm
by DaveEFI
The threads on the main engine are Unified. They are closer to American than Whitworth or BSF, but not strictly speaking the same. They came about during WW2 so things could be made the same on both sides of the pond. Most UK car makers adopted them after WW2, but not all. Especially if the design was basically pre-war.