k2timbo Posted January 29, 2018 Share Posted January 29, 2018 Hi folks, I am wanting to fit a thermostat to my K2, I have the housing but only the body of the thermostat, the rest has corroded away. It is a Smiths 30065/6 68c-154f. I think this is off a later engine I bought years ago which may have been fitted to a K9. The manual I have says for the wartime K2 the thermostat is a Smiths x30065/14. I know Smiths parts are rare now so two questions, is the bit I have left, off a K9 and what could I use "off the shelf" to fit now? Any help is greatly appreciated. Cheers, Tim Quote Link to comment Share on other sites More sharing options...
john1950 Posted January 29, 2018 Share Posted January 29, 2018 Your thermostat is probably imperial measurement, new ones will be metric dimentions. That said you will need operating temperature firstly If you are lucky you will find an original. 1 Quote Link to comment Share on other sites More sharing options...
k2timbo Posted January 30, 2018 Author Share Posted January 30, 2018 Quote Hi John, yes the body of the old one is a neat 2 5/16", about 58mm. As for the operating temp, the (bit of) one I have left is 68c which is low. I am hoping that some one can identify it as a K9, or not, to give me a starting point. Cheers, Tim Quote Link to comment Share on other sites More sharing options...
MatchFuzee Posted February 1, 2018 Share Posted February 1, 2018 The Rolls Royce B series engines use a Smiths x30065 thermostat but I don't know what the suffix is, so I can't say if it is the same as x30065/14 in your manual. If the thermostats are the same, the Austin Champ Owners' Club replacement is:- Quinton Hazel QTH222 Dia (mm) 58.0 57.0 Temp (C) 73 75 QTH222 is a modern style unit. The critical difference is the depth of the main flange that acts as the seal in the thermostat housing. The Champ unit is 4mm and QTH222 is only 1mm. If I were to use this stat I would cut a "washer" from 3.5mm cork gasket to compensate. The above copied from here:- http://www.austinchampownersclub.com/04 Club/02 Members Log In/01 Members Site/03 Parts/Off The Shelf Champ Spares V2.pdf QTH222 thermostat:- https://www.ebay.com/itm/Novo-C-75-Termostato-qth222-Serve-Para-504-505-Peugeot-Gasolina-1977-84-/111022060677 Quote Link to comment Share on other sites More sharing options...
k2timbo Posted February 1, 2018 Author Share Posted February 1, 2018 Thanks for the info, I'll give that a try, Cheers, Tim Quote Link to comment Share on other sites More sharing options...
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