Hi,
Hope you all had a good New Year.

Does anyone know the thread size of the hole in the Polo radiator that the water temp sender fits into please. I know several people are, like myself, using this rad in their BEC. However, I want to use a RaceTech water tempreture guage and the biggest sender they do is M16x1.5, which is far too small.

Any help would be greatly appreciated. Alternatively, if anyone has the appropriate sender and could measure the diameter of the threaded part that would be really useful.

Many thanks in advance.
Regards
Chris

www.fisherfury.com

Alternatively, mount the racetech sender in a piece of 'in-line' ali pipe.

Jasper,

If he does that, he'll still have a big hole in the rad

Chris,

I don't know what the size is, but the Sierra fan switch fit's straight in - if you just want to plug it.

HTH

Simon

Many thanks for the replys. I am going to get a local engineering firm to make me up an adaptor to allow my smaller sender to fit into the 'standard' hole. I'll take along a scrap Sierra switch to give them an idea of what I'm looking for.

Regards
Chris