[Aussie Mike]

Water temp presented the biggest chalenge. The factory temp sender screws into the front of the passengers side cylinder head. There's a matching tread in the back of the drivers side cylinder head that's plugged. I couldn't see any other really convenient places where I'd get an accurate reading of what the tem is inside the engine.

The hole for the sender is only 12mm though so there's no way to make an addaptor to fit. This called for drastic measures i.e. attacking a perfectly good working cylinder head with a big drill and tapping it out to a larger size.

With oly one go at it I decided to make a couple of fixtures to ensure it all went in straight and in exactly the spot I wanted. I fabricated this piece to align the drill and keep it square to the face.