I'm getting into the happy world of wiring at the moment, and I've come to the 2 senders on the carb side of the pinto, what does what, and what threads are they? (specifically the big one at the bottom right, and the little one at the top left)

Also, there's a pipe that goes from the carb to a doodah on the engine, fairly low down. wassat for?


Cheers
Specialist subject: Not engines

big one is the oil low pressure warning switch that is just an on/off for the dash light, 1/4 NPT if irc. You can put a t-piece here and fit a sender for an oil pressure gauge too

little one on the cylinder head is the water temperature sender, some kind off straight fine thread, seals on washer





[Edited on 9/4/09 by Mr Whippy]

the pipe is your crank case breather. Oil mist gets recycled into the intake manifold and burnt off. It's to stop your car leaving oily mess on the road.

You could alternatively fit a catch tank, Nick205 is/was fitting one to his pinto.

The other 2 as per Mr Whippy's description

[Edited on 9/4/09 by jabbahutt]

Cheers, This place really is far too handy.

the thread in the water temp sender is 1/8 NPT IIFC correctly

If you are going to use a catch tank remember to remove the valve jobbie at the engine end of the breather pipe. either make up a new elbow or Burton sell one cheapish...

It has a flap valve inside and doesnt work properly with a catch tank, discovered that after much searching on here trying to work out why my catch tank kept filling up and overflowing!....