Hi All,

I've rummaged through my misc. metric hardware and stopped in a few bolt suppliers and have not been able to find something to use to plug this hole (see attachment).  Looks to be a about 10mm x 0.667 th/mm.  So what did the rest of you guys use?

Getting close to trying to fire up this thing......

Perry Casson 

[David Leonard]

I think the stock application is the oil pressure sensor.  However, on some housings there is an identical water port right next to that one that has a temp sensor in it.  I plan to see if I can get mine to work as an oil temp sensor in that hole.  Otherwise, you can get (somewhere) a little alan plug that goes in there.  Maybe from Atkins or Mazda. 

I am wondering how I am going to plug the heater water outlet that is in your picture.  Anyone have the solution?

Dave Leonard