What is this thing?
 

about four inches inback of my oil filter on the engine block toward the transmission is threaded stem with a bolt screwed all the way down. It sort of looks like a drain plug. Any Ideas
Thanks g.

Re: What is this thing?
 

do u have a pic of it, that would help.

David
1TuffZ
zccr.net
https://www.zdriver.com/rides/spec/p...1016465706.jpg

Re: What is this thing?
 

pull it out and look at it
-jeremy-

Oil Pressure
 

That is where the oil pressure sender unit is supposed to go. If all you have is a screw, then your oil pressure gauge will probably read zero.

There is also a head temp sensor in that same area, futher back toward the transmission. If that is off, then your engine will run very bad! (very rich, like it is cold)

http://www.zipcon.net/bleach/pages/zcar/zlogo.jpg