turbo oil feed from head thread size

S0LJAH · Post by **S0LJAH** » Wed Jan 21, 2009 5:25 am

hey guys just trying to chase a leak from the rear of my engine eliminating all options.

what thread is the oil feed from the rear of the head on a 4g63 vr4
ive blocked it up as my feed is from the filter housing

ive just got a metric fine bolt in there at the mo but hoping maybe its a slightly different thread bpt or something that is close but maybe just not sealing

cheers

89coltgt · Post by **89coltgt** » Wed Jan 21, 2009 7:25 am

It is not a bsp thread. Did you use a copper crush washer with the bolt? The correct bolt can be sourced off of the nt dohc heads.

citrus3000psi · Post by **citrus3000psi** » Wed Jan 21, 2009 11:30 am

I wouldn't use a bolt. I would use an allen screw with some threadlocker on it.

Oh the size is M10 x 1.25

S0LJAH · Post by **S0LJAH** » Wed Jan 21, 2009 8:11 pm

cheers guys yea the bolt i had in there is a 10x1.25

ive put locktite and a copper washer on it
have pulled it out and reinstalled it so ill se how it goes