I was wondering if anyone knew how far the probe sets inside the exhaust manifold,can`t find any specs.

 

So long as the tip is in the heat, but not touching the bottom, it should be okay.

The threaded hole in my manifold is 1/8NPT, while the thread on my probe is 1/4NPT.

I had to use a 1/8NPT nipple, with a 1/8 x 1/4 bell coupling adapter.

My pyro works fine with this set-up.

 

I think the PDR website recommends about 1/3-1/2" protrusion into the exhaust stream. I dropped it to the bottom, then brought it back up about 1-1/2".

Daniel

 

You must have a different style than I have.

My probe is ISSPRO, but is of a set length; it can only go as far as the threads permit.

 

Mine is like dpuckett's. The probe is infinitely adjustable for depth, then you tighten the collar and it's locked in place. I'll take a pic of it later. I got mine from DieselManor.

 

Yup, mine has a ferrule and compression nut, and is (was) infinitely adjustable. Now that I have tightened it up on 3 different trucks, it is kinda stuck in place.

DP

 

x2. just have not got mine in yet.

 

I had mine for over a month before I got up the courage to drill into the exhaust manifold!

 

I installed my pyrometer,boost guage and an hx-35.Everything went well and everything works.Thanks for the info.Now it time to dig into the inj. pump.