cummins pyrometer
 

hi, i have a 96 dodge with a 12 valve and im looking for anyone that has any tips for installing a pyrometer.
if anyone has done it and can post pictures or just help out id appreciate it.
thanks

:hi: use some grease so the metal shavings dont all fall in the hole and have a vacume on it. a magnet that will fit in the hole will help to get some out too. same thing when tapping.

:hi:

Take your time when using Tap

:howdy:

:hi: Welcome to DB!!

And run the tap in 3/4 of the way - no more.


I might be able to snap a pic for you tonight.

are they all threaded the same?
what size tap do they use?
anyoneknow exactly where to drill the hole?
i know theres a serperator in the middle and theres parts that are thicker than other?
any help would be appreceiated

Depends on your thermocouple. Some are 1/8" npt (the preferred one), some are 1/4" npt, and some are post turbo.

The site I usually refer people to is down right now.

its a 1/8" npt fitting.
so it will be a 1/8 tap?
where can i buy anti seize

The bit should be letter "R" for 1/8" npt and a 7/16" bit for a 1/4" npt.

Anti sieze is available from just about any parts store - I like the Nickle stuff myself.

When I drilled and tapped mine I had a buddy hold a shop vac close to the bit and I cleaned out unside the manifold with a Q- tip with grease on it. Its best to keep out and many chips as possible.