Safest Bet

Jscherbs · 06-18-2009, 11:00 AM

Looking to install my pryo probe. I was wondering if it would be easier to take the manifold off to drill and tap the new hole or would running it and leaving the manifold installed would be an easier bet? Just seeing what you guys did... Or if anyone has taken the passinger manifold off, also was it a pain in the arss to get it off?

**DSTRBD** · 06-18-2009, 11:02 AM

Not worth it to take off in my opinion, it kind of a pain. Just leave the truck running when you drill it and everything will blow out. Make sure to wear glasses though so no shavings get in your eyes.

**Meyerperformance** · 06-18-2009, 11:04 AM

Also make sure to apply oil to the bit for lubrication. I also put grease on the tap to catch the shavings.

**seth999** · 06-18-2009, 11:07 AM

If you dont remove it you risk getting metal shaving through the turbo which isn't good...iv never removed mine on my d-max soo idk how hard it is I just drilled the exhaust right after the turbo there is very little difference in the readout ima get a BD manifold soon thats pre tapped ne way as soon as I get my boat sold.

**usafracer** · 06-18-2009, 11:08 AM

I left mine running and went slow. Make sure you have glasses on it will blow metal shavings at you.

**usafracer** · 06-18-2009, 11:09 AM

Quote:

Originally Posted by seth999

If you dont remove it you risk getting metal shaving through the turbo which isn't good...iv never removed mine on my d-max soo idk how hard it is I just drilled the exhaust right after the turbo there is very little difference in the readout ima get a BD manifold soon thats pre tapped ne way as soon as I get my boat sold.

I had probes both pre and post turbo on my 04 and the temps were sometimes as much as 350* different and that was stock!!

DunesRunner08 · 06-18-2009, 11:09 AM

DO NOT PUT A PROBE AFTER THE TURBO.... you can be as much as 800-1000 degrees off... the probe needs to be as close to the cylinder head as possible to get the best read out.... post turbo is a bad bad bad idea... just because its easier doesnt mean its better

I had a mechanic at one of the shops i used to work for back in the day who always put them post-turbo and4 trucks came back with issue because they pushed their trucks and thought they were in the clear.... one of them was reading 1200 degrees and judging by the damage he was well over 2000 degress... very bad idea

**seth999** · 06-18-2009, 11:16 AM

IDK it was my buddies idea he said pre/post turbo is not that diff. but he has only been cerified on big engines not that much experience wih truck diesels

DunesRunner08 · 06-18-2009, 11:56 AM

well he may be your buddy, and may be a great wingman.... but dont let him near your truck... LMAO

Its a huge difference and is a very bad idea

Hog Ryder · 06-18-2009, 12:04 PM

I just put in my pyro gauge last weekend. I drilled into the passenger side manifold without the truck running. I drilled two pilot holes before I used the main bit and I collected the shavings out with a magnet (A magnet I bought from Napa that resembles a car antenna that you will eventually be able to stick into the hole and collect all shavings.) after I drilled and also after I tapped. Zero problems.