Just got three Isspro guages; Pyrometer, turbo boost, and trans temp. Already machined and tig-welded a nice aluminum panel to hold them which includes an auxiliary 12 VDC outlet and a clock. But more importantly, I'm really not sure where to put the sender units for any of them.

I know from reading other posts that the preferred place for the pyrometer thermocouple is pre-turbo, but where specifically? Also, thermocouple has a fitting which allows you to adjust how deep it sits down in the exhaust flow.. does it matter how deep you set it?

Turbo boost fitting... Do I drill and tap right into the turbo housing for the NPT fitting? Where specifically?

And trans temp guage... Where to put that sender? Is this another drill and tap situation? Drilling and tapping into the automatic transmission housing sounds like a drag, and risky. Sender came with three adapters for different NPT sizes - is there an NPT plug I can remove somewhere and replace with the sender unit? If it really is up to me where to put the **** thing, what is the best place, and is the placement critical?

I'm planning on using grease on the drill bits and taps as well as super-strong rare-earth magnets positioned nearby to keep chips out of places they don't belong. Anyone got any other tips on this one?

I guess I thought the documentation that came with the guages would have more info on these questions... Silly me.

Thanks in advance, fellas,

Christian

 

Ok, someone on here will post a pic on where to put the temp guage I'm sure. the boost guage line goes right to the intake manifold.You'll see where the boost line goes into the rear of the injection pump. directly behind that line to the rear of the engine about 4 inches you'll see a pipe plug. It's kinda hard to see but if you get in there you'll see it. take the plug out and put your boost fitting in there.as for the trans temp. I weld a fitting in the pan that the probe fitting will fit. [Man that is a lot of fits.] the egt probe is going to go in the exhaust manifold about 2 inches above the flange that the turbo bolts to, and to the rear of center.that may be hard to understand which is why pics. are best. hope this helps, and good luck.


Tim


By the way, the grease is a good idea, but I allways use an extending magnet, you know the one that helps get to them bolts stuck in the frame rails and other places that you cant get your hands into.just stick the magnet in the hole when you finish tapping it and move it around till it comes out clean.

 

Hello,
I am a new member to the list but I am on my 2nd dodge diesel. I am also seeking info on gauge installation. I have found info on auto transmission installs but have not seen any on a manual 6 speed nv5600 transmission. I agree that drilling and tapping on the tranny sounds bad, hopefully there is a different way with the manual tranny. On the boost gauge I have the 24 valve HO engine and to the rear of the fuel filter are 2 plugs one looks to be approx. 3/4" and the second is about 3" to the rear of that one looks to be about 1/2". Are these the right ports to use for the boost on this engine? Instructions are VERY unhelpful so I hope someone can help.
Thanks, Clark

 

For the boost gauge (1st gen) check out this picture: https://www.dieseltruckresource.com/...cat=500&page=2

(thanks to wannadiesel for the pic)

For the pyrometer, this site has good instructions: http://www.dieselpage.com/gipda.htm

As for the tranny temp, Ill let someone more experienced chime in, as I have no idea

 

Clarkus,

Why do you want a temp guage on a manual, it is not really needed just keep it full of fluid and its not like you are going to over heat it like you could an auto.
For your plugs for the boost guage I think I heard that one of them is for coolant and the other is for boost the one thats a 3/4NPT is the boost so you'll need a reducer or two. But go to the 2rd gen forum or the performance forum and you'll get a lot better info on your specific vehicle than here.

Also, fill in your sig with important infor.

 

Robox, I just did my first EGT install Tuesday evening. Took me about two hours in the heat. I first read the instructions that came with the meter. They are helpful but not necessarily gospel. There is an on going debate as to where the probe should be installed. I located where I wanted my probe on the exhaust manifold and center punched the location to prevent the drill from walking. Then I started the engine and very carefully drilled and tapped the hole using a wheel bearing grease as extra protection. The exhaust back pressure blows the shavings and grease out of the manifold. Good leather gloves make this a lot less painful and safety glass are a must. Then I installed the probe as per instructions. I do this stuff (machining) for a living and do not recommend it for the inexperienced or faint of heart because if the drill should break it could cause you to get a new turbo and possibly cuss me like dog. I have made house calls but LAX is a little out of the way.

 

Thanks, Boatnik-

I'm also a machinist.... comes in handy once in a while! (I also built the flatbed on my truck, picture in my gallery)

Great idea to run the engine - hadn't thought about that one.

All the info and links about EGT and boost have been awesome - thanks a lot guys!

Anybody else have more specific info on trans temp sender location? Or a picture?

Christian

 

if you run the engine like that it would probably be a good idea to put tape or something over the end of your tail pipe to create a little extra back pressure so nothing goes through the turbo.

 

apwatson50 is right. I am running a three inch exhaust through a muffler and that generated plenty of back pressure. Good Catch!

 

Boatnik, your right 3in through a muffler would provide plenty of backpressure I was thinking about an open exhaust but me personally would still tape up the tail pipe anyways just for a little extra insurance.

 

You can toast the transmission fluid in a manual transmission. Mopar2ya has a cooler on his Getrag to help keep it alive. As for a temp sender on a manual, what I have seen folks do is weld a fitting onto the PTO cover, and put the probe through that . . .

 

Either that or put it in the fill hole. If you overfill as recommended it will see plenty of gear oil. If I hauled stuff with my truck I'd put one in. The Getrag is put together very tight, I can see it getting really hot with double the design torque going through it at 2,000 RPM in 5th.

Sorta off topic: You guys with 5 speeds, keep in mind that they run coolest in 4th because there is no gear load. One more reason to drop 'er in 4th on a long hill. It's a lot easier on the engine and trans to pull the hill with HP instead of torque. Don't worry about over revving it, that's what the governor's for.

 

I agree with Dave on both accounts. I have my tranny temp sending unit threaded into the fill plug. By pouring a quart in through the shifter, the sender is always in contact with fluid. As for temps--right again, Dave Heading from home (binghamton, NY) north on 81, it only takes about 15 min of pulling those hills at 70 mph and the tranny is up to 230! Pulling the back state roads with real steep grades @63mph in 4th for the same amount of time yields about 190 on the gauge. Plus, my engine just settles right in at 2500 rpms and there's still alot to go with the 366 spring. Matter of fact, I pulled an eclipse on the way home just now coming up one of those steep ones. I was in the slow lane on a 10%er running 60 in 4th. he pulled alongside and we gunned it...he didn't have nuttin for my old rattletrap wound her to the gov in 4th and just eased into 5th, but he was back by a length or two by then.

g

 

So-
I just want to get this straight-
One option is to thread the trans temp sender into the ATF fill hole? Do you just get rid of the dipstick and dipstick tube and unscrew the sender whenever you want to check the fluid level?

Christian

 

Please forgive me for not being specific---my setup is for a 5 speed manual transmission and I only replied because someone brought up the question of why one would want to monitor a manual tranny. Definitely keep your dipstick right where it's at---I can see how my post could have given you the wrong idea Update your sig to include your tranny--it'll be easier for speed-readers like myself to catch those little details

g