Cylinder head temp gauge

[The patriot]

Where's a good place to hook a gauge to, and hopefully without pulling a head bolt.
What's a good "safe" max reading?
Thanks

 

[BigPapa]

You talking coolant temp? The factory temp sensor is in the head.

 

[The patriot]

Negative.
The cylinder head temperature....

 

[AH64ID]

Ok, I’ll bite. Why?

And what part? There will be 3 distinct temperature areas. Intake runners, exhaust runners, and coolant pockets. The rest will be a mix of the 3. An inch one way or another could give very different numbers. Coolant temp and EGTs are the best indicators.

 

[Missouri Mule]

Coolant temp will tell you if things are getting to hot for the head. The temp sensor in the exhaust manifold going to the turbo will give average temps of all 6 cylinders or can put a temp sensor in all 6 but you will filling the dash 6 gauges. A member who has done this found out no. 6 cylinders runs the hottest ( the banks ram air takes care of that.) If you want oil temp you can always put a temp sensor in for that.

 

[The patriot]

Ok, I’ll bite. Why?

Because this gauge needs to be put to work.....:-laf

Not sure which temp is the one.
I pretty much just want to establish a baseline, and see what's considered to be a good "safe" temperature the head can be run at before I have to think about cracking or warping things.
Which are is the best location for my needs?
The gauge tops out at 340 degrees,.

 

[AH64ID]

You'll melt pistons, melt valves, and damage exhaust manifolds long before you ever hurt the head.

Find the meatiest part of the head and drill and tap it.... but I'm not sure that's a good idea.

 

[The patriot]

Oh, I figured it's a medium duty engine, there would be a specific place pre threaded port in the head for this. ?
I hardly ever work her hard, but there are a lot things to go wrong. Just want to get out ahead (pun) of something if I can.
There are plenty heads out there that failed the mag test. I doubt they all went through total engine carnage to get there.

 

[AH64ID]

I cannot recall ever seeing a cylinder head temp gauge on anything liquid cooled, light, medium, or heavy duty.

 

[Gumby79]

I would be looking for a spot as close to the crack prone areas as posable.
Use a exhaust-manifold-or-pipe-surface-temperature-probeprobe. .
Probably near the back were the freez plug pops out from inadequate flow at low rpm. I would say the useliss bolt hole that obstructs flow to number one intake valve, except this location would run artificially low( heat loss from the fan blowing accrost it). I AM LOOKING At there 12 probe meter with individual alarms. IAT 3 places exhaust 7-9 places.

 

[Timd32]

Ran across this thread about additional cooling of the head if so desired.

www.turbodieselregister.com/threads/217875-Anyone-using-the-Cummins-6-cylinder-cooling-kit

 

[cerberusiam]

What's a good "safe" max reading?

That doesn't exist as a meaningful parameter in a running engine. Somewhere in the engineering specs you might find a reference to the metallurgy that might make apply, but, doubtful you will ever dig that out of Cummins.

 

[AnonEd]

I'm late to the party and ran a cylinder head temp gauge for another member so he could sort out what kind of paint he could use. Normally the gauges is more useful on the front brake caliper for those desert downhill blasts...

 

[The patriot]

Ed, a non contact IR thermometer is what I'd use for that. Add I guess 100 degrees to whatever the hottest reading is just to be safe.

I recently purchased a Pt# 3925226 for the back of the block, #6 cylinder.
I have to get an O ring, a few 12mm bolts, some valves and maybe a foot or two of heater hose. Looks like one hellova spot to get to.
The person I got it from said it was on a school bus, and used for aux heaters.

 

[The patriot]

Ed, a non contact IR thermometer is what I'd use for that. Add I guess 100 degrees to whatever the hottest reading is just to be safe.

I recently purchased a Pt# 3925226 for the back of the block, #6 cylinder.
I have to get an O ring, a few 12mm bolts, some valves and maybe a foot or two of heater hose. Looks like one hellova spot to get to.
The person I got it from said it was on a school bus, and used for aux heaters.