EGT Gauge sensor location

[noogie]

Hi all

I got my EGT gauge from the USA yesterday, and as previously mentioned on my other post, it was decided that the best location would be where all manifold pipes merge on the manifold.

I have attached a couple of pics in order to establish the best spot.
I'm thinking I'll mount it on the small raised circular spot just after where the pipes meet.

What do you think?

[mools]

That'll do it. Will it fowl the turbo heat shield one installed? or are you going to throw that away? Mine is in the same position just angled back towards the bulkhead as my sensor is quite long. BTW it is the tip of the sensor that reads the temp so make sure the tip is in the center of the gas stream no touching the manifold and giving you the manifold temp reading.

Ian.

[noogie]

Thanks for that.
I can't see why I couldn't modify the heat shield so I don't have to lose it.
What gauge welding rod did you use for the manifold adaptor plug?

[mools]

I guess you could easily snip the shield, personally I've done away with mine.

Not sure what you mean with the welding rod. My sensor is mounted in a brass compression fitting tapped into the manifold, it has a tapered thread so is pretty much self sealing. I know next to nowt about welding. Interested to know how you intend to fit the probe though.

Ian.

[noogie]

I'll have a go at explaining it.
An 8mm hole is drilled into the mounting place.
Over this home you weld a special steel sleeve which the sensor probe feeds thru into the manifold. The probe is then fixed by a threaded coupling to the sleeve.

I hope that makes sense.

[Nick S]

Why not just drill and tap a hole in the manifold and use a compression fitting as Mools suggests, that way no need to weld

[noogie]

What's a compression fitting?
Any photos?

[Dougal]

What's a compression fitting?
Any photos?

Like this, there are several different styles but you need steel or stainless steel. Brass will soften and keep loosening at exhaust temps.

[steveG]

There's some piccy's and instructions at the bottom of this page too:
EGT Probe, Exposed Tip [TC-KEGT] - $36.50 : auberins.com, Temperature control solutions for home and industry

Steve

[robbotd5]

Hey mate, just dump the turbo heat shield. Mine has been off for about 20000ks with no Ill effect. Along with the engine accoustic cover. A lot of that was towing our camper (23ft van!). Agreed about the ideal position for the sensor.
Regards
Robbo