Pyrometer/EGT

Try the patrol forum
this link[url=http://www.patrol4x4.com/forum/]

Hi Barnesy, mate if it is a EGT I am pretty sure you will not get any readings under Idle so what Im asking is have you taken it for a run or are you expecting to see a reading sitting in the driveway
I only just put in a VDO Pyro gauge in my L/C TD in september last year I drilled a hole in the manafold welded the suplied nut and droped the sender in so it sat about half way in the middle of the pipe then locked the adjuster put 12 volt power to it and then started the 4b and sat and waited and waited and waited but no movment on the gauge until I took it up the road for a spin then it worked but if yours is new and still does not work I would take it back or at least take it to an auto elec to test then at least you have covered all basses, one thing Im a little hazzy about is the SMALL hole and the HOSE CLAMP? I dont remember any of that in my kit or in the fitting Instructions.. just a thought?
well mate good luck and I hope it works out let us all know how you go mate .

Regards J.B.

Did you take the vehicle for a run, and put the engine under a bit of a load??
You should probably get the temp up to about 500 to 600.
My EGT died last week- and it was the thermo sensor thingo that failed. Waiting for a new one & will reinstall this weekend.

I'm just wondering?? To test the system, I wonder if you could hold a gas cig. lighter at the sensor (removed from exhaust of course) to test it??

Hi Barnsey,

Sorry to hear you bought such an inferior product (only joking! VDO are usually fine).

As mentioned by others, I think the VDO dial starts at about 300 C? So you won't read anything until there's a bit of load on the engine. The gas lighter flame applied to the sensor tip should provoke a reading too - just don't hold it there until the needle goes off scale!

If there's still no signs of life, measure the resistance between the two sensor leads (when disconnected from the gauge). My TCs typically measure 11 to 15 Ohms between the leads. Also, there should be NO continuity between either lead and ground (vehicle body or sensor sheath).

Also check that the leads are connected to the gauge the right way around. If they're reversed, the needle will never budge. (I guess it's remotely possible the leads are incorrectly identified from the factory. It won't do any harm if you swap them over to try it for a short period.)

Hope this helps.
Ian

I have a Autometer EGT and it reads about ambient temperature when I turn the car on. On Idle its around 150deg and at 110kph its about 400deg. Sensor is mounted about 60mm after Turbo in exhaust pipe. Was too expensive to remove turbo and drill to put it pre turbo. One thing yopu must not do is alter the wire from the sensor to the gauge.

'Morning Barnsey..
How did ya go with the EGT ?? Did you take it for a run??
Cheers