Author Topic: Air Temp Sensor Location  (Read 609 times)

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Offline cal16v

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Air Temp Sensor Location
« on: August 08, 2017, 11:13:11 AM »
Thanks for reading...

I really need some help here trying to determine the various ATS locations for the c20xe over the years. I started out trying to buy a silicone intake hose to replace the perished original on mine and ran into a hitch... there's no provision in the silicone replacement to take the ATS. I contacted Roose who say they have never made a section with provision for an ATS.

The Haynes manual states;
" The inlet air temp sensor is fitted to the inlet air trunking, alongside the mass airflow meter, on the following models:
a) C20 XE models from 1993 onwards with Motronic M2.8.
b) X20 XEV models with Simtec."
 
Firstly, I thought Motronic M2.8 came out in 1994. Secondly, it begs the question; where was the ATS located prior to 1993?

My build is 04/1994, M2.8 with the ATS located in the air trunking just in front of the air box, alongside the timing cover and at an angle of 30 deg or so for clearance.

I'm thinking my options are either to relocate the ATS to where ever everyone else has theirs and use the Roose silicone section mentioned, or fabricate an aluminium section with provision for the sensor.

Thoughts, better still pics or links would be extremely helpful.

cheers

Offline cal16v

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Re: Air Temp Sensor Location
« Reply #1 on: August 08, 2017, 11:38:55 AM »
So here's a pic the same as my air trunking


Offline ALZ1307

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Re: Air Temp Sensor Location
« Reply #2 on: August 08, 2017, 13:54:49 PM »
So you need a new hose section?
Lewis Hamilton said that winning his first race felt better than having sex. Kimi's reply to that was, Maybe he never had sex.

Offline cal16v

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Re: Air Temp Sensor Location
« Reply #3 on: August 08, 2017, 22:47:09 PM »
Well yes, that's the short of it...  :)
But I fear it's not going to be an easy fix as the item is NLS and Roose don't offer any option.

That's why I asked about other sensor locations in the hope I could re locate the ATS and then use the parts still available.

cheers

Offline cal16v

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Re: Air Temp Sensor Location
« Reply #4 on: August 09, 2017, 08:38:35 AM »
Well a problem solved and not that difficult after all...
 


In time I'll replicate the shape using a longer aluminium section and thus minimise the size of the silicone joints.

Offline cal16v

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Re: Air Temp Sensor Location
« Reply #5 on: August 10, 2017, 09:21:14 AM »
Picked up the correct materials today for a second attempt at this. For anyone needing or wanting to do this you'll need preferably aluminium tube 3" (76mm) bent @ 30 deg. This angle is a perfect match from airbox to the MAF without needing to twist the section as in the pic above.

Offline calibul

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Re: Air Temp Sensor Location
« Reply #6 on: August 10, 2017, 14:54:25 PM »
Nice. Well done mate!
And thanks for the excellent picture!  :)

Offline cal16v

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Re: Air Temp Sensor Location
« Reply #7 on: August 12, 2017, 11:00:33 AM »
Strike while the iron's hot so to speak...



All done and very happy with the result. I might add for anybody following this you'll notice I've used a reducer in silicone from the pipe to (MAF 76mm to 70mm). Otherwise you could pack the inlet side of the MAF with a turn of felt, rubber or similar and just use a straight 76mm joiner.

cheers

Offline sealeysonic

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Re: Air Temp Sensor Location
« Reply #8 on: August 12, 2017, 22:11:06 PM »
looks tidy that mate...nice job

Offline cal16v

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Re: Air Temp Sensor Location
« Reply #9 on: August 12, 2017, 22:28:22 PM »
Cheers calibul and sealey... it's much better to drive having eliminated the air leaks I had with the old rubber section.