On my old 79 'loaf, I mounted the sensor on the number 3 exhaust
manifold stud.   I WANTED to know how hot things were down
there.   IIRC, even on a big load climbing hills with kayaks on the
roof and in 95 degree heat, my temp never got over 475 F.  My 2.0 had
dual 2 barrel Webbers and a 3/4 cam et al.  and a big external oil
cooler  One advantage of having the sensor on the exhaust stud is
that you get much quicker temp changes showing up on the gauge.  I
had it mounted under the factory head temp sender for the FI system
and it rarely read over 250F.  Having the sensor underneath the
sparkplug might be accurate, butI always had sealing issues and
seemed to eat sender rings way too easily due to pulling plugs
frequently for tuning those webbers.  A brown electrode is a BEAUTIFUL site!!

DM&FS

At 06:49 AM 11/30/2005, Mountaineer wrote:
>Where did you install the head temp sensor?  You may be getting false
>readings.
>
>Adam P
>))><((
>Charleston,SC     Coburn, WV
>
>"Mountaineers are always free"
>----- Original Message -----
>From: "phil cain" <bearsvw2000@YAHOO.COM>
>To: <vanagon@GERRY.VANAGON.COM>
>Sent: Tuesday, November 29, 2005 9:34 PM
>Subject: Cylinder head temp?
>
>
>>I am driving a 1980 westy, engine 4000 since a
>>complete overhaul. all the cooling tin is on and
>>sealed, fuel injected, timing correct, hi-test gas.
>>the running temp on the head at 60MPH is around
>>425-450, if I pull a light hill the temp will go to
>>500-550 and higher if I pushed it instead of backing
>>off, if this temp was correct I should have dropped a
>>valve by now, what could be wrong with the system to
>>cause such temps. Phil
>>
>>
>>
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