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More info from Walker Prodcuts Engineering - Ref Air and Soldering

Hi JR,

What you posted from Walker about the Goretex was interesting. I've always considered that business about the reference air depending on the interstices within a stranded wire a bunch of malarkey, at least as much as the warnings against soldering (and thus filling those gaps) is concerned. It was too hard to believe the migration of O2 through the zirconia followed those wires all the way to the wiper motor. Apparently, it was grounded in fact, although as your fortunate reply from Walker indicates, a poor initial design.

I'm actually writing in response to your post about the heater not working. The fact you always measure 7 ohms indicates it does indeed work, but you're measuring it with the exhaust system warm. Yes, I've done it. Try checking the resistance using a jumper to supply battery to the heater (fuse 4 if we're discussing a 240 here) without running the motor. Just let it heat up for a minute, then pull the plug and quickly measure to see the resistance fall through the temperature range without the external influence of a hot exhaust.
--
Art Benstein near Baltimore

I wonder if other dogs think poodles are members of a weird religious cult.
-Rita Rudner






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New Which O2 sensor to buy
posted by  J.R.  on Sun Nov 9 14:52 CST 2008 >


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