Date: Mon, 1 Mar 2004 09:14:48 -0700
Reply-To: Ryan Mark Shankland <mark.shank@COMCAST.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Ryan Mark Shankland <mark.shank@COMCAST.NET>
Subject: Re: 87 Westy has loss of power, also '87 westy O2 sensor...
In-Reply-To: <005401c3ff2e$1a92c270$fbef79a5@jw1dy3621>
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Thanks to Joel and everyone; I think the tapping helped. I ended up
tearing the guts end of the o2 sensor off with an adjustable wrench and
heating the flange with the mapp gas until it was glowing hot, then
banging on the closed-end wrench with a hammer to slowly work the sensor
out while red-hot sparks dropped on my hands-- fun. This took some
repeats of heating and the threads are mostly intact but need some
cleaning. It looks like whomever did it last cross-threaded it in there,
then it did a great job of seizing in place. Use the anti- sieze,
please! I think of myself as a fairly mechanical guy but no mechanic, I
just praise the VW designers for giving enough room to work on this one.
A simple job but it could have been botched easily, costing me a new
catalytic converter as well, and the o2 sensor wasn't cheap.
Thanks again,
Mark
-----Original Message-----
From: Joel Walker [mailto:jwalker17@earthlink.net]
Sent: Sunday, February 29, 2004 6:40 PM
To: Ryan Mark Shankland
Subject: Re: Re: 87 Westy has loss of power, also '87 westy O2 sensor...
> I need some advice before I shear the threads off of my first oxygen
> sensor, I have an '87 7-pass with the 2.1, pretty easy access to the
o2
> sensor that won't budge! I've tried it cold, at temperature and with
> Mapp gas on the flange, and cut the wires to fit a motorcycle wrench
> entirely around the unit to avoid shearing it and hammered on the
> wrench, still no movement! Please help, I need this by early
tomorrow if
> possible-- it is bathing in WD40 again as we speak-- I didn't want
to
> Mapp gas the sensor in case I had to rewire it to get to a shop-- or
> otherwise damage it further. Advice?
tap it (hard) with a hammer and punch ... or a socket extension. just
some solid piece of metal that you can place against the sensor flange
(the part where you are trying to unscrew) and bang it with a hammer.
not whack it, but just hit it kinda hard. move to each face of the
flange you can get to and bang it. do this MANY times ... like 40 to 50
times. that often loosens the rusted threads and allows the
nut/flange/whatever to be screwed off.
good luck!
joel
p.s. wd-40 is NOT the right stuff. you want Liquid Wrench.
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