On Thu, 24 May 2007 17:35:21 -0700, C B
<cunegonde.van.westfalia@GMAIL.COM> wrote:

>Replaced the waterpump in my 1.9l WBX with no more than the expected
>annoyances. Very proud of myself for no leaks, given it is the first
>time I've worked on a watercooled VW. I still have plenty of lifting,
>revving and radiator bleeding to do. When my lovely assistant returns.
>
>BUT
>
>a) What is the new loud clicking noise coming from my engine that
>varies with engine speed?! If it was my BMW airhead motorcycle, I'd
>say it was a valve out of adjustment. If it was a Subaru, I'd guess a
>sticky or stuck lifter.
>Given the engine got very, very hot but did NOT seize when the
>waterpump seals failed, and the noise doesn't get louder, only faster
>with engine speed... What should I look for? And how expensive is it
>likely to be?
>
>b) Post overheat, my O2 sensor light is on and the engine is running
>very rich (judging by smell). The PO somehow damaged the O2
>sensor-to-green wire connector so almost all the wires are broken on
>the harness side if the connector. Do I connect the black wire to the
>wires running free inside the green wire in the harness, or to the
>inner green wire inside the same green insulation? Bentley offers no
>clues. I believe the O2 sensor is a "generic" Bosch.
>
>
>--
>Bretts
>
>1983 1.9l WBX Ivory Westfalia "Cunegonde"

bretts:

clicking noise will probably go away after lifters get fully pumped up
with oil, in which case there is nothing to worry about.

should be a 1 wire O2 sensor. connect wire from sensor to inner wire -
outer wire is ground shield, and will short sensor if accidently connected
to signal wire.

dan