[urq] Silicone & O2 sensors

[Buchholz, Steven]

I've heard about this possibility as well ... but the one I hear more often is that anti seize lubricant can damage an OXS as well.  I did a web search, the most promising lead was:

Automotive Recalls and Technical Service Bulletins for 1987 Volkswagen Fox L4-1781...
... CMPGPQ MAR 89 Campaign - Disconnect OXS Sensor Light ... 269302 JUL 93 Oxygen Sensor - Failure Due to Silicone ... TECH810501 MAY 81 Vehicle - Manufacturing Date Codes of Bosch Componen...
www.alldata.com/TSB/62/87620808.html

... but it appears you have to have an alldata subscription to be able to view the details.  If you think about it, silicone is used in numerous components in the intake tract, so it may not be the silicone itself that does the damage ... perhaps if you allowed the RTV to fully cure before running an engine it would be OK ... 

Steve B
San José, CA (USA)
> 
> What is the list consensus and real world experience on the interaction of
> O2 sensors and silicone.
> I think my recent URQ closed loop - open loop issues are from just such an
> "allergic" reaction.
> What I have heard in the past from what I believe are some very
> knowledgeable folks is "yes its OK", and "no it kills them".
> Anyone know for _sure_?