Dave writes:
> This sounds like aluminium oxide. Anti-sieze is Al powder in light
>grease. At high temperatures, the grease could liquify, gooify the sensor,
>and burn off. I'd go light on the antiseize.
Funny you should mention that. My other friend Dave says he thinks he's
got some antiseize that says "sensor safe" (which implies the stuff I
have might NOT be safe). Have to check this out.
>A couple of questions though; How did you mount your sensors? There
>are no existing holes in my MBG manifold. The cast iron should be thick
>enough to just drill and tap. I might try this with a spare manifold. As I
>remember, cast iron is difficult to weld.
Might be. How about brazing on a nut? I'm not a metal worker but I've
heard that welding cast iron is a pain too. My other friend Dave is
trying to weld a hole shut on a 52 Packard intake manifold... The
Cyberdyne people sell a flange and a gasket. You drill a O2 sensor
hole in your exhaust and two smaller holes to mount the flange & gasket.
*I* was lucky. My car comes with O2 sensors (an almost modern Triumph!)
Oh, one of the guys on the TR8 mailing list (Hi Steve) actually mounted
his sensors in the exhaust manifold (like you suggest) and not in the
downpipe so that might work for you. As for sensors, I think any of
the zirconium dioxide style O2 sensors will work. There are fancy
heated sensors but you really don't need one of those. The Bosch
part number on the TR8 O2 sensors is 0 258 001 051 (in case you
just want a reference part number). If you shop around, you can find
one for about $40.
jim
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