Folks,

First, let me thank everybody who replied to my "new clutch, now leaking
oil" question. Going back to the shop tomorrow. Will post the results.

One thing i did discover: i had the shop guys replace my Temp II sensor
while the van was up on the lift for the clutch work.

No Difference in hot/cold performance at all.

I also swapped out the stock thermostat with the cooler 80 degree model.
My needle is now at or below the LED rather than at or above.

Still, no difference in performance.

So... i disconnected the O2 sensor.

A-Hah! Now, once warmed up, my van seems to pull through the gears much
more consistently. There is still, it seems, more torque when the
vehicle is cold, but the 2nd gear the 3rd performance is much better
with the O2 sensor out of the loop.

I'll have gas mileage figures later in the week.

-jspeer
'89 Westy, "Mystery Machine"