Yes, I did the work myself and didn't have one laying around when the
job was completed.

That was my other question to the post on a vernatherm getting stuck
open, shouldn't I see some affect when closing off the oil cooler
opening.

Ross

nrp wrote:

Are you certain you still have a vernatherm (i. e. did it really get
transferred?). They are expensive.

My 172M with an O-320E2D on inspection did not. In the winter I can
completely close off the oil cooler air inlet. It will get warm in the
summer with it closed off though.