Anyone know what temp the air cleaner thermostat goes full open? All the FSM says is it should be full closed at 40F. Even on a warm 85F day it's full closed at startup. At operating temp it looks about 1/2 open. Is this normal? Engine isn't pinging that I can tell. We haven't had a blistering hot day yet for an extreme test. I don't want to wait until I'm 1000mi from home mid-summer to find I should have replaced it.
This is the wax bead thermostat, not the vacuum motor style.
-RC
R.Clarke spam snipped-for-privacy@BlocKmindspring.com RTP, NC, USA