I think I’m all calibrated now. I got the Oil Pressure to stop being a negative number…not quite sure how – but playing around with parameter 6 (the other Scale Factor) in the range of 32767 (actually about 512 above it) seemed to set the sign bit and once set it has remained.

 

I also discovered that the butterfly set screw on the intake was down a little too far – i.e. the throttle was open about an 1/8” at idle. I reset that to about 1/16” and started it up again. Oh my, she prrrrrrrs so nice now.  RPM now – still without prop – is 1750-1800, Oil Pres 65-70, Fuel Pres 50.

 

I ran it for about 5 minutes only cracking the throttle a couple of times just to see what would happen (can’t help myself) – and with the tiniest of movement of the throttle it wants to jump to 2500-3000 RPM!  So next – other than chasing little leaks of fuel, coolant, and oil – is mounting the prop and looking at the MAP to see how well the MicroTech stock settings fit. I’ve got an old Laptop I’ve got to rebuild so I can install the MicroTech software. That will make reviewing the Maps and Data Logs much easier than trying to review them on an LCD 2 line display (that’s the handset that comes with the MicroTech).

 

Thanx,

Joe Hull

Redmond (Seattle), Washington

Cozy MkIV #991 (working on Engine & Electrical & Finishing)

http://www.maddyhome.com/canardpages/pages/JoeHull/index.html