Feb 27

Written by:
2/27/2010 12:28 PM 

I have been flying since Thanksgiving 2009 without a thermostat due to the coolant problem that I had on the way home from Missouri. Yesterday I decided it was time to fix this. I installed a new water pump from AutoZone (not an OEM unit), timing belt, and Subaru thermostat (used). Both the existing pump and belt looked to be in great condition. While disassembling, I noted that my timing belt appeared to be off one tooth on the crankshaft pulley.

I flew 1.1 hours this morning and the cooling system worked exactly as expected (temperature sat at ~195 the entire flight). I spent the time flying playing with my EFI mixture mapping so was at a wide range of RPM.