Monday, August 19, 2019

FWF inspection

I pulled the cowling today and inspected the FWF area.  Not the first time I've done this but I was being very thorough.   Found a couple of minor issues:

1.  Slightly loose bolts (castle nut style) on throttle and mixture cable rod ends.  Tightened these until snug and put in new cotter pins.  I reversed the mixture cable bolt and used a shorter one because there was slight wear on the lower cowling from rubbing at full rich mixture setting.

2. Broken L-bracket for the sniffle line.  This bracket clamps to the exhaust using a stainless hose clamp, with an Adel clamp holding the sniffle line.  Looks like heat and flexing broke it at the bend.
I fabricated a new one using .018 stainless steel.  Hopefully this will be more durable.

Broken bracket and new one fabricated from steel:



Thursday, August 8, 2019

Out of Phase 1.

I completed phase 1 a few days ago (see screenshot below - happened to grab a screenshot at the exact magic time).

Still tweaking stuff - need some engine data to tweak fuel injection nozzles.  I'd like the engine to run more smoothly lean of peak and so far two cylinders (1 and 4) seem to be leaner than the other two.  Don at Airflow Performance is looking for some detailed data to help tweak this.

Also planning to get paint done very soon.

Ignore the oil temp - it goes up a bit in a climb but settles right down, I haven't seen it over about 210 or so.