Kitfox 4 + HKS, the saga continues

[rwaltman]

1 ... What gear ratio do you have?
2 ... I do recall that the Powerfin is pretty light weight.
3 ... You could measure the inertia to see if it is over/near the limit.
4 ... You have the Lost Hills motor mount as well
5 ... Are the carbs synced?
6 ... check the balance, pitch, and tracking of the prop.
7 ... Best of luck

1 - I believe is the 3.47:1 - Will check
2 - That's the claim. Around 0.75 Kg per blade.
3 - In my to-do list - From Powerfin's web site:
"POWERFIN Propellers are 2,500 kg/cm2 for a big three-blade model and 1,800 kg/cm2 for a two- blade model."
4 - Yes.
5 - In my to-do list - I asked this to be done, don't know if it was done, and wouldn't trust the answer anyway.
6 - Did check the tracking (with a very rudimentary setup), waiting on a new torque wrench to do more.
7 - Thank you!

Roberto.

[rwaltman]

Today's update - Did around 25 minutes taxiing, without the tailwheel unlock it felt very much under control. Of course, I did not run very fast or rise the tail. And most of the time dragging the brakes.
Can make a U-turn in two fuselage lengths (roughly, less?)
I was paying more attention at the taxiway lights than at the turn radius, believe could make it better with some practice.

Found the previous owner(s) check list. It says after engine startup, warmup while idling at 2000 rpm. Cannot do that without "the shakes".
At 2200,2300 rpm begins to be OK.

But it did not feel as bad as last time. Followed Mnflyer suggestion of not using the fuel pump; was more proactive correcting the throttle; also let the engine reach higher temps.

More squawks: One CHT stoped working. The oil temp is erratic, goes up and down, shows zero, climbs again. Neither one of the fuel gauges (installed in the wing roots, not the panel) work.
The tension spring on the pilots side left rudder pedal falls. (too long? overstretched?)

[ Still thinking if I should stop payment on the check with which I paid for the inspection etc. Probable have only a few more hours to do so. ]

I am planing to do several hours taxiing, will try to put at least 45 minutes every day after work. Can/should I log this time as PIC, even though I have no intention of taking off?

To be continued.

Roberto.

PS: Added pics of the engine installation here: http://www.teamkitfox.com/Forums/album.php?albumid=117