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  Topic: Nanchang MAUW
stephen.hayne

Replies: 25
Views: 24558

PostForum: Yak-List   Posted: Sat Mar 05, 2022 1:09 pm   Subject: Re: Nanchang MAUW
At some point in the future I plan on adding an adjustable rudder trim.

I have adjustable rudder trim and it makes no difference. Still feeds from the left. I also have 2-axis Dynon autopilot ( ...
  Topic: Compressor charging
stephen.hayne

Replies: 21
Views: 9127

PostForum: Yak-List   Posted: Wed Aug 04, 2021 12:37 pm   Subject: Re: Compressor charging
Stephen, when you action your snot valve in the cockpit, what do you see on your Main Air gauge ... I mean what happens ?
Nothing happens - the check valve is upstream, so all pressure is kept in the ...
  Topic: Engine roughness at low power, 82% RPM?
stephen.hayne

Replies: 10
Views: 4672

PostForum: Yak-List   Posted: Wed Aug 04, 2021 12:33 pm   Subject: Re: Engine roughness at low power, 82% RPM?
You could use a propane torch but don’t lite the torch. Just use it like a sniffer and just wave the propane gas around the joints I will do the same thing with a lot less danger.

This is beyond ...
  Topic: Compressor charging
stephen.hayne

Replies: 21
Views: 9127

PostForum: Yak-List   Posted: Wed Aug 04, 2021 12:22 pm   Subject: Re: Compressor charging
I agree that the "pooling" of the drool is now further than the snot bottle - but, I argue that the line and components are all SS, except for a brass elbow+union (perhaps better than the st ...
  Topic: Compressor charging
stephen.hayne

Replies: 21
Views: 9127

PostForum: Yak-List   Posted: Sun Jul 11, 2021 6:57 am   Subject: Re: Compressor charging
I am obviously not making myself clear! I certainly would not recommend a system of pushrods or cables going through the firewall to turn the water drain tap. What we do is to move the entire water dr ...
  Topic: CJ-6 flap issue
stephen.hayne

Replies: 5
Views: 4126

PostForum: Yak-List   Posted: Mon Nov 23, 2020 12:28 pm   Subject: Re: CJ-6 flap issue
I'm late to this party, but I had this problem for a year, and finally just replaced the bungee - problem sorted... Smile
  Topic: Shimmy vibration?
stephen.hayne

Replies: 6
Views: 8012

PostForum: Yak-List   Posted: Wed Sep 09, 2020 3:29 pm   Subject: Re: Shimmy vibration?
This is probably too late, but I was experiencing shimmy at 60+ knots, that I just couldn't seem to fix. Balanced tire, rebuilt dampener, rebuilt strut, rebuilt torque links (with new brass bushings ...
  Topic: Mag timing
stephen.hayne

Replies: 6
Views: 6587

PostForum: Yak-List   Posted: Mon Jun 08, 2020 7:36 pm   Subject: Re: Mag timing

All of you guys need to screen shot the info below and put that in your technical data folder for condition inspections.  It doesn’t get any clearer than that.  

If Dennis was one of the X-Me ...
  Topic: cold starting savvy, Housai... advice?
stephen.hayne

Replies: 6
Views: 6648

PostForum: Yak-List   Posted: Sat Nov 30, 2019 7:16 pm   Subject: Re: cold starting savvy, Housai... advice?
Ah, good advice on TWO E-Z pads, thanks.
Apparently didn't have my 1 pad (on the sump) plugged in nearly long enough for yesterday's frustrating, air wasting attempt.
Seems a 2nd pad a wise invest ...
  Topic: Covering Ailerons of YAK
stephen.hayne

Replies: 24
Views: 22670

PostForum: Yak-List   Posted: Thu Nov 28, 2019 10:31 am   Subject: Re: Covering Ailerons of YAK
Wow, pix look great!How long did you invest in this project?
Just curious---

Justin
N280NC

Sorry to take so long to reply, I missed your question. The whole airplane re-assembly and refurbish ...
  Topic: Prolonged idling/taxiing
stephen.hayne

Replies: 12
Views: 10757

PostForum: Yak-List   Posted: Wed Oct 16, 2019 8:09 am   Subject: Re: Prolonged idling/taxiing
Here are some links to the manual pages for adjusting these screws... (and the Fuel Flow that I installed).

https://drive.google.com/drive/folders/1DKFaSiQNhG2ar0QLg8qSlwTcU99xpqT2?usp=sharing
  Topic: Prolonged idling/taxiing
stephen.hayne

Replies: 12
Views: 10757

PostForum: Yak-List   Posted: Sun Oct 13, 2019 4:42 pm   Subject: Re: Prolonged idling/taxiing
This is a bit tricky to answer, because it depends on how the "cruise" mixture screw has been set, and how the "idle" mixture screw has been set. There are manual pages describing ...
  Topic: Prolonged idling/taxiing
stephen.hayne

Replies: 12
Views: 10757

PostForum: Yak-List   Posted: Sat Oct 12, 2019 1:27 pm   Subject: Re: Prolonged idling/taxiing
Sorry! I had CJ and Housai on the brain...
  Topic: Prolonged idling/taxiing
stephen.hayne

Replies: 12
Views: 10757

PostForum: Yak-List   Posted: Sat Oct 12, 2019 11:35 am   Subject: Re: Prolonged idling/taxiing
If plug fouling is the concern, this can be "fixed" by decoupling the mixture from the throttle, and leaning aggressively on the ground. Takes about an hour, and some people reverse the arm ...
  Topic: CJ6 prop blade leakage
stephen.hayne

Replies: 12
Views: 8899

PostForum: Yak-List   Posted: Sat Oct 12, 2019 11:30 am   Subject: Re: CJ6 prop blade leakage
Those "screws" hold balance weights. Best to start by leaving them off (unless you have an exact pic of how you took them off and marked the blades, etc.).

Then, get a prop balancer and ...
  Topic: Marvel Mystery oil
stephen.hayne

Replies: 22
Views: 15915

PostForum: Yak-List   Posted: Tue Aug 06, 2019 8:42 am   Subject: Re: Marvel Mystery oil
...immediately
draining it all out and adding brand new clean oil. You're draining all
that bad crap out of the engine.

Doing this the first time with an engine that has lots and lots of hour ...
  Topic: Hot starts
stephen.hayne

Replies: 12
Views: 9706

PostForum: Yak-List   Posted: Sat Jul 13, 2019 6:14 am   Subject: Re: Hot starts
I had my first "hot" start issue with my 'chang. I now have 100+ hours in it, so not a total newbie, still learning tho, of course.

When "cold" it starts great with the normal ...
  Topic: Another weight and balance question
stephen.hayne

Replies: 6
Views: 7368

PostForum: Yak-List   Posted: Sat Jul 13, 2019 5:19 am   Subject: Re: Another weight and balance question
Here mine - just before certification last year and all old radios removed (lightest possible!). I have a google Spreadsheet here...

https://docs.google.com/spreadsheets/d/1jcIDqVtKRMBy5qm_kkyiOnq ...
  Topic: CJ6 community
stephen.hayne

Replies: 6
Views: 5716

PostForum: Yak-List   Posted: Sat Jun 22, 2019 10:30 am   Subject: Re: CJ6 community
I have learned so much wrenching on this bird (enjoyed every minute!), with guidance from friend Dale and everything I've read here. Took 4 years to rebuild/assemble, and I am comfortable with everyt ...
  Topic: Nose leg - NANCHANG - Shimmy issue
stephen.hayne

Replies: 8
Views: 6660

PostForum: Yak-List   Posted: Tue May 14, 2019 9:49 am   Subject: Re: Nose leg - NANCHANG - Shimmy issue
I completely agree with Walt (out of balance tires), and have been pursuing shimmy for over a year. I still get a little "bzzzttt" when touchdown at ~70knots, so I keep the nose off until 6 ...
 
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