Pilot 35% Yak teardown/ replacement

[dhal22]

thanks.

 

[dhal22]

Fired up the Yak today, I just let out idle for a while. Rpms started dropping and while I was making notes it appeared it was overheating. I shut the 3W down and will call/ email Gerhard tomorrow. Maybe I'll bug stang flyer.......

 

[AKNick]

He needs to be bugged... aloft lately! Hope you get it figured out!

 

[dhal22]

I think I have his cell phone number somewhere.....

 

[TonyHallo]

What does the engine baffling look like?

 

[dhal22]

There is none currently. My prior Yak (powered by same engine) was cooled by louvers around the cowling.

 

[TonyHallo]

In post 31 the cowl opening looks different from the post 52. Post 52 looks like there is an additional lip, why is that? When I look at post 52, there no much prop wash in the opening with the spinner and the lip I am referring to. Can see why it might over heat without forward motion.

 

[dhal22]

Same cowl. I see the 'additional lip ' in post 52. Must be due to the prop spinning as there is no lip. I'm going to add the aluminum louvers before i fire it up again.

 

[TonyHallo]

Well that is just crazy! Looks like a well defined lip.

 

[dhal22]

I agree.