<div>Sunspots. We had six YS deadsticks between four pilots and two electrics deadstick today- and one pilot overheated and had to leave. Cooling/ ducting around the engine helps. See post in RCU about ducting around the YS for enclosed cowlings</div>
<div> </div>
<div>Don<br>
<br>
<br>
-----Original Message-----<br>
From: Joe Dunnaway <dunnaway@hbcomm.net><br>
To: General pattern discussion <nsrca-discussion@lists.nsrca.org><br>
Sent: Sun, Aug 16, 2009 10:15 pm<br>
Subject: Re: [NSRCA-discussion] Some YS questions for the list<br>
<br>
</div>
<div id=AOLMsgPart_1_3305ab89-ca7a-4158-8402-ec19c9b7ce89>Mike,<br>
I like the 18.1X10 PN (Pattern Narrow) on the 160DZ. It will turn around 8300 rpm and has fantastic downline braking. I'm running close to 2 turns out needle but that will depend on how the regulator is adjusted. I'm running Cool Power Heli 30%. It sounds like you may be running a little lean. Was the engine hot after it died?<br>
<br>
Joe Dunnaway<br>
.<br>
Michael Cohen wrote:
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I have been running my 160DZ with a 4 blade prop but needed to switch to a 2 bladed prop since the 4 blade is not longer with this world. It was VERY hot and humid today in Michigan, and the 18.1X10 2 blade seemed to be loading the 160DZ down a tad. It was turing about 7700 the other night when I tested the engine/prop combo. After my first flight today, the engine would audibly sag and then die suddenly when running at full power for more than 10 to 15 seconds. So, my questions are:<br>
<br>
What props are other people running on their 160DZ's?<br>
What RPM are you turning?<br>
How far out are you on the main needle?<br>
Fuel?<br>
Of course, any suggestions about anything to check would be appreciated.<br>
<br>
FYI, for me, I am running at 2.25 turns out, 7700 RPM and using 30%DZ blend PowerMaster. Turning in the needle any further will cause the engine to sag audibly.<br>
<br>
My second YS topic has to do with the small bearing that supports the cam. I tried to heat the case slightly and pop it out with a light tap on the case. I tried to pull it out with a modified tool with a small lip on it, but it is not budging. Looks like what I really need would be a reversed small gear puller, but I doubt the local hardware stores carry that. So, any suggestions about how to get that little bearing out?<br>
<br>
Thanks all<br>
<br>
Mike Cohen<br>
<br>
<br>
<br>
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