[NSRCA-discussion] Some YS questions for the list

[Bob Kane]

I'm still running this combination, Powermaster 30% DZ blend.

I don't know if you noticed my last flight last weekend, but I blew the header.  First time I have had one fail that way so the motor was probably a little lean, raising the exhaust temps.  I richened the needle a couple of clicks.

 Bob Kane
getterflash at yahoo.com




________________________________
From: Ihncheol Park <pnahobbies at sbcglobal.net>
To: General pattern discussion <nsrca-discussion at lists.nsrca.org>
Sent: Sunday, August 16, 2009 8:34:39 PM
Subject: Re: [NSRCA-discussion] Some YS questions for the list

 
Mike,
 
I’ve found two postings on 160DZ.
 
Adrian Wong wrote: I have been using a 17x12w on Cool Power
30% heli with good results
 
Bob Kane wrote: On a broken in 160DZ, my pump is out
(leaner) about 1/2-3/4 turn from flush, main needle should like to be 1-1/2 to
1-3/4 turns out.  I use the 18.1X10, a very good combination.
 
 
For the Cam cover bearing, I bent 1/16” music wire to “U”
like shape and pull on both sides.  If it still doesn pull, heat the
casing a little bit.
 
Ihncheol


 
From:nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Michael
Cohen
Sent: Sunday, August 16, 2009 7:04 PM
To: nsrca-discussion at lists.nsrca.org
Subject: [NSRCA-discussion] Some YS questions for the list
 
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:
 
What props are other people running on their 160DZ's?
What RPM are you turning?
How far out are you on the main needle?
Fuel?
Of course, any suggestions about anything to check would be appreciated.
 
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.
 
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?
 
Thanks all
 
Mike Cohen
 
 

________________________________
 
Windows
Live: Keep your friends up to date with what you do online. Find out more.


      
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.nsrca.org/pipermail/nsrca-discussion/attachments/20090817/0ee37dcf/attachment.html>