[NSRCA-discussion] YS160 Piston problems

[MARTIN, Neil]

Hi Mike,
 
I thought I was in isolation !
 
Exactly same symptoms as you've described.  Upon inspection there is a
hair-line crack on top of the piston, from underneath crack coincides
with the wrist pin boss 
 
Also refer to last picture at bottom of this page
http://f3a.sakura.ne.jp/radiocontroll/challenge-x/20060902/x20060902.htm
l
 
Cheers,
Neil M.
 
--
Neil S. Martin
Adelaide, South Australia, Australia
mailto:neil.s.martin at baesystems.com.au
 

________________________________

From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of
Zoro1024 at aol.com
Sent: Monday, 4 September 2006 11:49 AM
To: nsrca-discussion at lists.nsrca.org
Subject: [NSRCA-discussion] YS160 Piston problems


Just wondering if anyone else has experienced a problem with the piston
cracking arounf the wrist pin boss. I now have a second one with this
same problem.  It like the first one was running like gangbusters and
gradually started losing power. On tear down the cracked piston was very
evident.  Going to send this one baxck to YS with the first piston also.
Looks like the larger piston in the 160 is weak in the center.
 
 
 
Mike H.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.nsrca.org/pipermail/nsrca-discussion/attachments/20060904/b1951b52/attachment.html