[NSRCA-discussion] YS160 Piston problems

[Dean Pappas]

Hi Gang,
Without looking at the broken pieces it's hard to say for sure, but do we know if the guys who habitually set their needles a bit richer have any problems?
later,
Dean P.

	-----Original Message----- 
	From: nsrca-discussion-bounces at lists.nsrca.org on behalf of JShulman 
	Sent: Sun 9/3/2006 11:37 PM 
	To: NSRCA Mailing List 
	Cc: 
	Subject: Re: [NSRCA-discussion] YS160 Piston problems
	
	
	Come on John... it's not the bearings... it's the greasing of the gearbox...lol. I'm sure YS is already working on a replacement piston that will solve the problem.
	 

	Regards,
	Jason
	www.jasonshulman.com
	www.shulmanaviation.com
	www.composite-arf.com 

		-----Original Message-----
		From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of John Pavlick
		Sent: Sunday, September 03, 2006 11:31 PM
		To: NSRCA Mailing List
		Subject: Re: [NSRCA-discussion] YS160 Piston problems
		
		
		Nice. Well, the bearings in my OS 160 are still fine... Sorry guys. You knew someone had to do that. Seriously, how does the pin go into the piston? Is it held with clips? I wonder if the fit is too tight. Full floating pins (pins that ARE held with clips) should be fairly loose in the piston and the rod. Maybe it's just a fit problem and not a weakness. If anybody has a new motor it might be worth taking it apart to see if the pin fit is really tight.
		 
		John Pavlick
		http://www.idseng.com <http://www.idseng.com/> 
		  

		 
		 
		 -----Original Message-----
		From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of JonLowe at aol.com
		Sent: Sunday, September 03, 2006 11:17 PM
		To: nsrca-discussion at lists.nsrca.org
		Subject: Re: [NSRCA-discussion] YS160 Piston problems
		
		

			In a message dated 9/3/2006 9:19:24 PM Central Daylight Time, Zoro1024 at aol.com writes:

				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.

			 
			Gary Courtney here in Huntsville, AL  just told me tonite that his piston had done this and he discovered it today.
			 
			Jon Lowe
			

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