[NSRCA-discussion] YS 160 question
Bob Lavey
bob.lavey at cox.net
Mon Mar 1 09:07:03 AKST 2010
Thats a great idea, Glen. Thanks.
> -----Original Message-----
> From: nsrca-discussion-bounces at lists.nsrca.org
> [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf
> Of Glen Watson
> Sent: Monday, March 01, 2010 11:31 AM
> To: 'General pattern discussion'
> Subject: Re: [NSRCA-discussion] YS 160 question
>
> Hello Bob,
>
> Agree the check valve being able to rotate is suspect.
> However why not call Richard Verano at YS Parts and Service
> (775) 267-9252 before replacing parts to validate your
> running symptoms are relative to this part being able to rotate.
>
> ~Glen
>
>
>
> -----Original Message-----
> From: nsrca-discussion-bounces at lists.nsrca.org
> [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf
> Of Bob Lavey
> Sent: Monday, March 01, 2010 11:02 AM
> To: 'General pattern discussion'
> Subject: Re: [NSRCA-discussion] YS 160 question
>
> Thanks, Bob. I'll replace that and see if it helps.
>
> > -----Original Message-----
> > From: nsrca-discussion-bounces at lists.nsrca.org
> > [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Bob
> > Kane
> > Sent: Monday, March 01, 2010 10:41 AM
> > To: General pattern discussion
> > Subject: Re: [NSRCA-discussion] YS 160 question
> >
> > The check valve should not rotate easily, that sounds suspect.
> >
> >
> > Bob Kane
> > getterflash at yahoo.com
> >
> >
> > --- On Mon, 3/1/10, Bob Lavey <rjlavey at hotmail.com> wrote:
> >
> > > From: Bob Lavey <rjlavey at hotmail.com>
> > > Subject: [NSRCA-discussion] YS 160 question
> > > To: "'General pattern discussion'"
> > <nsrca-discussion at lists.nsrca.org>
> > > Date: Monday, March 1, 2010, 7:16 AM
> > >
> > >
> > >
> > >
> > >
> > > YS 160 question
> > >
> > >
> > >
> > >
> > > Greetings,
> > >
> > >
> > > I have a question about the
> > > YS 160 in my Abbra. I've got about two dozen flights on the
> > > plane/engine, since I bought it (used).
> > > It's run great up until yesterday, when I barely got one
> > flight on it.
> > > I got as far as the square loop in the intermediate
> sequence (yeah,
> > > first maneuver), and it sputtered and choked at the top of the
> > > vertical line and across the inverted horizontal top line.
> > I rolled
> > > it over, and it seemed okay, so I tried again. Same
> > result. I got it
> > > back down without incident and ran the engine on the bench,
> > and it was
> > > lean in the mid-range and top end. It got very hot during
> > the short
> > > time I ran it on the bench, and it seemed to get leaner the
> > longer it
> > > ran. I tried the high-end needle and small rich
> adjustment on the
> > > pump, but neither helped. It ran great last weekend, so I
> > don't think
> > > it was a mixture setting. I then started checking the fuel
> > lines and
> > > vent lines, but they seemed okay. Then I noticed the check
> > valve on
> > > the head would rotate. The one on my other 160 doesn't
> rotate, and
> > > since I thought those were a press-fit, it doesn't seem
> > like it ought
> > > to rotate. I gave it a gentle tug, and it didn't come out of the
> > > head, but it rotates pretty freely.
> > >
> > > Is that a bad thing?
> > > Or should I continue looking for an air leak in other
> places? Any
> > > other suggestions?
> > >
> > >
> > > Does that check valve just
> > > pull off, and I can I replace it by just pushing another
> > one on? Can
> > > it be that easy? :)
> > >
> > >
> > >
> > > Thanks!
> > >
> > > Bob
> > >
> > >
> > >
> > >
> > > -----Inline Attachment Follows-----
> > >
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