YS 140L Help (Solved)

[Troy Newman]

Steal them from someone's backup motor.....make sure its all cleaned out
good...and run away with it...Then when you get new sets replace yours with
new ones and the other guys....

Also try the Ace hardware or a Lowe's

They should have them...make sure its the right ones....size and all..not
sure if they come as metric or not...but Metric will be the right ones if
they are as Metric....I have gotten them from ACE before for the Central
Hobby Axles but have not had to resort to the ACE for YS parts other than
Metric bolts.



Its a common thing after they have been apart many times....I usually will
put them on twice only..new and one more time....but that is even pushing
it...I rarely take the valves out...maybe at about 500 flights or so to
clean them up and look at the seat area....


TN
----- Original Message ----- 
From: <jed241 at msn.com>
To: <discussion at nsrca.org>
Sent: Thursday, July 31, 2003 8:58 PM
Subject: Re: YS 140L Help (Solved)


> Good News...Found the problem...
>
> Bad News...Unless someone has parts and can bring them to the Lenox
Contest,
> I will not be flying the Focus and must live with the Aresti 40 once
more...
>
> The problem was the E-Clip that holds the rocker arms on the shaft. The
> exhaust side broke in about three pieces. One piece was jammed into the
> valve cover holding the exhaust valve open...Walla, no compression. Engine
> quit. Had compression as soon as I took the valve cover off. Took me a 1/2
> hour to find all the pieces. Piston and everything else looks good.
>
> Part needed is YS0580, E-Clip Set. I will buy them off of anyone that can
> bring it to the D4 Lenox contest. If not, There is a hobby shop about
1-1/2
> hours away...In the wrong direction for the contest...
>
> Has anybody else had this happen, or am I the only one with a gremlin
> disassembling the engine from the inside?
>
> See ya,
>
> Larry Diamond
>
>
> ----- Original Message ----- 
> From: "Atwood, Mark" <atwoodm at paragon-inc.com>
> To: <discussion at nsrca.org>
> Sent: Thursday, July 31, 2003 8:40 AM
> Subject: RE: YS 140L Help
>
>
> I don't think the low nitro would cause a "sudden" change or cause the
> engine to quit as you say it did, but I agree with Eric that the YS's
enjoy
> Nitro.
>
> Another thing to check if you've only run 10 flights is the valves.  I've
> had new or rebuilt engines where the valves have tightened up after the
> first few flights and it caused sudden failure.  I like to set the
> clearences on the tight side, but if they're tooooo tight, bad things
happen
> :)
>
>
> -----Original Message-----
> From: Henderson,Eric [mailto:Eric.Henderson at gartner.com]
> Sent: Thu 7/31/2003 9:11 AM
> To: discussion at nsrca.org
> Cc:
> Subject: RE: YS 140L Help
>
> I would not run an L with less than 20%.
>
> regards,
>
> Eric.
> -----Original Message-----
> From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]On
> Behalf Of jim ivey
> Sent: Wednesday, July 30, 2003 11:07 PM
> To: discussion
> Subject: Re: YS 140L Help
>
>
> Larry
>  Make sure the clunk is not in the front of the tank. It is not Folded
> backwards. Check the plug and make sure low end idle is set correct. Also
> maybe lean it some more so that the top end won't be so loaded with fuel
> that it puts plug out when you pull it back to idle. Sometimes My 140's
will
> quit if I jerk them back to idle, if the are too rich on top end. I know
> guys my low end may not be right either.
>
> just tho'ts
> Jim Ivey
>
> ----- Original Message -----
> From: jed241 at msn.com
> Sent: Wednesday, July 30, 2003 10:52 PM
> To: NSRCA
> Subject: YS 140L Help
>
> I have a 140L in a Focus. Has been flying very well and very strong, with
> never a problem. I have about 10 flights on this barely used engine and I
> flame out in a very uncomfortable attitude. Vertical climb flamed out at
> about 25% of the vertical in a stall turn. I was settled at 3/4 throttle,
> never need full throttle flying Sportsman with this plane.
>
> Although at the down wind part of the field and pointed the wrong
direction
> when the engine quit (straight up), I was able to drag her all the way in
> and still managed to make it a very hot landing <vbg>.
>
> Anyway, What kind of things would cause a very strong running motor to
just
> quit? If anything it was a tad bit to the rich side with a exhaust trail.
>
> Fuel is WildCat 15% Nitro 18% Synth (no castor).
>
> Pretty vague question I know, just curious what this typically ends up
> being. I was planning on taking it to a contest this weekend.
>
> See ya,
>
> Larry
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