DZ tip

[Ed Deaver]

One YS tip is never put it in the plane out of the box without first 
checking the valves and making sure ALL bolts are tightened.  Have seen a 
head bolt floating in the valve cover area that was never screwed in.  Have 
just gotten in the habit of going through this, as well as adjusting valves.

Ed


>From: Adam Glatt <adam.g at sasktel.net>
>Reply-To: discussion at nsrca.org
>To: discussion at nsrca.org
>Subject: DZ tip
>Date: Sun, 08 Jun 2003 17:43:04 -0600
>
>Went to test fly the new plane today with the new YS 140 DZ, but it 
>wouldn't start.  The started couldn't even flip it over, and by hand it 
>would go through phases of trying to fire every flip and not firing at all. 
>  However, the really weird thing was that it would also go through phases 
>of just flipping with no compression at all, much like the prop had come 
>loose.  We tried using the starter when it would get in this phase, and 
>after a few seconds suddenly the compression would come back.  After about 
>20 minutes of hand flipping it and not a single bit of running, we went 
>home and took it apart.
>
>You serious YS guys will probably know what is happening by now.  Here's 
>what we found: the nut that holds the intake valve to the rocker that you 
>loosen to adjust the valve clearance was totally off, loose inside the 
>valve cover area.  The phases of no compression happened because the valve 
>had been held open by the nut getting in the way.
>
>Very strange that it would come from the factory like that, but, put it 
>back on and it is working fine now.

_________________________________________________________________
Add photos to your e-mail with MSN 8. Get 2 months FREE*.  
http://join.msn.com/?page=features/featuredemail

=====================================
# To be removed from this list, send a message to 
# discussion-request at nsrca.org
# and put leave discussion on the first line of the body.
#