Ys120 sr went pop and seized? - HeliFreak
Fun, Learning, Friendship and Mutual Respect START  HERE


Unregistered
Go Back   HeliFreak > R/C Helicopter Support > Engines and Mufflers


Engines and Mufflers Having problems or need advice on Engines or Mufflers?


Reply
 
LinkBack Thread Tools Display Modes
Old 11-17-2012, 05:49 PM   #1 (permalink)
Registered Users
 

Join Date: May 2010
Location: Rapid City,SD
Default Ys120 sr went pop and seized?

I fired the ys120 sr up today for the first time today and I think I fried te motor. Set the mid and high to factory 2.5 out and firsed it up. The engine transitioned well so I decided to hover it. At about 5 seconds into a hover it made a single pop sound more like a ting. Anyone know were I can send it to see if I can have it repaired.
Franke21m is offline        Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 11-18-2012, 12:58 AM   #2 (permalink)
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2010
Location: Rapid City,SD
Default

Just a little update, there is a monster hole in the piston. I dont see any pitting on the head but there was about 2 to 3 oz run through this engine is all. It was running good with lots of smoke and out of nowhere she popped. Anyway I am still trying to find a place to send it in. If you can give me a Its already packed and ready to ship. Thanks..
Attached Thumbnails
Click image for larger version

Name:	IMAG0359.jpg
Views:	158
Size:	35.7 KB
ID:	367057   Click image for larger version

Name:	IMAG0360.jpg
Views:	230
Size:	30.3 KB
ID:	367058   Click image for larger version

Name:	IMAG0361.jpg
Views:	125
Size:	69.8 KB
ID:	367059   Click image for larger version

Name:	IMAG0362.jpg
Views:	113
Size:	66.4 KB
ID:	367060  
Franke21m is offline        Reply With Quote Quick reply to this message
Old 11-18-2012, 12:51 PM   #3 (permalink)
Registered Users
 
Posts: 556
 

Join Date: Feb 2008
Location: Coarsegold, CA
Default

PM Sent
exfokkerflyer is offline        Reply With Quote Quick reply to this message
Old 12-12-2012, 06:53 PM   #4 (permalink)
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2010
Location: Rapid City,SD
Default

Got the engine back from ys and have to say the customer service there is top notch. Very happy with them. Rebuilt engine is installed patiently waiting on the weather.
Franke21m is offline        Reply With Quote Quick reply to this message
Old 12-13-2012, 06:47 AM   #5 (permalink)
Registered Users
 
Posts: 2,337
 

Join Date: Feb 2011
Location: Gold Coast, Australia
Default

What was the diagnosis from YS?
thefrog is offline        Reply With Quote Quick reply to this message
Old 12-13-2012, 08:15 AM   #6 (permalink)
Registered Users
 

Join Date: Nov 2004
Location: Franksville, WI
Default

Quote:
Originally Posted by thefrog View Post
What was the diagnosis from YS?
....hole in piston.

;-)

-MIke
__________________
Team QuickUK Pilot
Team Heliproz
MikeSherman is online now        Reply With Quote Quick reply to this message
Old 12-13-2012, 12:25 PM   #7 (permalink)
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2010
Location: Rapid City,SD
Default

Quote:
Originally Posted by thefrog View Post
What was the diagnosis from YS?
They replaced the piston and liner after they cleaned it up. They bench test the engine and all was well.

The engine went lean obviously, and there is alot of things still in the air. YS took care of me and by the way they handled it, they were not putting the blame on me nor did I ever once blame them. I was 100% honest with them and they seemed to appreciate that. Chances are, I should have been able to avoid it. I will take baby steps with this engine vs. the approach I ve taken with all the other YS engines I have owned. I was at the factory recommended 2.5 out on both screws and this happened. When I got the engine back, The mid was at 2 turns out (Were I assume the engine was bench run) and the high needle was pulled out for shipping. I installed a brand new check valve and have ordered a couple #4 enya glow plugs. It was rocommended not to use the O.S #8 plug by Y.S. Fingers crossed.
Franke21m is offline        Reply With Quote Quick reply to this message
Old 12-16-2012, 12:57 PM   #8 (permalink)
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2010
Location: Rapid City,SD
Default

I run the newly rebuilt 120 for the first time yesterday and have found the check valve was deffinately faulty. Replaced with a brand new check valve and it is running very very good. Did a little leaning (which I was not able to do when engine was damaged) and everything was running great. I started off at 2.5 on mid and high and turned the mid in about a quarter turn and was able to do a little hovering.
Franke21m is offline        Reply With Quote Quick reply to this message
Old 12-22-2012, 04:24 AM   #9 (permalink)
 

Join Date: Apr 2006
Location: USA
Default

What fuel are you using and what percentage of nitro? Thanks.
Bobs is offline        Reply With Quote Quick reply to this message
Old 12-22-2012, 09:55 AM   #10 (permalink)
Registered Users
Thread Starter Thread Starter
 

Join Date: May 2010
Location: Rapid City,SD
Default

I am using the Byrons Rotor Rage 15% nitro. Got a case from A Main Hobbies. Supposed to be a special blend for the YS120.
Franke21m is offline        Reply With Quote Quick reply to this message
Reply




Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the HeliFreak forums, you must first register.
Please enter your desired user name, your REAL and WORKING email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself. Use a real email address or you will not be granted access to the site. Thank you.
Email Address:
Location
Where do you live? ie: Country, State, City or General Geographic Location please.
Name and Lastname
Enter name and last name here. (This information is not shown to the general public. Optional)
Helicopter #1
Enter Helicopter #1 type and equipment.
Insurance
Please select your insurance company (Optional)
Helicopter #2
Enter Helicopter #2 type and equipment.
Helicopter #3
Enter Helicopter #3 type and equipment.
Helicopter #4
Enter Helicopter #4 type and equipment.

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On




Copyright © VerticalScope Inc. All rights reserved.
 

SEO by vBSEO 3.6.1