Notices
S.P.A.D. Aircraft - Coroplast design Discuss the growing area of S.P.A.D.S. (Simple Plastic Airplane Designs). Coroplast type aircraft, pizza box planes, etc..

engine heeeeeeeeeelllllp

Old 02-28-2004, 07:01 PM
  #1  
red_guy
Senior Member
Thread Starter
 
Join Date: Oct 2003
Location: Cluj-Napoca, ROMANIA
Posts: 138
Likes: 0
Received 0 Likes on 0 Posts
Default engine heeeeeeeeeelllllp

hello guys,

after doing some mods on my qhor (put a 1/2" aluminum engine mount and 1oz of lead on the nose to make it nose heavy) I went today to catch the last snow on my flying field.

engine started ok, a little aileron and elevator trim and it was hands off. flew rock steady, like a trainer. i know it sounds stupid for a qhor to be stable but mine IT IS

anyway after half a tank the power dropped and nomatter what i did i couldnt put power in the engine. it crashed resulting in a bent fuse (need to find a hammer in the garage)

the tank was half full when it crashed.

my question is why the engile stalled??????????

if it matters when transporting the plane in my car (nose down) on the floor i found some fuel, not much. since the engine was empty it only came from the tank which was quite full.

if the tank has just a tiny leak on the stopper is it possible that when the fuel level in the tank gets bellow the stopper the pressure in the tank to drop that bad??

the engine is a MAGNUM .28XL BB i got lust year in august. a good engine. pretty hard to start but i like it so far. this never happened before


Red GUY

PS. the pic is from the last time i went flying. not today. sorry, today no pics
Attached Thumbnails Click image for larger version

Name:	Hf99681.jpg
Views:	21
Size:	47.6 KB
ID:	106019  
Old 02-28-2004, 07:19 PM
  #2  
JuniorPilot
Senior Member
 
JuniorPilot's Avatar
 
Join Date: Mar 2003
Location: Toronto, ON, CANADA
Posts: 397
Likes: 0
Received 0 Likes on 0 Posts
Default RE: engine heeeeeeeeeelllllp

check the servo and the throttle arm on the engine make sure it's not loose and that the servo is working ok
Old 02-28-2004, 07:23 PM
  #3  
ChrisSpad
Senior Member
 
Join Date: Apr 2002
Location: Cordova, TN,
Posts: 1,528
Likes: 0
Received 0 Likes on 0 Posts
Default RE: engine heeeeeeeeeelllllp

the low end needle on mag's have a bad tendency to back their way out. Sometimes releiving themselves completely from the engine. That could be the problem, as well as a hole in a fuel line somewhere, or an airleak somewhere. They also tend to vibrate the carb screws out from time to time, are they both still there?
Old 03-01-2004, 12:18 PM
  #4  
mnrcaerobat
Senior Member
My Feedback: (197)
 
Join Date: Oct 2003
Location: Minnetonka, MN
Posts: 1,249
Likes: 0
Received 0 Likes on 0 Posts
Default RE: engine heeeeeeeeeelllllp

Also check your tank clunk and make sure it is free.
Old 03-01-2004, 02:18 PM
  #5  
red_guy
Senior Member
Thread Starter
 
Join Date: Oct 2003
Location: Cluj-Napoca, ROMANIA
Posts: 138
Likes: 0
Received 0 Likes on 0 Posts
Default RE: engine heeeeeeeeeelllllp

the clunk was in front of the tank, but i think thats because of the crash shock. anyway, i found out that the fuel line inside the tank was cracked [:@], meaning i got bubbels in the line. i think thats the reason of the power loss

thanx guys
reg guy

Posting Rules
You may not post new threads
You may not 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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.