Go Back  RCU Forums > RC Airplanes > Beginners
 four star 40 engine mount problem >

four star 40 engine mount problem

Community
Search
Notices
Beginners Beginners in RC start here for help.

four star 40 engine mount problem

Thread Tools
 
Search this Thread
 
Old 03-30-2006 | 06:44 PM
  #1  
Thread Starter
Senior Member
 
Joined: Oct 2004
Posts: 172
Likes: 0
Received 0 Likes on 0 Posts
From: Yorba Linda, CA
Default four star 40 engine mount problem

hi, i have a four star 40 and i am having some trouble with the engine mount. The orginall one that they give with their arf broke on me so i bought 2 new ones from tower.They are hays .30-.50 engine mounts. its not th enew engine mount do not fit my engine but the firewall holes do not match up. So first of all should i just drill holes for the new engine mount and second is it possible to put the engine to low/high etc... how should i put the new engine mount in?
Old 03-30-2006 | 07:30 PM
  #2  
Thread Starter
Senior Member
 
Joined: Oct 2004
Posts: 172
Likes: 0
Received 0 Likes on 0 Posts
From: Yorba Linda, CA
Default RE: four star 40 engine mount problem

any one know wht to do?
Old 03-30-2006 | 09:28 PM
  #3  
LuckyArmpit's Avatar
Senior Member
 
Joined: Aug 2002
Posts: 868
Likes: 0
Received 0 Likes on 0 Posts
From: West Middlesex, PA
Default RE: four star 40 engine mount problem

For centering, you can get fairly close if you center your new mount in accordance with the already drilled holes. If you have to drill new ones, do it. I drilled new ones on my Sig Kougar and it doesn't seem to have affected anything. Also, some arfs and other kits give you measly wood screws to mount engine and even the mount itself. I use a screw and nut and lockwashers on both ends.
Same with mounting engine to mount. I use lockwashers on both sides and I also use a nylon nuts. Keeps your engine tight to the mount and there is less tendency to vibrate the nuts loose.

Dave...
Old 03-31-2006 | 12:23 PM
  #4  
Senior Member
 
Joined: Jul 2004
Posts: 170
Likes: 0
Received 0 Likes on 0 Posts
From: Caldwell, TX
Default RE: four star 40 engine mount problem

Order new mounts from Sig. They're cheap, and the firewall holes will line up for you. Redrill the engine holes, and you got it. Glen
Old 03-31-2006 | 12:37 PM
  #5  
 
Joined: Nov 2004
Posts: 11,701
Likes: 0
Received 1 Like on 1 Post
From: Memphis, TN
Default RE: four star 40 engine mount problem

There may be alignment marks on the firewall (vertical and horizontal). Most engine mounts also have alignment marks. align the 2 together and drill holes. If no marks on firewall check the orig mount and see if it has marks that you can carry over onto the firewall.

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
Trackbacks are Off
Pingbacks are Off
Refbacks are On



Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.