Notices
Gas Engines Questions or comments about gas engines can be posted here

CM6 Insert Bushing

Old 10-04-2011, 11:00 AM
  #1  
jadec241
Thread Starter
My Feedback: (29)
 
Join Date: Nov 2004
Location: palm coast, FL
Posts: 213
Likes: 0
Received 0 Likes on 0 Posts
Default CM6 Insert Bushing

I was running my 17CC gas engine at about 1500 RPM when the plug blew out. Do they make a insert bushing like they do for a 14MMm plug. Any help would be appreciated.
Old 10-04-2011, 11:50 AM
  #2  
jedijody
Senior Member
My Feedback: (1)
 
jedijody's Avatar
 
Join Date: Mar 2005
Posts: 2,812
Likes: 0
Received 2 Likes on 2 Posts
Default RE: CM6 Insert Bushing



What plug does the engine take that blew out?

Old 10-04-2011, 12:00 PM
  #3  
jadec241
Thread Starter
My Feedback: (29)
 
Join Date: Nov 2004
Location: palm coast, FL
Posts: 213
Likes: 0
Received 0 Likes on 0 Posts
Default RE: CM6 Insert Bushing


The engine is a 17CC sv gas engine. The spark plug blew out. The threads on the head are striped. I checked with the local auto parts stores but they don't have a insert small enough. I am thinking that if I coulgd get the head welded I might be able to drill the head & retap it.
Old 10-04-2011, 12:47 PM
  #4  
Antique
Senior Member
My Feedback: (4)
 
Antique's Avatar
 
Join Date: Jul 2002
Location: Somewhere, DC
Posts: 9,825
Likes: 0
Received 0 Likes on 0 Posts
Default RE: CM6 Insert Bushing

Cheaper to get a new head
Old 10-04-2011, 01:04 PM
  #5  
DaleD
 
Join Date: Jul 2009
Location: North Lauderdale, FL
Posts: 285
Received 0 Likes on 0 Posts
Default RE: CM6 Insert Bushing

A helicoil insert should fix your problem. Jodyinstalled a helicoil insertona G20 head for my good friend KarolH sometime ago. Engine runs like a dream ever since we got it back. Have a look at the attached video to understand the process of installing the helicoil insert. http://www.youtube.com/watch?v=RFYa6sjhh_E

DaleD

Old 10-04-2011, 02:34 PM
  #6  
jadec241
Thread Starter
My Feedback: (29)
 
Join Date: Nov 2004
Location: palm coast, FL
Posts: 213
Likes: 0
Received 0 Likes on 0 Posts
Default RE: CM6 Insert Bushing


Looked up the heli-coil web-site. I have to know the thread size of the plug. Paragon & others say it would be cheaper to replace the head. Am trying to get a price for it.
Old 10-04-2011, 03:01 PM
  #7  
spaceworm
 
Join Date: Mar 2009
Location: Guilford, CT
Posts: 3,950
Received 2 Likes on 2 Posts
Default RE: CM6 Insert Bushing

Check with Clarence Lee to get a helicoil put in.

Sincerely, Richard
Old 10-04-2011, 03:50 PM
  #8  
jadec241
Thread Starter
My Feedback: (29)
 
Join Date: Nov 2004
Location: palm coast, FL
Posts: 213
Likes: 0
Received 0 Likes on 0 Posts
Default RE: CM6 Insert Bushing


Do you have his address or how to get in touch with him.
Old 10-04-2011, 04:22 PM
  #9  
spaceworm
 
Join Date: Mar 2009
Location: Guilford, CT
Posts: 3,950
Received 2 Likes on 2 Posts
Default RE: CM6 Insert Bushing

From a search results thread:

"Clarence Lee can fix the threads with a heli-coil for about $20. His address is is the classifieds of Model Aviation. You only need to send the head to him. His business is "Lee Custom Engines" 1-818-352-3766."

Good luck.

Sincerely, Richard

"
Old 10-04-2011, 05:15 PM
  #10  
jedijody
Senior Member
My Feedback: (1)
 
jedijody's Avatar
 
Join Date: Mar 2005
Posts: 2,812
Likes: 0
Received 2 Likes on 2 Posts
Default RE: CM6 Insert Bushing

If it's a CM-6 plug, the thread is M10 x 1.0
Old 10-04-2011, 06:19 PM
  #11  
jadec241
Thread Starter
My Feedback: (29)
 
Join Date: Nov 2004
Location: palm coast, FL
Posts: 213
Likes: 0
Received 0 Likes on 0 Posts
Default RE: CM6 Insert Bushing


Thanks Richard, will call tomorrow.
Old 10-05-2011, 03:51 AM
  #12  
Diablo-RCU
Senior Member
My Feedback: (1)
 
Join Date: Dec 2001
Location: Hammond, IN
Posts: 3,262
Likes: 0
Received 0 Likes on 0 Posts
Default RE: CM6 Insert Bushing

You can also get an insert at RCextremepower.com

Check out the insert on the ignition page below.
You'll also need a 14mm tap and the right drill bit.

http://www.rcextremepower.net/ignitions.html
Old 10-05-2011, 08:42 AM
  #13  
jadec241
Thread Starter
My Feedback: (29)
 
Join Date: Nov 2004
Location: palm coast, FL
Posts: 213
Likes: 0
Received 0 Likes on 0 Posts
Default RE: CM6 Insert Bushing


Called Clarence Lee in Ca. Sent him the head. He will install the heli-coil for $15.00 plus ship it back. If I went with the adapter in RCX

I would have to get a drill bit a 14MM tap plus the adapter. I think sending it out to have him do it was the safest & cheapest way.

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 or Share My Personal Information -

Copyright © 2023 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.