Notices
RC Boats General Discussion Discuss general rc boating topics here.

mac .67

Old 02-21-2009, 02:21 PM
  #1  
TEAM TWISTED NEVADA
Member
Thread Starter
 
Join Date: Mar 2007
Location: las vegas, NV
Posts: 69
Likes: 0
Received 0 Likes on 0 Posts
Default mac .67

hello guyz i just bought a mac .67. im not sure what the plug is, the plug in her now looks weird. can someone tell me what kind of plug to use in this motor. thank you
Old 02-21-2009, 02:36 PM
  #2  
Dan S
Senior Member
 
Dan S's Avatar
 
Join Date: Aug 2006
Location: Oromocto, NB, CANADA
Posts: 2,882
Likes: 0
Received 0 Likes on 0 Posts
Default RE: mac .67

OS, McCoy's, K&B will all work.

now as to which number to use will depend on what nitro% you plan on using.

Dan.
Old 02-21-2009, 10:40 PM
  #3  
danielplace
 
Join Date: Dec 2008
Location: Ocala, Fl
Posts: 689
Likes: 0
Received 0 Likes on 0 Posts
Default RE: mac .67


ORIGINAL: Dan S

OS, McCoy's, K&B will all work.

now as to which number to use will depend on what nitro% you plan on using.

Dan.
McCoy MC-9 real ones not the Dynamite brand labeled MC-9 they are lucky to get to the water. Rossi #7's also are great plugs.
There is a trick I learned long ago. That is heat the plug up then let it cool completely several times before using them. It tempers the coil and they last longer.
If you get the right head shim, nitro content and needle setting a plug should last a long time.

Daniel
Old 02-22-2009, 12:22 PM
  #4  
Ron Olson
My Feedback: (1)
 
Ron Olson's Avatar
 
Join Date: May 2002
Location: Kalamazoo, MI
Posts: 18,688
Likes: 0
Received 20 Likes on 17 Posts
Default RE: mac .67

There is another glow plug trick that the Brown's use on their engines. Pull the coil out a little before tempering it so that it sticks out away from the plug and into the chamber more.
Old 02-23-2009, 11:07 AM
  #5  
TEAM TWISTED NEVADA
Member
Thread Starter
 
Join Date: Mar 2007
Location: las vegas, NV
Posts: 69
Likes: 0
Received 0 Likes on 0 Posts
Default RE: mac .67

thank you guyz, one more thing what would the needle setting be i cant find it on the web. i guess ill start at like 3 turns out and go from their. let me know

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 -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.