R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Nitro On-Road

Reply
 
Thread Tools Search this Thread
Old 11-16-2007, 02:50 PM   #1
Tech Elite
 
lil-bump's Avatar
 
Join Date: Aug 2006
Location: The Cold Great Lakes
Posts: 2,963
Trader Rating: 83 (100%+)
Default .12 engine pipe to header gasket???

Can I use a .21 rear engine gasket for a gasket between the pipe header on a .12 engine?
lil-bump is offline   Reply With Quote
Old 11-16-2007, 03:13 PM   #2
Tech Elite
 
Derby Bros Racing's Avatar
 
Join Date: Nov 2003
Location: Arizona
Posts: 3,209
Trader Rating: 7 (100%+)
Default

Yes. Newer pipes use .21 size (big bore) gasket. Some old school one-piece pipes use .12 size .
Derby Bros Racing is offline   Reply With Quote
Old 11-16-2007, 04:29 PM   #3
Tech Fanatic
 
Nexus Racing's Avatar
R/C Tech Elite Subscriber
 
Join Date: May 2005
Posts: 848
Default

I've found that sometimes when you're using a gasket from a different mfg than the pipe, you'll need to trim the "lip" inside the .21 gasket with an x-acto to make the pipe and header still able to slide together.
__________________
NEXUSRACING.com
Nexus Racing is offline   Reply With Quote
Old 11-16-2007, 04:37 PM   #4
Tech Champion
 
Team Kamikaze's Avatar
R/C Tech Elite Subscriber
 
Join Date: Apr 2006
Location: 我的名字是沈先生。我是中国人, 居住美国
Posts: 8,868
Trader Rating: 3 (100%+)
Default

Quote:
Originally Posted by Nexus Racing View Post
I've found that sometimes when you're using a gasket from a different mfg than the pipe, you'll need to trim the "lip" inside the .21 gasket with an x-acto to make the pipe and header still able to slide together.
You can also do this: Instead of trimming the inside lip of the seal/gasket, just use the PICCO .21 exhaust seal/gasket, the Picco seal/gasket does not have a lip on the inner side.
__________________
Home of the Kamikaze Driver's Development Program = guaranteed podium finish
Kamikaze Toys and Hobbies Inc.
Follow us here on Facebook!
Team Kamikaze is offline   Reply With Quote
Old 11-16-2007, 08:55 PM   #5
Tech Initiate
 
Garaski's Avatar
 
Join Date: Aug 2007
Posts: 39
Default

totally different topic but an engine question(s)..... when do you add head shims ? how many do you add ? what do you guys look for ?
Garaski is offline   Reply With Quote
Old 11-16-2007, 09:01 PM   #6
Tech Champion
 
Team Kamikaze's Avatar
R/C Tech Elite Subscriber
 
Join Date: Apr 2006
Location: 我的名字是沈先生。我是中国人, 居住美国
Posts: 8,868
Trader Rating: 3 (100%+)
Default

Quote:
Originally Posted by Garaski View Post
totally different topic but an engine question(s)..... when do you add head shims ? how many do you add ? what do you guys look for ?
It depends on what engine you are running the nitro percentage you use and the altitude.
__________________
Home of the Kamikaze Driver's Development Program = guaranteed podium finish
Kamikaze Toys and Hobbies Inc.
Follow us here on Facebook!
Team Kamikaze is offline   Reply With Quote
Old 11-16-2007, 09:24 PM   #7
Tech Elite
 
lil-bump's Avatar
 
Join Date: Aug 2006
Location: The Cold Great Lakes
Posts: 2,963
Trader Rating: 83 (100%+)
Default

Quote:
Originally Posted by Garaski View Post
nova engine..... 25% nitro ...... #6 - #7 plug ..... what should I look for inside the engine to make me want to add headshims and how many should I use ? thanks.
I can comment on only .12 size engines. You want to check the top of the piston and burn room for detenation. It will look like the top of your piston has been sandblasted. This is bad you need to add shims. do a search in the nitro engine forum there is a ton of information on this subject.
lil-bump is offline   Reply With Quote
Old 11-16-2007, 09:25 PM   #8
Tech Initiate
 
Garaski's Avatar
 
Join Date: Aug 2007
Posts: 39
Default

nova engine..... 25% nitro ...... #6 - #7 plug ..... what should I look for inside the engine to make me want to add headshims and how many should I use ? thanks.
Garaski is offline   Reply With Quote
Old 11-16-2007, 09:26 PM   #9
Tech Elite
 
lil-bump's Avatar
 
Join Date: Aug 2006
Location: The Cold Great Lakes
Posts: 2,963
Trader Rating: 83 (100%+)
Default

Quote:
Originally Posted by Garaski View Post
totally different topic but an engine question(s)..... when do you add head shims ? how many do you add ? what do you guys look for ?

For 20% I shim around .45mm, 25% around .55mm 30% around .65mm. Like Team K said It depends on what % nitro you use
lil-bump is offline   Reply With Quote
Old 11-17-2007, 10:16 AM   #10
Tech Elite
 
lil-bump's Avatar
 
Join Date: Aug 2006
Location: The Cold Great Lakes
Posts: 2,963
Trader Rating: 83 (100%+)
Default

Thanks for the replies
lil-bump is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
jp1 pipe, header, gasket dido41 R/C Items: Wanted to Buy 3 05-07-2006 01:47 PM
RD Logics Header Gasket for OS 12RE Ducati-Rider Onroad Nitro Engine Zone 1 09-13-2005 07:14 PM
Header and Gasket doesn't fit? DOMOisCOOL Onroad Nitro Engine Zone 4 04-18-2004 04:29 PM
Engine Break-in and a leaking exhaust pipe gasket GP40X Rookie Zone 12 02-26-2003 06:02 AM
.15 Pipe & header on a .12 Engine??? Mr MTX Nitro On-Road 1 03-03-2002 01:05 PM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 01:04 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net