Notices

first time gapping piston rings. need some help from the pros!!!

Thread Tools
 
Search this Thread
 
Old 09-15-2003, 04:00 PM
  #1  
Thread Starter
 
crx1856's Avatar
 
Join Date: Apr 2003
Posts: 301
Likes: 0
Received 0 Likes on 0 Posts
Default first time gapping piston rings. need some help from the pros!!!

i have a 84 mm block and pistons. the weisco pistons say gap the rings .004 per inch and a little more for performance engines. it's for a turbo motor so what should my ring gap be? any advice on how to do it? this will be my first time doing this.
Old 09-15-2003, 05:49 PM
  #2  
 
Poop111444's Avatar
 
Join Date: Mar 2003
Location: Grand Rapids, MI, USA
Posts: 616
Likes: 0
Received 0 Likes on 0 Posts
Default Re: first time gapping piston rings. need some help from the pros!!! (crx1856)

i can't help you with the gap. But do this. Use the piston and push the ring into the cylinder about an inch from the top. Measure gap with feeler gauge. Make sure in spec

Then use the piston and push it down about one inch from the bottom of where the cylinder travels up and down, and check gap. Make sure within spec.
Old 09-15-2003, 06:57 PM
  #3  
 
T-sohctec's Avatar
 
Join Date: May 2002
Location: Jinx Proof Brown Noser.
Posts: 620
Likes: 0
Received 0 Likes on 0 Posts
Default Re: first time gapping piston rings. need some help from the pros!!! (Poop111444)

When running on a turbo car your car runs "hotter" than a normal car. this causes the rings to expand more. When you are putting together a high HP motor it is reccomended to run "looser" tolerances because of the higher heat generated.

It's not super critical that you specifically run a bigger gap but if wheen you are checking your clearances and they are all coming up on the tighter side of the spec I would definately file your rings down so that theycome up on the high side of the spec.
Old 09-15-2003, 10:36 PM
  #4  
Honda-Tech Member
 
earl's Avatar
 
Join Date: Jun 2001
Location: Irvine, CA, usa
Posts: 8,120
Likes: 0
Received 1 Like on 1 Post
Default Re: first time gapping piston rings. need some help from the pros!!! (T-sohctec)

I run the ring gap on turbo motors at .006" per inch of bore for the upper and .0045" per inch of bore for the middle ring. Don't touch the oil ring.
Be sure to deburr the area after filing in the gap.
Old 09-16-2003, 03:28 AM
  #5  
Honda-Tech Member
 
hondamanwill's Avatar
 
Join Date: Apr 2001
Location: Brookfield,Wis.
Posts: 693
Likes: 0
Received 0 Likes on 0 Posts
Default

maybe this will help
http://www.theoldone.com/artic....html
Old 09-16-2003, 09:44 AM
  #6  
Honda-Tech Member
 
earl's Avatar
 
Join Date: Jun 2001
Location: Irvine, CA, usa
Posts: 8,120
Likes: 0
Received 1 Like on 1 Post
Default Re: (hondamanwill)

Larry likes his clearances very tight. The tighter you make them, the more power you will make. On the other hand, if you get the motor too hot, the ring ends will butt together and hurt the walls and rings.
A man has to know his limitations
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
civic-8442-
All Motor / Naturally Aspirated
1
05-13-2010 12:24 PM
da_rimrocka
Tech / Misc
7
11-30-2005 12:14 PM
turbodohcsi
Forced Induction
16
01-01-2005 10:22 AM
crx1856
Tech / Misc
4
09-16-2003 05:33 AM



Quick Reply: first time gapping piston rings. need some help from the pros!!!



All times are GMT -8. The time now is 02:20 AM.