Tech / Misc Tech topics that don't seem to go elsewhere.
Sponsored by:
Sponsored by:

installing new pistons in bore TROUBLES

Thread Tools
 
Search this Thread
 
Old Nov 5, 2012 | 02:58 PM
  #1  
dem0nk1d's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Aug 2005
Posts: 2,182
Likes: 0
From: SD Thief KiLLER, ca, thief killer
Default installing new pistons in bore TROUBLES

so i was told that the ring compressor plier style are one of the best ring compressors to use besides the tappered bore style. major issue is i am having is the first oil ring just doesn't want to get past the top of the bore. i've snapped two rings so far. having a hell of a time.

tool / c-band is totally level with the surface. im out of ideas and may head to the machine shop tomorrow to get this taken care of if i have to...

tool and bore is lubed up with wd40
Reply
Old Nov 5, 2012 | 04:55 PM
  #2  
Muckman's Avatar
Moderator in Chief
iTrader: (2)
 
Joined: Sep 2001
Posts: 9,506
Likes: 7
From: Buffalo, NY
Default Re: installing new pistons in bore TROUBLES

You need to make sure there is no gap between the compressor and the sleeve and make sure its as tight as you can get it.
It needs to be an exact extention of the bore its going into.

I have better luck with this type.
Reply
Old Nov 5, 2012 | 05:30 PM
  #3  
dem0nk1d's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Aug 2005
Posts: 2,182
Likes: 0
From: SD Thief KiLLER, ca, thief killer
Default Re: installing new pistons in bore TROUBLES

tried that one first and caught a ring.
Reply
Old Nov 5, 2012 | 07:12 PM
  #4  
Muckman's Avatar
Moderator in Chief
iTrader: (2)
 
Joined: Sep 2001
Posts: 9,506
Likes: 7
From: Buffalo, NY
Default Re: installing new pistons in bore TROUBLES

Youre not making it flush to the sleeve then. There shouldnt even be a gap to catch the ring. Take a mallet and tap on the top of the spring compressor to make sure its flat and flush to the sleeve. I make the spring compressor as tight as I can with the allen wrench and I coat the sides with motor oil. I tap the piston down using my mallet handle but I pad the piston dome with a rag. You shouldnt ever have to hammer on the piston. Remember how much force you used when the rings broke? Thats too much. Back off and reset.
Reply
Old Nov 6, 2012 | 07:40 PM
  #5  
mibayaua's Avatar
Honda-Tech Member
 
Joined: Feb 2011
Posts: 66
Likes: 0
Default Re: installing new pistons in bore TROUBLES

Originally Posted by dem0nk1d
so i was told that the ring compressor plier style are one of the best ring compressors to use besides the tappered bore style. major issue is i am having is the first oil ring just doesn't want to get past the top of the bore. i've snapped two rings so far. having a hell of a time.

tool / c-band is totally level with the surface. im out of ideas and may head to the machine shop tomorrow to get this taken care of if i have to...

tool and bore is lubed up with wd40
when u installed the new rings, did you notice a groove on the outside of the top ring? did the groove face up or down when u installed it
Reply
Old Nov 9, 2012 | 08:16 AM
  #6  
jazzRS's Avatar
Honda-Tech Member
 
Joined: Mar 2012
Posts: 153
Likes: 0
Default Re: installing new pistons in bore TROUBLES

use the style compressor shown above, when your piston is clamped down, put the tip of the piston in the cylinder and press the compressor against the block. take a rubber mallet and tap the compressor down around the edges so it is right agains the block. take the wooden end of the rubber mallet and tap your piston down. its always helpful to use oil on the piston and inside of the ring compressor and cylinder walls to help things slide. good luck
Reply
Old Nov 10, 2012 | 08:53 AM
  #7  
a1320addict's Avatar
Honda-Tech Member
iTrader: (1)
 
Joined: Sep 2004
Posts: 9,639
Likes: 0
From: NJ
Default Re: installing new pistons in bore TROUBLES

Get a tapered style from Wiseco, they are cheap and you'll never look back.
Reply
Old Nov 10, 2012 | 09:33 AM
  #8  
fcm's Avatar
fcm
Old Fart
 
Joined: May 2004
Posts: 26,173
Likes: 18
From: kelowna, bc, canada
Default Re: installing new pistons in bore TROUBLES

Did you gap the rings properly? 94
Reply
Old Nov 10, 2012 | 10:27 AM
  #9  
omgwtf's Avatar
Honda-Tech Member
 
Joined: Sep 2012
Posts: 24
Likes: 0
Default Re: installing new pistons in bore TROUBLES

I use 3 Sharp Flat, and a buddy to help and it goes in without a trouble. And people say it's dumb to do that but I know what i'm doing.
Reply
Old Nov 12, 2012 | 11:30 AM
  #10  
v8eatrr's Avatar
Honda-Tech Member
 
Joined: Aug 2012
Posts: 110
Likes: 0
Default Re: installing new pistons in bore TROUBLES

I used the tool that was shown in the picture and I actually stand on top of the ring compressor so it sits flush and the rings don't pop out
You have just enought room to fit the handle of a hammer in to push the pistons down
Haven't ever broken a ring
Reply
Old Nov 12, 2012 | 11:30 AM
  #11  
v8eatrr's Avatar
Honda-Tech Member
 
Joined: Aug 2012
Posts: 110
Likes: 0
Default Re: installing new pistons in bore TROUBLES

I used the tool that was shown in the picture and I actually stand on top of the ring compressor so it sits flush and the rings don't pop out
You have just enought room to fit the handle of a hammer in to push the pistons down
Haven't ever broken a ring
Reply
Old Nov 12, 2012 | 12:43 PM
  #12  
JuicedUpRice's Avatar
Honda-Tech Member
 
Joined: Jun 2012
Posts: 538
Likes: 1
From: Cincinnati OH
Default Re: installing new pistons in bore TROUBLES

Originally Posted by Muckman
Youre not making it flush to the sleeve then. There shouldnt even be a gap to catch the ring. Take a mallet and tap on the top of the spring compressor to make sure its flat and flush to the sleeve. I make the spring compressor as tight as I can with the allen wrench and I coat the sides with motor oil. I tap the piston down using my mallet handle but I pad the piston dome with a rag. You shouldnt ever have to hammer on the piston. Remember how much force you used when the rings broke? Thats too much. Back off and reset.
i agree here.i use the same ring compressor and have never had any issues with it unless i wasnt getting it flush.and as stated,make sure the rings are gapped correctly.
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Freemananana
Engine Machining & Assembly
26
Oct 15, 2015 09:13 AM
aznboi_2
Tech / Misc
6
Apr 26, 2009 09:36 PM
teal_deal
All Motor / Naturally Aspirated
2
Apr 22, 2007 06:10 AM
nkymain
All Motor / Naturally Aspirated
3
Sep 25, 2005 10:03 PM
drunknbass
Tech / Misc
3
Jun 3, 2005 01:22 PM




All times are GMT -8. The time now is 02:53 PM.