Technical Discussion Topics related to Technical Issues

bearing sizes

Thread Tools
 
Search this Thread
 
Old Jan 27, 2010 | 09:51 PM
  #1  
maniac2313's Avatar
Thread Starter
Senior Member
Superstock
 
Joined: Mar 2009
Posts: 277
From: south nj (philly area)
maniac2313 is on a distinguished road
bearing sizes

ok so the motor is all apart and everything seems to be extremely clean... would it be ok to just swap the main and rod bearings with the same size as old bearings are? both the old bearings and crank are absolutely perfect looking and i had 0 problems before. the only reason im even doing a rebuild at all is i had an oil leak behind the front sprocket and didnt want to grind the lip off the seal. i dont want to screw up math and clearance numbers if i can get away with an easy swap of the same sized bearings...also where can i get a set of good oversized pistons?
Old Jan 28, 2010 | 04:34 AM
  #2  
E.Marquez's Avatar
Administrator
MotoGP
 
Joined: Apr 2006
Posts: 4,402
From: Kempner, TX
E.Marquez is on a distinguished road
It would be best of you measured and confirmed/ But if you do not have the proper tools, or time, or??? then, replace them with new, like sized units. If the bearings are in need of replacement due to wear (I get it, your replacing them just because your in there anyway) then the crank journals probable need some attention as well.
Old Jan 28, 2010 | 06:52 AM
  #3  
maniac2313's Avatar
Thread Starter
Senior Member
Superstock
 
Joined: Mar 2009
Posts: 277
From: south nj (philly area)
maniac2313 is on a distinguished road
i could plastiguage it but every time i use those i feel theyre off i know a guy that has a machine shop and hes gonna bore it over for me i guess ill have him measure it out the right way.... theres no real point to cut any corners at this point...
Old Jan 28, 2010 | 10:32 PM
  #4  
shayne's Avatar
Senior Member
SuperSport
 
Joined: Dec 2005
Posts: 963
From: Sunshine Coast, Australia
shayne is on a distinguished road
CP will do oversize pistons.
Old Jan 29, 2010 | 06:28 AM
  #5  
mikstr's Avatar
Senior Member
MotoGP
 
Joined: Apr 2005
Posts: 5,631
From: Montreal
mikstr is on a distinguished road
Honda also do OS pistons (0.25 and 0.5 mm), and JE can do them too (custom order).
Old Jan 29, 2010 | 08:45 AM
  #6  
FL02SupaHawk996's Avatar
Fastest Color
SuperBike
 
Joined: Jul 2007
Posts: 2,091
From: Lithia, FL
FL02SupaHawk996 is on a distinguished road
Yep, use the color code for new bearing sizes and plastigauge is what the manual recommends...

OEM OS Pistons are about $84 each:
http://fiche.ronayers.com/Index.cfm/...NKSHAFT_PISTON

A set of JE OS High Comp slugs can be ordered here and will run you around $300:
http://cgi.ebay.com/ebaymotors/HONDA...Q5fAccessories

oops forgot to say you'll have to order a set of 4 from JE and just sell the other 2 here...

Last edited by FL02SupaHawk996; Jan 29, 2010 at 08:46 AM. Reason: added
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
uchi
Everything Else
0
Jan 25, 2010 08:51 PM
zmaniv
Technical Discussion
20
Mar 8, 2009 08:13 AM
jtgraha2
Modifications - Performance
8
Jan 20, 2008 08:54 AM
Kendrick
Rider's Gear
24
Oct 4, 2007 10:52 AM
inderocker
Forum Feedback
2
Sep 24, 2005 07:47 PM




All times are GMT -7. The time now is 07:00 PM.


Top

© 2026 MH Sub I, LLC dba Internet Brands



When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.