crank shaft shells - Suzuki GSX-R Motorcycle Forums Gixxer.com
 
LinkBack Thread Tools Display Modes
post #1 of 7 (permalink) Old 11-01-2012, 07:45 AM Thread Starter
Novice
 
Join Date: Jul 2011
Location: york England
Motorcycle: 1989 750 gsxr slingshot.1994 gsxr 750,748 ducati.
Posts: 32
crank shaft shells

i have a knock from the bottom end of my 1993/4 water cooled 750 gsxr,striped the engine and found it was coming from no,one cylinder con rod / crank connection.so it needs knew shells.when i looked on the alpha sport web site.it gives 3 different colored shells.how do i get the rite ones to fit.i guess there all different sizes.
jamespedro28 is offline  
Sponsored Links
Advertisement
 
post #2 of 7 (permalink) Old 11-01-2012, 08:09 AM
Old, cranky, grumpy, slow, and crusty Supermod
 
oldgixxer's Avatar
 
Join Date: Jan 2001
Location: In the garage, smoking one of Anthony D's cigars...
Motorcycle: None, gave them all to Anthony D...
Posts: 17,409
Re: crank shaft shells

Plastiguage&measure
oldgixxer is offline  
post #3 of 7 (permalink) Old 11-02-2012, 03:21 AM
Lifetime Premium
 
wombat58's Avatar
 
Join Date: Jul 2003
Location: Sydney, Australia
Motorcycle: GSXR1100 WS
Posts: 169
Re: crank shaft shells

There are four numbers on the crank, and each rod has a number on the edge near the part line. Look up the table in the manual, and you have the colours you need . . . assuming that there is no wear on the bearing surfaces, of course!
wombat58 is offline  
post #4 of 7 (permalink) Old 11-02-2012, 10:26 AM Thread Starter
Novice
 
Join Date: Jul 2011
Location: york England
Motorcycle: 1989 750 gsxr slingshot.1994 gsxr 750,748 ducati.
Posts: 32
Re: crank shaft shells

hi,is the plastigage the same as a micrometer.and do i measure the diameter or the circumference of the crank.and then does the measurement dictate the colour of the shell...thanks for your help and patience....
jamespedro28 is offline  
post #5 of 7 (permalink) Old 11-03-2012, 02:39 AM
Lifetime Premium
 
wombat58's Avatar
 
Join Date: Jul 2003
Location: Sydney, Australia
Motorcycle: GSXR1100 WS
Posts: 169
Re: crank shaft shells

Plastigauge only checks the clearance between the bearings and the crankpin after asssembly. The numbers on the crankshaft and the conrods (as I mentioned before) relate to the diameters of the crankpin and conrod bore (respectively), and they have been marked by Suzuki. The service manual details all this. I can help if you send the number code on the crank (eg. 2222), and the numbers on the rods in order of cylinders 1 to 4 (eg. 2222). I can then reply with the bearing colours required in order of cylinders 1 to 4. BTW the crankcase and crankshaft are marked with ABC to denote sizes, and the same procedure applies.

Streetbike . . . GSXR1100WS, Yoshi RS3 pipe, Factory Pro jet kit. Hillclimb car . . . 1298cc SBM big block, Yoshi stage 2 cams, FCR41's, Dyna 2000, MTC lockup clutch, Geartronics paddle shifter. Circuit race car . . . currently 1145cc JE kit, but building 1118cc Wiseco Gixxer with Hahn Racecraft EFI turbo.

Last edited by wombat58; 11-04-2012 at 01:31 PM. Reason: typo
wombat58 is offline  
post #6 of 7 (permalink) Old 11-03-2012, 02:47 AM
Novice
 
Wheeliest's Avatar
 
Join Date: Sep 2011
Location: Arizona
Motorcycle: 06 GSXR 1K
Posts: 79
Re: crank shaft shells

if the crank has any kind of wear/damage from the previous "shells", it will just destroy the new "shells" which are called rod bearings - with-in minutes of start up. Also, not to be a complete d1ck but if you dont know what plasti gauge is, then most likely your mechanical ability isn't sufficient for rebuilding a motor.
Wheeliest is offline  
post #7 of 7 (permalink) Old 11-04-2012, 05:21 AM Thread Starter
Novice
 
Join Date: Jul 2011
Location: york England
Motorcycle: 1989 750 gsxr slingshot.1994 gsxr 750,748 ducati.
Posts: 32
Re: crank shaft shells

well thanks for your help.and after doing some sussing out.and down loading a service book.its pretty straight forward.not quite rocket science.the crank is within its tolerances.and the plastigage hair shows the Shel's are worn.so i will replace.experience wise.not to much on Suzuki's.but quite a bit on ducatis and british bikes ....
jamespedro28 is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Suzuki GSX-R Motorcycle Forums Gixxer.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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 On

 
For the best viewing experience please update your browser to Google Chrome