Go Back   Horizons Unlimited - The HUBB > Technical, Bike forums > Yamaha Tech
CRANKSHAFT BEARINGS CRANKSHAFT BEARINGS
Register FAQ Calendar Today's Posts
Yamaha Tech Originally the Yamaha XT600 Tech Forum, due to demand it now includes all Yamaha's technical / mechanical / repair / preparation questions.
Photo by Alessio Corradini, on the Salar de Uyuni, Bolivia, of two locals

I haven't been everywhere...
but it's on my list!


Photo by Alessio Corradini,
on the Salar de Uyuni, Bolivia,
of two locals



Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 6 Nov 2005
big t's Avatar
Registered Users
HUBB regular
  
Join Date: Aug 2005
Location: northern ireland
Posts: 89
CRANKSHAFT BEARINGS
Hi all, the left side crankshaft bearing needs replaced on my 3aj. with the camshaft drive sprocket in front of it, how can this bearing be removed? the sprocket looks like its part of the crank and the manual does not show a part number for this bearing. any answers please. thanks T
__________________
big T
Reply With Quote
  #2  
Old 7 Nov 2005
Registered Users
Veteran HUBBer
  
Join Date: Jan 2001
Location: Stockholm
Posts: 651
The gear can be pressed off. The bearing is a standard bearing available from any bearing shop. Make sure to get the C3 variety (= cold play) of the bearing. Should be around 20 Euros apiece.

Auke
__________________
Auke
http://aukemarieke.blogspot.com
Reply With Quote
  #3  
Old 8 Nov 2005
big t's Avatar
Registered Users
HUBB regular
  
Join Date: Aug 2005
Location: northern ireland
Posts: 89
thanks auke,
__________________
big T
Reply With Quote
  #4  
Old 8 Nov 2005
Registered Users
Veteran HUBBer
  
Join Date: Aug 2002
Location: Hendrik Ido Ambacht, Holland
Posts: 360
20 Euros? I'll probably want to sell you a lot at that price.

------------------
Fred, XTZ660, Holland.
__________________
Fred, XTZ660, Holland.
Reply With Quote
  #5  
Old 9 Nov 2005
Registered Users
Veteran HUBBer
  
Join Date: Jan 2001
Location: Stockholm
Posts: 651
Dear Freddo,

What does 'probably' mean in this respect? :-)

Auke
__________________
Auke
http://aukemarieke.blogspot.com
Reply With Quote
  #6  
Old 10 Nov 2005
big t's Avatar
Registered Users
HUBB regular
  
Join Date: Aug 2005
Location: northern ireland
Posts: 89
me again, what is a C3 bearing? should it be stamped on it or how can i tell? also are both bearings the same size on a 3AJ. thanks again guys T
__________________
big T
Reply With Quote
  #7  
Old 10 Nov 2005
Registered Users
Veteran HUBBer
  
Join Date: Aug 2002
Location: Hendrik Ido Ambacht, Holland
Posts: 360
Auke : means that I'll probably make a lot of profit.
T : C3 is the bearing clearance. Should be marked on the packing.

------------------
Fred, XTZ660, Holland.
__________________
Fred, XTZ660, Holland.
Reply With Quote
  #8  
Old 12 Nov 2005
Registered Users
Veteran HUBBer
  
Join Date: Jan 2001
Location: Stockholm
Posts: 651
freddo: no way freddo
T: yes sir, same size both sides, the winning number is: 6307SH2-9TC4 (uuhm .. the last two digits say C4, which might also be a designation of the play. Check with your bearing shop. or fred?). The numbers are stamped on the outer race, or somewhere at least, of the bearing.

Auke
__________________
Auke
http://aukemarieke.blogspot.com
Reply With Quote
  #9  
Old 12 Nov 2005
Registered Users
HUBB regular
  
Join Date: Jul 2005
Location: CapeBreton ,Canada
Posts: 73
hi T ,just wanted to give my opion on replacement bearings. Frist off, luckly, I have not needed to replace any bearings in my xt but being a industrial mechanic I know a bit about bearings.
I would recommend getting them from yamaha. sure you will pay more because manufactures often request special features from their bearing makers and they need to make a profit as well. Bearing houses often cannot supply these special features. You may be able to get a replacement that is the same size however it may not be the same bearing.
aukeboss gave the designation 6307SH2-9TC4 breaking it down -6307 is the size -sh is a special heat treatment -c4 notes extra clearnce the 2 and 9 could mean any number of things.

just my 2 cent worth,
winmac
__________________
Winston
85 xt600Z
02 YZ250
Reply With Quote
  #10  
Old 13 Nov 2005
big t's Avatar
Registered Users
HUBB regular
  
Join Date: Aug 2005
Location: northern ireland
Posts: 89
Thanks guys, got both bearings removed today and priced genuine yamaha ones £70. I understand what your saying winmac and i will bear this in mind.i will visit a few local shops and see what they have to say also. thanks again T
__________________
big T
Reply With Quote
  #11  
Old 17 Nov 2005
big t's Avatar
Registered Users
HUBB regular
  
Join Date: Aug 2005
Location: northern ireland
Posts: 89
Hi all, picked up a set of bearings today. £35 they are identical to the ones yamaha use but half the price! so thanks Mr Aukeboss for saving me some £££s. Now for the REBUILD!!
__________________
big T
Reply With Quote
Reply

« Previous Thread | Next Thread »

Currently Active Users Viewing This Thread: 1 (0 Registered Users and/or Members and 1 guests)
 

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 On

 
 

Announcements

Thinking about traveling? Not sure about the whole thing? Watch the HU Achievable Dream Video Trailers and then get ALL the information you need to get inspired and learn how to travel anywhere in the world!

Have YOU ever wondered who has ridden around the world? We did too - and now here's the list of Circumnavigators!
Check it out now, and add your information if we didn't find you.

Next HU Eventscalendar

ALL Dates subject to change.

2025 Confirmed Events:

  • Virginia: April 24-27 2025
  • Queensland is back! May 2-4 2025
  • Germany Summer: May 29-June 1 2025
  • CanWest: July 10-13 2025
  • Switzerland: Date TBC
  • Ecuador: Date TBC
  • Romania: Date TBC
  • Austria: Sept. 11-15
  • California: September 18-21
  • France: September 19-21 2025
  • Germany Autumn: Oct 30-Nov 2 2025

Add yourself to the Updates List for each event!

Questions about an event? Ask here

See all event details

 
World's most listened to Adventure Motorbike Show!
Check the RAW segments; Grant, your HU host is on every month!
Episodes below to listen to while you, err, pretend to do something or other...

Adventurous Bikers – We've got all your Hygiene & Protection needs SORTED! Powdered Hair & Body Wash, Moisturising Cream Insect Repellent, and Moisturising Cream Sunscreen SPF50. ESSENTIAL | CONVENIENT | FUNCTIONAL.

2020 Edition of Chris Scott's Adventure Motorcycling Handbook.

2020 Edition of Chris Scott's Adventure Motorcycling Handbook.

"Ultimate global guide for red-blooded bikers planning overseas exploration. Covers choice & preparation of best bike, shipping overseas, baggage design, riding techniques, travel health, visas, documentation, safety and useful addresses." Recommended. (Grant)



Ripcord Rescue Travel Insurance.

Ripcord Rescue Travel Insurance™ combines into a single integrated program the best evacuation and rescue with the premier travel insurance coverages designed for adventurers.

Led by special operations veterans, Stanford Medicine affiliated physicians, paramedics and other travel experts, Ripcord is perfect for adventure seekers, climbers, skiers, sports enthusiasts, hunters, international travelers, humanitarian efforts, expeditions and more.

Ripcord travel protection is now available for ALL nationalities, and travel is covered on motorcycles of all sizes!


 

What others say about HU...

"This site is the BIBLE for international bike travelers." Greg, Australia

"Thank you! The web site, The travels, The insight, The inspiration, Everything, just thanks." Colin, UK

"My friend and I are planning a trip from Singapore to England... We found (the HU) site invaluable as an aid to planning and have based a lot of our purchases (bikes, riding gear, etc.) on what we have learned from this site." Phil, Australia

"I for one always had an adventurous spirit, but you and Susan lit the fire for my trip and I'll be forever grateful for what you two do to inspire others to just do it." Brent, USA

"Your website is a mecca of valuable information and the (video) series is informative, entertaining, and inspiring!" Jennifer, Canada

"Your worldwide organisation and events are the Go To places to for all serious touring and aspiring touring bikers." Trevor, South Africa

"This is the answer to all my questions." Haydn, Australia

"Keep going the excellent work you are doing for Horizons Unlimited - I love it!" Thomas, Germany

Lots more comments here!



Five books by Graham Field!

Diaries of a compulsive traveller
by Graham Field
Book, eBook, Audiobook

"A compelling, honest, inspiring and entertaining writing style with a built-in feel-good factor" Get them NOW from the authors' website and Amazon.com, Amazon.ca, Amazon.co.uk.



Back Road Map Books and Backroad GPS Maps for all of Canada - a must have!

Your ad could be here, on EVERY page of the HUBB, or the whole website, or as many as you like!

New to Horizons Unlimited?

New to motorcycle travelling? New to the HU site? Confused? Too many options? It's really very simple - just 4 easy steps!

Horizons Unlimited was founded in 1997 by Grant and Susan Johnson following their journey around the world on a BMW R80G/S.

Susan and Grant Johnson Read more about Grant & Susan's story

Membership - help keep us going!

Horizons Unlimited is not a big multi-national company, just two people who love motorcycle travel and have grown what started as a hobby in 1997 into a full time job (usually 8-10 hours per day and 7 days a week) and a labour of love. To keep it going and a roof over our heads, we run events all over the world with the help of volunteers; we sell inspirational and informative DVDs; we have a few selected advertisers; and we make a small amount from memberships.

You don't have to be a Member to come to an HU meeting, access the website, or ask questions on the HUBB. What you get for your membership contribution is our sincere gratitude, good karma and knowing that you're helping to keep the motorcycle travel dream alive. Contributing Members and Gold Members do get additional features on the HUBB. Here's a list of all the Member benefits on the HUBB.



All times are GMT +1. The time now is 12:30.

Contact Us - Horizons Unlimited Motorcycle Travellers Website - Archive - Privacy Statement - Top