Contact Overland Solutions for all your custom modifications and setup for overland travel.               Discover the extraordinary with Compass Expeditions.

Go Back   The HUBB > Technical, Bike forums > Tech
Name that engine part... Name that engine part...
Register FAQ Calendar Search Today's Posts Mark Forums Read

Tech ALL bikes: "Generic" tech questions and answers. Maintenance, general discussions etc.
With more than 58 destinations worldwide, Edelweiss Bike Travel is Number 1 in guided motorcycle tours!
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 1 Feb 2012
Registered Users
Veteran HUBBer
  
Join Date: Jun 2008
Posts: 237
Name that engine part...
Hello, (long time/no post and all that...)

Carried out an internal engine inspection today (Wednesdays are really boring) and have come accross a part on the clutch side that I cannot identify. My bike is (still) a 125cc Derbi.



The object in question is the circular piece just east of the clutch assembly, and just north of the yellow gear. Its cover was a metal plate with three screws and some kind of spring loaded pin. Photo below;



does anyone have any idea what it is? It sems to be on the crankshaft and it roates with it too. Any help would be much appreciated.
Reply With Quote
  #2  
Old 1 Feb 2012
Alexlebrit's Avatar
Registered Users
Veteran HUBBer
  
Join Date: Mar 2006
Location: West London
Posts: 761
Sites it rotate or anything? I have no idea what it is, but good to sere you've still got the Derbi, I'm on my second, one day we'll get together.
__________________
Happiness is a 125
Reply With Quote
  #3  
Old 1 Feb 2012
oothef's Avatar
Registered Users
Veteran HUBBer
  
Join Date: Feb 2010
Location: york
Posts: 265
Interesting, very interesting, but no idea.....Does it mate up with an oil flow or return pipe/gallery in the casing?
__________________
Anything can happen in the next half hour
Reply With Quote
  #4  
Old 1 Feb 2012
Registered Users
Veteran HUBBer
  
Join Date: Feb 2006
Posts: 1,297
Perhaps a legacy part for a mechanical advance and retard system for the ignition?
Reply With Quote
  #5  
Old 1 Feb 2012
Registered Users
Veteran HUBBer
  
Join Date: Jun 2008
Posts: 237
It rotates with the crankshaft, and does not sit flush with the clutch basket but prevents it's removal. It was full of oil when I opened it, appeared to be the same consistence/viscosity as my engine oil so I pesume it is open at the other side. There is nothing in the casing, apart from the clutch lever. Havnt had the left side off yet but will have a look tomorrow.

Nice to here your still biking Alex. Havn't done much myself since Scotland last year. Are you still rocking a Terra?
Reply With Quote
  #6  
Old 2 Feb 2012
Registered Users
HUBB regular
  
Join Date: Mar 2011
Location: Brazil - MG - Uberlandia
Posts: 76
Looks like an oil pump

http://www.derbimotorcyclespares.co....ageID=23&uid=0

http://www.derbimotorcyclespares.co....ageID=19&uid=0
__________________
Suzuki GN125 2005 - Uberlândia / MG - Brazil
You don't need to have a big bike to have a great adventure.
Reply With Quote
  #7  
Old 2 Feb 2012
Registered Users
Veteran HUBBer
  
Join Date: Apr 2008
Location: Itinerant
Posts: 275
What does the manual call it?

You DO have a service manual, don't you? Ballsy to tear into an engine without one - take my hat off to that...

Is it some kind of oil reservoir for the crank bearings? Oil filter bypass valve in case of blocked filter? NFI but one of the usual mechanic might know....
Reply With Quote
  #8  
Old 2 Feb 2012
oothef's Avatar
Registered Users
Veteran HUBBer
  
Join Date: Feb 2010
Location: york
Posts: 265
Could it be an oil filled fly wheel, some kind of damper/smoother of power?
__________________
Anything can happen in the next half hour
Reply With Quote
  #9  
Old 2 Feb 2012
Registered Users
Veteran HUBBer
  
Join Date: Feb 2002
Location: Back home, but not for long
Posts: 425
Is it a centrifugal oil filter?
__________________
Hard work never killed anyone but why take the chance?
Reply With Quote
  #10  
Old 2 Feb 2012
javkap's Avatar
Registered Users
Veteran HUBBer
  
Join Date: Mar 2003
Location: Buenos Aires - Argentina
Posts: 338
Quote:
Originally Posted by mark manley View Post
Is it a centrifugal oil filter?
YES, you are rigth!!

reclaim your prize...

Saludos
__________________
Javier...
Dakar Motos


“El mejor remedio para la Boludez, es la Inteligencia…”
Reply With Quote
  #11  
Old 2 Feb 2012
Registered Users
Veteran HUBBer
  
Join Date: Jun 2008
Posts: 237
Yes this seems to be the part! The second link shows a diagram that matches the part I could not identify. Thanks for all the help
Reply With Quote
Reply

« Previous Thread | Next Thread »

Currently Active Users Viewing This Thread: 1 (0 Registered Users and/or Members and 1 guests)
 
Thread Tools
Display Modes
Linear Mode Linear Mode

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Engine 'transplanting'. Feasible? brianrossy Suzuki Tech 3 1 Day Ago 00:42
Old Tenere - new 660 engine - good idea? RonanE_IRL Yamaha Tech 9 21 Jan 2012 22:14
Engine Gaskets Question preppypyro Yamaha Tech 8 6 Jan 2012 09:42
DR650 Engine Dead, Ideas? brianrossy Suzuki Tech 18 4 Jan 2012 08:37
XT600E 2002 Engine Oil Trichelia Yamaha Tech 17 17 Nov 2011 14:25


All times are GMT +1. The time now is 09:05.

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