Ducati Sporting Club UK
 
 
Thread Tools Search this Thread Display Modes
  #1  
Old 11-May-2014, 22:07
Fudoshin Fudoshin is offline
Registered Forum User
 
Posts: 6
Join Date: May 2014
Cool Valve clearances too tight to measure

I started adjusting the clearances on my 2000 748 but somehow screwed something up (not using the the shim measuring tools- which I now have!) which meant the was no clearance after adjustment to measure. I thought I'd start all over again and put the old shims back in but they're still too tight to get a feeler gauge in. I was very particular about which shim went were and which half rings belonged to which valve.
Any suggestions on how rectify/get to a point where I can take some measurements? What would you do if you where rebuilding a head?
I'm really enjoying the mini restoration of this bike and don't want to take it to a dealer.

It's only the horizontal head that needs sorting and if I have to take the head off then so be it but would obviously rather not..

Thanks in advance for your time..
Quote+Reply
  #2  
Old 11-May-2014, 22:09
skidlids's Avatar
DSC Region Organiser skidlids skidlids is offline
MotoGP God
 
Posts: 18,274
Join Date: Apr 2002
Mood: Its ONLY a Bike Club
Work out which is your smallest opening and closing shims and try those two in all positions and see if you can then measure some clearances and work out what shims will be needed where


Checkout the Desmo Due Paddock on Facebook
Quote+Reply
  #3  
Old 11-May-2014, 22:23
Fudoshin Fudoshin is offline
Registered Forum User
 
Posts: 6
Join Date: May 2014
Thanks, I'll give that a go..
Quote+Reply
  #4  
Old 12-May-2014, 06:16
dunlop0_1's Avatar
dunlop0_1 dunlop0_1 is offline
Registered Forum User
Big Twin
 
Posts: 1,568
Join Date: May 2009
As Kev said. Also are you sure the closer shims are seating correctly. Once they have been out even with the original half rings they can sometimes need quite a bit of persuasion to seat correctly.

Also do not try and make a measurement/adjustment for both opener and closer at the same time. Do the closer and then the opener.

Quote+Reply
  #5  
Old 12-May-2014, 13:16
Fudoshin Fudoshin is offline
Registered Forum User
 
Posts: 6
Join Date: May 2014
Hi, was careful with the closers but will check again but didn't think to do the two measurements/adjustments separately... Top tip - thanks guys, going to get on it on Wednesday and will let you know- cheers again. JP
Quote+Reply
  #6  
Old 05-Aug-2014, 22:29
Fudoshin Fudoshin is offline
Registered Forum User
 
Posts: 6
Join Date: May 2014
hi guys,
its been an age but wanted to say that I got the shims sorted and thanks to your advice it became pretty straight forward.
Much appreciated!
Quote+Reply
  
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes
Postbit Selector
Switch to Vertical postbit Use Vertical Postbit

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Recent Posts - Contact Us - DSC Home - Archive - Top
Powered by vBulletin 3.5.4 - Copyright © 2000 - 2024, Jelsoft Enterprises Ltd. - © Ducati Sporting Club UK - All times are GMT +1. The time now is 18:23.