Help & FAQs    Search BCF    Members    Groups    Events Calendar
Resend my activation email : Register : Log in 
BCF: Bike Chat Forums


clunk clunk

 Reply to topic
Bike Chat Forums Index -> The Workshop
View previous topic : View next topic  
Author Message

simonplatt
Two Stroke Sniffer



Joined: 17 Jan 2013
Karma :
PostPosted: 14:52 - 12 Jul 2014    Post subject: clunk clunk Reply with quote
am getting a clunk at the front when braking hard to a stop and fully depressing forks. on the way down and on the way up at the bottom of the travel.
i think that its the valves in the legs, but the oil was done a while ago, there is no seeps or leakage.

not wanting to remove and empty the legs again, is there a way to 'dip' them to check oil level?

and of course know if they are low or not.
 Back to top
View user's profile Send private message You must be logged in to rate posts

CaNsA
Super Spammer



Joined: 02 Jan 2008
Karma :
PostPosted: 14:53 - 12 Jul 2014    Post subject: Reply with quote
Check the headstock is tight enough, along with the bolt on top of the top yoke.
 Back to top
View user's profile Send private message You must be logged in to rate posts

killerbanjo
Renault 5 Driver



Joined: 17 Jun 2013
Karma :
PostPosted: 14:58 - 12 Jul 2014    Post subject: Reply with quote
Sounds like your steering stem is loose. Try taking off the top yolk and tightening the stem. Don't over tighten it though or you might damage the roller bearings Thumbs Up
 Back to top
View user's profile Send private message You must be logged in to rate posts

CaNsA
Super Spammer



Joined: 02 Jan 2008
Karma :
PostPosted: 15:09 - 12 Jul 2014    Post subject: Reply with quote
killerbanjo wrote:
Sounds like your steering stem is loose. Try taking off the top yolk and tightening the stem.


No need to remove the yoke to tighten the stem.

Last edited by CaNsA on 15:48 - 12 Jul 2014; edited 1 time in total
 Back to top
View user's profile Send private message You must be logged in to rate posts

lihp
World Chat Champion



Joined: 22 Sep 2010
Karma :
PostPosted: 15:18 - 12 Jul 2014    Post subject: Reply with quote
Check head bearings
 Back to top
View user's profile Send private message You must be logged in to rate posts

Nobby the Bastard
Harley Gaydar



Joined: 16 Aug 2013
Karma :
PostPosted: 16:49 - 12 Jul 2014    Post subject: Reply with quote
Definately sounds like there is movement in the headstock and if you are lucky , it just needs a tweak to the nut on the top. You definately don't need to remove the yoke to do it though.

On mine, the torque setting quoted is stupidly high so using the general approach of 'nipping it up till it feels right' would probably mean it's not tight enough.
____________________
trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Triumph Sprint ST 1050
 Back to top
View user's profile Send private message You must be logged in to rate posts

CaNsA
Super Spammer



Joined: 02 Jan 2008
Karma :
PostPosted: 16:53 - 12 Jul 2014    Post subject: Reply with quote
So maybe he need to check and tighten the headstock?
 Back to top
View user's profile Send private message You must be logged in to rate posts

Nobby the Bastard
Harley Gaydar



Joined: 16 Aug 2013
Karma :
PostPosted: 17:01 - 12 Jul 2014    Post subject: Reply with quote
Yes. But he doesn't need to remove the yoke to check and tighten it.
____________________
trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Triumph Sprint ST 1050
 Back to top
View user's profile Send private message You must be logged in to rate posts

CaNsA
Super Spammer



Joined: 02 Jan 2008
Karma :
PostPosted: 17:13 - 12 Jul 2014    Post subject: Reply with quote
Nobby the chihuahua wrote:
Yes. But he doesn't need to remove the yoke to check and tighten it.


To tighten what?

The headstock?
 Back to top
View user's profile Send private message You must be logged in to rate posts

Nobby the Bastard
Harley Gaydar



Joined: 16 Aug 2013
Karma :
PostPosted: 18:01 - 12 Jul 2014    Post subject: Reply with quote
Definately the headstock. Not the top yoke. if you try and tighten the top yoke you'll just rip out threads.
____________________
trevor saxe-coburg-gotha:"Remember this simple rule - scooters are for men who like to feel the breeze on their huge, flapping cunt lips."
Triumph Sprint ST 1050
 Back to top
View user's profile Send private message You must be logged in to rate posts

lihp
World Chat Champion



Joined: 22 Sep 2010
Karma :
PostPosted: 18:05 - 12 Jul 2014    Post subject: Reply with quote
So you can tighten a steering stem without removing the top yoke?
 Back to top
View user's profile Send private message You must be logged in to rate posts

Ste
Not Work Safe



Joined: 01 Sep 2002
Karma :
PostPosted: 18:07 - 12 Jul 2014    Post subject: Reply with quote
The headstock is the piece of metal that goes from the bottom yoke and through the frame, it's not exactly adjustable! Laughing

I assume you're meaning the bearings, which can be tightened without removing either yoke.
 Back to top
View user's profile Send private message Visit poster's website You must be logged in to rate posts

lihp
World Chat Champion



Joined: 22 Sep 2010
Karma :
PostPosted: 18:11 - 12 Jul 2014    Post subject: Reply with quote
Ste wrote:

I assume you're meaning the bearings, which can be tightened without removing either yoke.


Can I remove the lower yoke to tighten?
 Back to top
View user's profile Send private message You must be logged in to rate posts

YBR Ric
Spanner Monkey



Joined: 16 Jan 2012
Karma :
PostPosted: 18:28 - 12 Jul 2014    Post subject: Reply with quote
DON'T FORGET to slacken the top yoke bolts before adjusting the steering head bearings or something will get damaged Shocked
 Back to top
View user's profile Send private message You must be logged in to rate posts

gavcarter
Could Be A Chat Bot



Joined: 28 Mar 2009
Karma :
PostPosted: 22:13 - 12 Jul 2014    Post subject: Reply with quote
YBR Ric wrote:
DON'T FORGET to slacken the top yoke bolts before adjusting the steering head bearings or something will get damaged Shocked


Not until you try and tighten the top yoke back down Wink


If you cant pick your way through the replies, then here is what to do.



first gain access to the headstock area ( remove fairings, clocks etc what ever will be in the way )

get the front end in the air, when stuck i have used the centre stand, and ratchet straps to a drain cover to pull back of bike down over.

Next slowly tighten the upper bearing retainer down. This will be similar to this one
https://www.hvccycle.com/images/HVC20092.JPG

Dont over tighten just nip it up, keep checking front end can turn nicely as you tighten it.

General rule is to get it as tight as possible without affecting the steering, so keep going until the steering feels just slightly stiff than back it off very slightly.

It may have a second nut similar to the one above to lock into place. Lock them together if it does.

If it does not, loosen top yoke from the forks, and it should budge, wiggle, tap with hammer handle, down the stem and fork legs to sit back flush on top of the bearing retainers.

Tighten yoke nut down as there will now be a slight gap under this and the top yoke.

Re-tighten fork clamps on top yoke.

Measure how much fork leg is protruding the top of yoke, just to be sure you haven't knocked one leg further down the bottom yoke ( not likely but has been known )

Double check steering, and check stem for movement, push front wheel back and forth, the "knock" should have gone now, also pay particular attention to the straight position.

when turning form right to left and back again the steering should no go light or stiffen up as it passes central ( straight ahead ) if it does your bearing, or the bearing races are fooked and will want replacing quite soon.

Best of luck, hope Ive explained everything in English Thumbs Up
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts

gavcarter
Could Be A Chat Bot



Joined: 28 Mar 2009
Karma :
PostPosted: 22:16 - 12 Jul 2014    Post subject: Reply with quote
PhilDawson8270 wrote:
So you can tighten a steering stem without removing the top yoke?


IF you can get access yes, a large c-spanner type tool is usually require with top toke in place - they will usually squeeze in under the top yoke from the back side of the forks

https://faq.f650.com/FAQs/Photos/SteeringPhotos/SlottedNutTighten.jpg

Most people remove the top yoke in order to use a pair of stilsons, other large spanners or a brass drift and a small hammer or what ever else they decide to turn the nut with Wink
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts

gavcarter
Could Be A Chat Bot



Joined: 28 Mar 2009
Karma :
PostPosted: 22:21 - 12 Jul 2014    Post subject: Reply with quote
Nobby the chihuahua wrote:

On mine, the torque setting quoted is stupidly high so using the general approach of 'nipping it up till it feels right' would probably mean it's not tight enough.


That will be for the yoke nut though, yes? Which only tightens onto the upper bearing retainer, so it doesn't put any pressure onto the bearings, as this is done by the slotted nut below the yoke....
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts

simonplatt
Two Stroke Sniffer



Joined: 17 Jan 2013
Karma :
PostPosted: 11:39 - 25 Jul 2014    Post subject: Reply with quote
sorry to be so long getting back. thanks to all for assistance.
 Back to top
View user's profile Send private message You must be logged in to rate posts

pdg
World Chat Champion



Joined: 15 Sep 2012
Karma :
PostPosted: 17:25 - 25 Jul 2014    Post subject: Reply with quote
Ste wrote:
The headstock is the piece of metal that goes from the bottom yoke and through the frame, it's not exactly adjustable! Laughing


No it's not... That's the steerer tube - the headstock is the bit of the frame the steerer goes through.

Really Ste, you should know better at your age Wink
____________________
Any and all advice given should not be followed - if you have to ask it means you don't know so get a man in to do it for you.
 Back to top
View user's profile Send private message Send e-mail You must be logged in to rate posts
Old Thread Alert!

The last post was made 11 years, 247 days ago. Instead of replying here, would creating a new thread be more useful?
  Display posts from previous:   
This page may contain affiliate links, which means we may earn a small commission if a visitor clicks through and makes a purchase. By clicking on an affiliate link, you accept that third-party cookies will be set.

Post new topic   Reply to topic    Bike Chat Forums Index -> The Workshop All times are GMT
Page 1 of 1

 
 You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum

Read the Terms of Use! - Powered by phpBB © phpBB Group
 
Debug Mode: ON - Server: birks (www) - Page Generation Time: 0.08 Sec - Server Load: 0.57 - MySQL Queries: 13 - Page Size: 100.45 Kb