I thought it was my headset... Its my forks... fixed

The Northern Monkey
The Northern Monkey Posts: 19,136
edited October 2009 in MTB workshop & tech
I don't think it is...

When suddenly braking there a click/bang from the front of my bike. I've checked the headset and the bearings are fine and the steerer is secure.

I'm thinking its either my fork internals or my disk.

I've checked the disk but its secure on the hub... I have herd that the saint disks can click at the rivets (thats if they are rivets lol!).http://www.chainreactioncycles.com/Mode ... elID=27690

I can take my fork apart tomorrow and have a look, they have taken a big knock not long ago so it could be related.

Hmm.

Just had a bit of a look at my forks, the noise seems to come as the travel gets to the power bulge thing... is that normal?
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Comments

  • Whytepeak
    Whytepeak Posts: 2,616
    Is the disk a centre lock model?
    Now that we are strong ought to bear the infirmities of the weak and not to please ourselves. ROMANS 15:1
  • aye it is..

    Not convinced its my forks now though. It really seems to be coming from my headset so I think a strip down and regrease is in order tomorrow.

    If it is my headset do I have problems? Its an FSA pig pro DHthats a sealed unit... I don't thinkg the bearings can be serviced :(
  • Anonymous
    Anonymous Posts: 79,665
    On most sealed bearings, you can prize off the side cover, and grease them up. Or, alternatively, just replace the cartridges.
    Make sure your preload on the headset is set correctly. Even on some sealed units, you still need the right preload to center the steerer tube, and ensure everything is all snug.
  • nicklouse
    nicklouse Posts: 50,673
    put your hand over the joints and move the bike. you will feel the difference of movement or no movement.

    so hand over the stem spacers and top of frame for the top headset.

    then the lower cups. then where the fork seals are.

    be careful not to confuse fork travel with play.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • nicklouse
    Yea I've done that and had a second opinion. Definately can't find any play in the headset, even loosened all the bolts and pre-loaded the bearings again.... still no play.

    There is no noise through the 1st part of the travel, just nearer the bottom there is a loudish crack/snap. It can also be heard when braking hard and suddenly. fairly sure its not the brakes or the forks, and the noise seems to be coming from the bottom part of the headset.

    Just downloaded the info for the Pig Pro headset and it doesn't look like the bearings can be serviced. I'll take eveything off tomorrow and have a good poke around.
  • Whytepeak
    Whytepeak Posts: 2,616
    Is you brake cable whacking the frame when the fork compresses?
    Now that we are strong ought to bear the infirmities of the weak and not to please ourselves. ROMANS 15:1
  • nicklouse
    nicklouse Posts: 50,673
    which pig is it?

    you could have done the lower cup in or the frame in :shock:
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • its the Pig Pro DH.

    Definately not the cables either, 1st thing I checked!:lol:

    Hope its not the frame :( although I was thinking that the combo of big forks and stupidly powerful brakes..... Edit: and a big heffer......
  • nicklouse
    nicklouse Posts: 50,673
    so that is the pig with steel cups with the 22mm insert depth and the cart bearings?

    or just the standard insert depth?

    as the locating wedge (top) is ally it may be misshapen.
    "Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
    Parktools :?:SheldonBrown
  • It be this one...
    PigPro.jpg

    Thinking about it... when I had my big off, my stem was embedded in the boardwalk (had to literally rip it out from between the planks) so it will have taken some damage probably :(
  • Right... just been out and stripped EVERYTHING!

    Forks, headset and taken off my disk.

    Headset and disk are fine, checked the frame for any cracks and there is nothing.

    However... I am 100% sure it is a noise coming from the Coil Uturn leg of my Domain 318 and I have no idea why.

    The only thing I can think is that there is a plastic sleeve against the inside of the fork leg. I have a feeling that this may be catching on either the spring or the stantions as they compress.

    The noise is pretty bad now and I dunno where to go next..

    TFT? but then they might not be able to actually fix it... or new forks? :(
  • stumpyjon
    stumpyjon Posts: 3,983
    Give TFT a ring. They're very helpful and seem to be aware of a lot of standard problems. I'd try to get the forks fixed before buying more. Don't suppose you have another set of forks to try just to confirm it is them making the noise?

    Are they ready for a service anyway? TFT will also check the bushings and replace them as well if needed.
    It's easier to ask for forgiveness than for permission.

    I've bought a new bike....ouch - result
    Can I buy a new bike?...No - no result
  • Right I just phoned TFT who say it sounds like the forks are coming lose from the crown (does that make sense to anyone?) and would cost around £185 to fix :shock:

    He's said its still under warranty so I should go back to where I got it from (CRC), but what should I say and how should I go about this?

    Thing is... its gonna take agesssssss :evil:
    grrrr I've had no luck at all recently :(
  • Anonymous
    Anonymous Posts: 79,665
    damn it.
    wanna borrow my 55s? they're just gathering dust in the garage at the moment. At least they're rideable. (for now :roll: )
  • supersonic
    supersonic Posts: 82,708
    Take out the U turn spring. Then put it back and see if it still happens.
  • supersonic wrote:
    Take out the U turn spring. Then put it back and see if it still happens.
    I did lol...twice!
  • supersonic
    supersonic Posts: 82,708
    Ah but did you look at it in a menacing way?
  • Very.... I even threw something!
  • supersonic
    supersonic Posts: 82,708
    Oh well, the crown is fooked then!
  • Dammit!
    Forks aren't made to cope with real sized men!
  • Get some fox's... they don't break!

    [runs and hides]
  • Anonymous
    Anonymous Posts: 79,665
    My Fox 36s have been awesome so far. BUT, buying them does mean that I probably won't have any more spare cash until just before crimbo :?
  • i've been pondering some 36's lol.

    I'll send these off as soon as crc get back to me.

    Urgh... i'm gonna definately need another bike to fill the gap of having no bike...waaaiiitt a minute wilma!!
  • I've killed my Fox 32 Talas RLCs, Mojo are currently reviving them for just £255! They're only 15 months old too!
  • Anonymous
    Anonymous Posts: 79,665
    bigbenj_08 wrote:
    i've been pondering some 36's lol.

    I'll send these off as soon as crc get back to me.

    Urgh... i'm gonna definately need another bike to fill the gap of having no bike...waaaiiitt a minute wilma!!
    Well, the 55s are available. Bag em quick, before they explode again! :lol:
  • haha how much you want for em?
    Might do as a temporary solution... at least I'd have a bike... for a bit :lol:
  • Anonymous
    Anonymous Posts: 79,665
    I'll charge an hourly fee. £100 an hour seems reasonable! Means you could probably borrow them for a tenner :lol:
  • LOL!

    Well i'll need my car back 1st so I can pop down!
    Borrow em for a blast round 'degla lol!
  • stumpyjon
    stumpyjon Posts: 3,983
    See, told you TFT were good, diagnosed right over the phone.
    It's easier to ask for forgiveness than for permission.

    I've bought a new bike....ouch - result
    Can I buy a new bike?...No - no result
  • stumpyjon wrote:
    See, told you TFT were good, diagnosed right over the phone.
    he wa a bit... abrupt though.

    wether he's right or not though.... :lol:

    gonna take the stiff spring out and put the normal one in just incase they send new forks!