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Discussion Starter #1
I have my 2006 cbr600rr and it is leaking at the axle holding knuckle so I'm looking to buy another one. I bought a whole left fork from a guy on eBay for $120.00 shipped to me and he hasn't shipped it or responded to my messages and it's been 10 days. It obviously needs to be straight and the cheaper the better. Also can't be leaking in the same spot... Looked through the for sale ads and there isn't much out there. Shipping would need to be to 46845 zip. Pm me if you have anything. Will buy the whole left side, or just the bottom tube portion. Thanks, Mark
 

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You may not need a new fork mate.

Chances are that it's the fork seal leaking and your just seeing the oil where it's pooling on the carrier.

However, if it really is leaking down there (I'd be really really surprised), pull the current one apart and press the tube out of the carrier, clean it up and inspect for damage. If it all looks good then throw it back together and see how you go. If there is minor pitting on the tube or carrier where they are fitted together that can be easily overcome with a bit of loctite.
 

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Discussion Starter #3
It's definitely from the knuckle. I've done my fair share of fork seals on various bikes and I replaced the fork seals on this already as they were leaking when I bought it. No rust, pitting, or damage (other than somewhere in the knuckle)... The right side is good and the left I thought I tore the seal when installing it so I changed the fork seal again and it was still leaking so I cleaned it off again and I put a plastic bag just above the knuckle and just below the knuckle. Used duct tape the fix it to the top chrome part and zip tie around the bottom black part. Made sure there was clearance for full range of motion. Went out for a ride then when I came back I looked around the outside of the tape and bag, no fluid. I cut the zip tie and pulled the bag up and there was plenty of fluid under it. So just to be 100% sure I immediately then popped of the dust seal and looked in between the tubes at the oil seal and it was dry as a bone. No oil whatsoever on the oil seal or the inner portion of the dust seal.... 100% sure it is leaking at the knuckle... Now what I never have done is pull off one of those knuckles and Honda calls it out as one part with the tube but I've heard that chromers take it off to rechrome the tube and I cannot find anywhere in any forum on how to do this. GSXR forks, yes, CBR ones, no... So the plan is, when I get a new fork, to take this one since its bad anyways and do a full tutorial and put it on here so people with the same problem can fix it instead of buying a new fork... Still in the market for a left fork... I took a picture of the bag test I did to show the local Honda shop and they verified all my information but I must have deleted the picture from my phone.
 

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Discussion Starter #7
I heard they screw on, but now I'm reading they are pressed on?
I read one that said pressed but a "professional chromer" on one of the threads I read said they are screwed on... I'm unsure and VERY surprised no one has done a write up on it yet... Let me see if I can find that thread I read or possibly misread :banghead:
 

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It's definitely from the knuckle. I've done my fair share of fork seals on various bikes and I replaced the fork seals on this already as they were leaking when I bought it. No rust, pitting, or damage (other than somewhere in the knuckle)... The right side is good and the left I thought I tore the seal when installing it so I changed the fork seal again and it was still leaking so I cleaned it off again and I put a plastic bag just above the knuckle and just below the knuckle. Used duct tape the fix it to the top chrome part and zip tie around the bottom black part. Made sure there was clearance for full range of motion. Went out for a ride then when I came back I looked around the outside of the tape and bag, no fluid. I cut the zip tie and pulled the bag up and there was plenty of fluid under it. So just to be 100% sure I immediately then popped of the dust seal and looked in between the tubes at the oil seal and it was dry as a bone. No oil whatsoever on the oil seal or the inner portion of the dust seal.... 100% sure it is leaking at the knuckle... Now what I never have done is pull off one of those knuckles and Honda calls it out as one part with the tube but I've heard that chromers take it off to rechrome the tube and I cannot find anywhere in any forum on how to do this. GSXR forks, yes, CBR ones, no... So the plan is, when I get a new fork, to take this one since its bad anyways and do a full tutorial and put it on here so people with the same problem can fix it instead of buying a new fork... Still in the market for a left fork... I took a picture of the bag test I did to show the local Honda shop and they verified all my information but I must have deleted the picture from my phone.
I know, it's a funny one... I used to think they were properly stuck together until someone on here I think pointed out that I was wrong :)
 

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Discussion Starter #10
Everyone is wrong from time to time :thumbup: . hopefully the other guy(s) were correct in stating that it is threaded.
I gotta get a new fork first then I'm giving it a shot.
 

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Discussion Starter #11
So the eBay guy finally came through on my fork and I have it. I will be rebuilding it swapping the lower portion and attempting to remove, repair and reinstall the axle knuckle. Probably this weekend. I will take tons of pictures and notes, document everything and create a thread for it. Stay tuned. :thumbup:
 
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