CBR 600F4 1999 - 2000 Honda CBR 600F4 Forum

Fork seal questions

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Old 09-18-2011, 09:39 PM
Levi85's Avatar
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Default Fork seal questions

I'm about to change out my front brake pads and have read that it's important that the fork oil doesn't soak them.
I know the seals where changed out on my bike 8 to 12 months ago but they seam to be leaking again. Maybe an on going problem? Or how long should the seals last? The owner before me I know had them changed as well which means they've been changed at least twice in the last two and a half years. Also another question I had is there a "normal" amount of oil that leaks?

If you have any recommendations for the brake pads I'd gladly listen! I'm ridding a 99 CBR 600.

Thanks for the help!

LY
 
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Old 09-18-2011, 10:18 PM
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I just had both my fork seals replace due to a leak @ 24K mile. This is the first time it's been done, therefore fork seal should last you a handful of years. To have it leaking again is NOT normal. I understand if riders pop many wheelies often may cause premature seal leak...if fork is bent? Or fork is damage, scrape...in anyway? Riding will seal leak for prolonged amount if time is bad for the fork either...dirt/sand will get caught in to seals, act like sandpaper scraping the surface...once damaged, changing new seal maybe only temporary before seal start leaking again. So if there is a fork seal leak, best not to ride to bike. So check if fork is bent, if fork surface is damage/scrape abrasion... Changing 2 sets of seal within 24 months is NOT normal, unless your popping wheelie every other time riding...
 
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Old 09-19-2011, 05:03 AM
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Hi. Try: www.motorcycle-road-and-race.co.uk for your brake pads. I have just bought a full set for my 2002 Honda CBR 600 F1. Total cost for Front EBC pads (2 sets) £ 46.06/Rear £14. 54 for organic pads. £60.60 total cost including all costs. Tel No: 01784 229666


Originally Posted by Levi85
I'm about to change out my front brake pads and have read that it's important that the fork oil doesn't soak them.
I know the seals where changed out on my bike 8 to 12 months ago but they seam to be leaking again. Maybe an on going problem? Or how long should the seals last? The owner before me I know had them changed as well which means they've been changed at least twice in the last two and a half years. Also another question I had is there a "normal" amount of oil that leaks?

If you have any recommendations for the brake pads I'd gladly listen! I'm ridding a 99 CBR 600.

Thanks for the help!

LY
 
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Old 09-19-2011, 10:59 AM
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Factory Honda brake pads are excellent.

In addition to what estate4life mentioned, the seals could have been installed improperly as well. Its a common mistake to nick a seal during installation, rendering it basically useless. A thorough inspection of the fork tube surface should always be done b/f installing new seals. If the fork tube surface has any small scratches or abrasions, they should be smoothed w/ emory cloth b/f installation of seals. Additionally, plastic wrap should be used at the top of the tubes to slip the seals over the top of the tube. Then, use a little fork oil on the tube to gently slide the seals down into position. If proper steps are followed, they seals should be good for a l-o-n-g time.
 
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Old 09-20-2011, 03:19 AM
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Thanks for the help and input. The guy who installed them last was a Honda motorcycle mechanic (changed the seals at his house as a side job, not at the shop) I would have guessed that if something were wrong he would have said so. He was the one who replaced the seals the other times as well. I will be sure to look the forks over to see if I can spot any scratches or notice any damage. I plan on giving they guy a call and asking him about the problem now that I have a better idea what to expect from the bike and seals.
Thanks again for the help!
 
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