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2qmedic
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« on: October 28, 2010, 02:11:58 PM » |
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Was doing a pre ride today. Drove over RR tracks (slight bump) and heard a metalic pop ??? . Everything seemed ok. Got home and noticed leaking fork oil from right seal  . While compressing forks now I hear a clunk from the right fork.  Any ideas on the clunking??? Could be the seal it self...??? Thanks in advance |
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« Last Edit: October 28, 2010, 02:38:50 PM by 2qmedic »
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Daniel Meyer
Member
Posts: 5493
Author. Adventurer. Electrician.
The State of confusion.
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« Reply #1 on: October 28, 2010, 02:40:16 PM » |
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Clunking? That's a bit scary actually...sounds like the dampener may have come loose or apart...there's not really anything else in there that can come loose...
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CUAgain, Daniel Meyer  |
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2qmedic
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« Reply #2 on: October 28, 2010, 05:41:46 PM » |
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Guess the damper would make sense also.
Hopefully, something simple, like just loose....
Guess I'll get into the manual tomorrow.
Thanks Daniel
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Ricky-D
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« Reply #3 on: October 29, 2010, 07:33:05 AM » |
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How many miles on the bike?
Have you done any previous work on the front forks?
Going over anything that will unload the front will allow the forks to fully extend and usually will involve some kind of clunk, the seriousness of the unloading will necessarily affect the intensity of the "clunk"
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2000_Valkyrie_Interstate
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2qmedic
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« Reply #4 on: November 02, 2010, 06:52:32 PM » |
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I disassembled the right fork tonight. Found nothing broken, or nothing that would support any clunking described above.
The only thing I noticed was that the damper rod lock nut was 1/2 way installed on the threads. The manual says to hand tighten the lock not untill it bottoms out on the damper rod.
Could the 1/2 way positioning cause the clunking from the compression/rebound transition?
Seems it may be possible could due to a lesser spring tension. Not sure...
Any thoughts? ???
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hubcapsc
Member
Posts: 16788
upstate
South Carolina
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« Reply #5 on: November 02, 2010, 07:03:18 PM » |
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Any thoughts? ???
I'm thinkin' the clunk was a pop - when the fork seal let loose... and it'll all be good again after you put everything back together... -Mike |
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2qmedic
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« Reply #6 on: November 02, 2010, 07:32:52 PM » |
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Been sitting here getting a parts list together.
I'm inclined to agree with you for the initial pop that was heard. Just odd that such a small bump (seriously small) would cause that.
However, it was the straw that broke the camels back...I guess it was time...
For the clunk sound, this is when at home while pushing down on the handlebars. As the forks compress and then release, that is when the clunk is heard. But like I said, nothing appears to be causing the sound...
Got some progressive springs to go up there now also.
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« Last Edit: November 02, 2010, 09:59:30 PM by 2qmedic »
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tarheel-one
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« Reply #7 on: November 03, 2010, 06:28:58 AM » |
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Could it be that the fork seal was leaking and went unnoticed until enough fork oil leaked out, causing a lack of dampning? Something similar happened to me this summer on a trip from California to North Carolina on my 99 Standard. I felt the clunk pulling into a gas station. The was fork oil all over the front of the engine. Also down in the brakes. I had to tie a rag (fork diaper) around my fork to keep any more oil from getting into the brakes, for the last 1,200 miles home. Each bump caused a noise in the forks. Got home and had seals replaced and also put in progressive springs. Rides much better now. While at it, had the steering head bearings and front and rear bearings replaced.
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1970 Kawasaki 250 F4 Sidewinder
1999 Honda Valkyrie Standard
2008 Honda Goldwing
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2qmedic
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« Reply #8 on: November 03, 2010, 02:29:34 PM » |
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No seeping at all. it all happened when I heard the initial pop ???. After I arrived home, the front end of the bike was bathed in oil and I had a 6" puddle under the front tire 1 hr later . Ainlt life interesting??? just keeps ya guessing and on your toes all the time!!!  |
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Ricky-D
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« Reply #9 on: November 04, 2010, 10:08:36 AM » |
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No seeping at all. it all happened when I heard the initial pop ???. After I arrived home, the front end of the bike was bathed in oil and I had a 6" puddle under the front tire 1 hr later . Ainlt life interesting??? just keeps ya guessing and on your toes all the time!!! Sounds as if the bolt came loose and the damper is now free inside the shock. The bolt is unable to be seen without removal of the axle. That can be the only explanation for the puddle of oil. The only thing holding the shock together now is the other shock with both being held by the triple trees. Pretty dangerous situation I would surmise. *** |
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2000_Valkyrie_Interstate
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2qmedic
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« Reply #10 on: November 04, 2010, 11:22:28 AM » |
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Ricky-D
sounds as if the bolt came loose and the damper is now free inside the shock. The bolt is unable to be seen without removal of the axle.
That can be the only explanation for the puddle of oil.
The only thing holding the shock together now is the other shock with both being held by the triple trees.
Pretty dangerous situation I would surmise.
Actually, per my previous post on the tear down, the damper lock nut was only installed 1/2 way onto the damper threads. I sumise that with the the spring having less tension, and with the almost total loss of fluid, that these two conditions combined, possibly caused the clucking sound when I compressed the front forks. I haven't had the time to study the operation completely (work, school, church), but this is just a hunch... The sealed failed, nothing else...original post stated that there was a definitive pop heard, actually sounding like metal. This is obviously when the fork seal actually failed. Note: there was no seeping or leaking prior to this event. |
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« Last Edit: November 04, 2010, 01:22:50 PM by 2qmedic »
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2qmedic
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« Reply #11 on: November 04, 2010, 01:25:27 PM » |
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BTW, does any one with the progressive fork springs have any good suggestions for the fork oil weight and fluid level that may be perferred?
Thanks
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hubcapsc
Member
Posts: 16788
upstate
South Carolina
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« Reply #12 on: November 04, 2010, 02:14:36 PM » |
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BTW, does any one with the progressive fork springs have any good suggestions for the fork oil weight and fluid level that may be perferred?
Thanks
I think my forks work great, with progressive springs, 10 wt oil, using the amount of oil specified in the manual. -Mike |
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Ricky-D
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« Reply #13 on: November 05, 2010, 01:22:11 PM » |
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2000_Valkyrie_Interstate
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2qmedic
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« Reply #14 on: November 05, 2010, 05:40:31 PM » |
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ok,
thanks ricky
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