Author Topic: Front fork problem  (Read 3704 times)

Offline Greg65

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Front fork problem
« on: October 22, 2014, 11:04:59 PM »
I am replacing the seals on the front forks. The first one has come apart fine however ( there is always a however) the second is sulking. The bottom socket bolt, oil lock piece and under seat pipe are all rotating! So how do I hold the internal gubbins still while I undo the socket bolt. Thanks in advance for your wise words.

Greg
Keep smiling it makes the management nervous.
Honda CB400 1976
Suzuki GS1000 1978

Offline Bryanj

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Re: Front fork problem
« Reply #1 on: October 23, 2014, 08:46:09 AM »
Put the fork back together with spring and top nut the hold fork upside down and push down on slider to compress spring

Offline Clem2112

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Re: Front fork problem
« Reply #2 on: October 23, 2014, 09:08:32 AM »
Second that... you need friction to hold the inner damper rod still.

Offline steven400/4

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Re: Front fork problem
« Reply #3 on: October 23, 2014, 09:25:46 AM »
or use the speed of an air gun that worked on mine
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Offline matthewmosse

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Re: Front fork problem
« Reply #4 on: October 23, 2014, 11:20:40 AM »
Sharpen a broom handle like a pensil and bang it in with a hammer can work too.
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Offline MikeM

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Re: Front fork problem
« Reply #5 on: October 23, 2014, 11:59:50 AM »
the way I got mine off was wrap fork in a towel put it in a workmate or the like and use an allen key on a socket,

one like this

http://www.ebay.co.uk/itm/Signet-6mm-Allan-key-socket-3-8-drive-/251681322950?pt=LH_DefaultDomain_3&hash=item3a996037c6

did not use a lot of pressure , more of a snap action to break the seal

Offline Greg65

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Re: Front fork problem
« Reply #6 on: October 23, 2014, 04:45:29 PM »
Thanks for all the advice. First up tried the reassembly and spring compression method, no joy. So picked up the offending fork and walked down the road to my local garage. Air gun worked a treat. If I had known would have gone there with both in the first place.

Now a quick question for the assembly. The workshop manual mentions a " liquid sealant" on the threads of the socket bolt prior to assembling. Any particular type?

Cheers,
Greg
Keep smiling it makes the management nervous.
Honda CB400 1976
Suzuki GS1000 1978

Offline Lynx

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Re: Front fork problem
« Reply #7 on: October 23, 2014, 05:34:49 PM »
Hi Greg,
I'm surprised they say use a sealant. I never have. there should be a copper washer under each Allen bolt. This should seal fine. You could use some of the dreaded silicone gasket but just a smear. I wouldn't use locktight and you will have trouble getting them apart again should you or anyone else ever need to.
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Previous bikes include
1976 Honda CB400F Now sold :-(
CB350K3 x2
CB250G5
CX500C
VF500F2
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Offline hairygit

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Re: Front fork problem
« Reply #8 on: October 23, 2014, 05:55:50 PM »
I have seen threadlock mentioned in the cycleserve manual, presumably to prevent the bolt working loose in service, think about it, if the bolt came loose, what is holding your fork leg together, frankly, nothing. I bought a pair of n.o.s. fork legs from D.S.S. About 20 odd years ago, and one of the seals leaked, so took them apart to renew them, and there was some kind of sealant/thread locking compound on the factiry fitted bolts. So I used some loctite thread lock on rebuilding, and had no problems dismantling them to do the seals again 10 years ago. It's up to you, but I would certainly go for a thread locking compound.:))

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Offline Greg65

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Re: Front fork problem
« Reply #9 on: October 24, 2014, 08:18:29 AM »
There was some sort of sealant/thread lock present around the lock bolt when I dismantled them. I have heat treated the copper washers so will see how that goes.
Keep smiling it makes the management nervous.
Honda CB400 1976
Suzuki GS1000 1978

Offline hairygit

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Re: Front fork problem
« Reply #10 on: October 24, 2014, 09:24:33 AM »
Your bike, your choice, but if Honda specify sealant/locking compound, they do it for a reason!???

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Offline Bryanj

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Re: Front fork problem
« Reply #11 on: October 24, 2014, 09:29:24 AM »
Done loads, never ever used threadlock but sometimes new washers

Offline Trigger

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Re: Front fork problem
« Reply #12 on: October 24, 2014, 09:33:49 AM »
Same as Bryan, done shed loads over the years. Seen them with & without thread lock but, always build without.

Offline Lynx

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Re: Front fork problem
« Reply #13 on: October 24, 2014, 11:08:17 AM »
However. Always torque to specified torque.
Yamaha RD500LC
Triumph Speed Triple RS.

Previous bikes include
1976 Honda CB400F Now sold :-(
CB350K3 x2
CB250G5
CX500C
VF500F2
VF1000FE

Offline Greg65

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Re: Front fork problem
« Reply #14 on: October 24, 2014, 11:14:25 AM »
As the forks are penciled in for a rechrome and grind in the near future I will leave it out. Many thanks for all the wise words.

Greg
Keep smiling it makes the management nervous.
Honda CB400 1976
Suzuki GS1000 1978

 

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