V50/3 fork removal |
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Planter
Falcone Joined: 30 Jan 2019 Location: UK Status: Offline Points: 10 |
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Posted: 30 Jan 2019 at 17:55 |
Puzzled by how to remove the front forks on the V50/3.
The cap nut at the top of the fork does not seem to drop through the yoke hole. Does this mean to take the fork off it is necessary to dissemble the fork in situ by removing the lower bolt that fixes the cartridge to the lower fork leg so that the cartridge can be removed upwards? Or should something else be done? Cheers |
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iansoady
Senior Member Joined: 23 Jul 2017 Location: Redditch Status: Offline Points: 2402 |
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No, I think it should go through. I take it you've removed the mudguard and are trying to remove one leg at a time? You have slackened the pinch bolts of course..... Sometimes stanchions can be rusted in place, and occasionally you need to use a small wedge carefully in the yoke slot to give a bit more clearance.
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Ian
1952 Norton ES2 1986 Honda XBR500 1958-ish Greeves/Triumph in progress |
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Planter
Falcone Joined: 30 Jan 2019 Location: UK Status: Offline Points: 10 |
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Yes, the entire front end is stripped down.
I reversed the pinch bolts to push the yoke holes open. The stanchion is moving and turning freely. Will give it another go. Cheers |
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c13pep
Senior Member Joined: 31 Aug 2017 Location: Doncaster Status: Offline Points: 2110 |
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Exactly as Ian says whether they`re oil/pneumatic or hydraulic CHRIS |
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you can`t have any fun in a straight line
Monza Honda CB77 project |
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Planter
Falcone Joined: 30 Jan 2019 Location: UK Status: Offline Points: 10 |
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Thanks guys, got the forks off.
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iansoady
Senior Member Joined: 23 Jul 2017 Location: Redditch Status: Offline Points: 2402 |
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What was stopping it?
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Ian
1952 Norton ES2 1986 Honda XBR500 1958-ish Greeves/Triumph in progress |
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Planter
Falcone Joined: 30 Jan 2019 Location: UK Status: Offline Points: 10 |
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The cap nuts had been rounded in past time which gave a couple of high spots and meant they did not pass through the yokes. I stripped the forks down in situ and the stanchions then dropped through quite happily.
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iansoady
Senior Member Joined: 23 Jul 2017 Location: Redditch Status: Offline Points: 2402 |
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Good news.
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Ian
1952 Norton ES2 1986 Honda XBR500 1958-ish Greeves/Triumph in progress |
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waynedear
Falcone Joined: 12 Feb 2018 Location: Liverpool Status: Offline Points: 38 |
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Did mine yesterday, once the wheel and associated gubbins were removed and the clamps slackened they slid straight out.
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Planter
Falcone Joined: 30 Jan 2019 Location: UK Status: Offline Points: 10 |
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Wish mine worked like that!
One side effect of having to strip the forks apart in situ is that the top of the damper cartridge can be loosened and removed. This gives access to the fork oil in the damper, so leads to possibilities of firming up the fork action if desired. However, next question is what this oil is? This oil is not mentioned in the workshop handbook. |
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Planter
Falcone Joined: 30 Jan 2019 Location: UK Status: Offline Points: 10 |
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Some pictures to illustrate:
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Planter
Falcone Joined: 30 Jan 2019 Location: UK Status: Offline Points: 10 |
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Bike back on the road. - Replaced the cartridge fork oil with approx 120-150ml of 7.5 fork oil per fork; old cartridge fork oil was pretty grotty. Filled the cartridge up to the same level as the old oil. - Used 70ml of DX3 ATF for the fork oil - slow fill process using a syringe and driblling the oil down the outside of the cartridge. - Pressurised the fork to 40psi with a bike pump. This process on my bike pressurises the whole of the fork and not solely the cartridge. Forks seem to work well on the road; front end is tight. Lessons learnt,which seem to specific to my bike: 1) Have to dismantle the fork in situ as the fork cap will not easily go through the yokes. 2) Cartridge oil can be change/replaced by unscrewing the fork cap from the cartridge - this procedure is not mentioned in the handbook. |
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