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Magua
3rd January 2009, 15:28
The forks on my brother's gn250 were rediculously hard to get out of the clamps, as it turns out the top of the forks have compressed and flattened out (see the picture). Can this be fixed or are we looking at getting some more from a wrecker?
Squiggles
3rd January 2009, 15:51
Pics of the forks?
Magua
3rd January 2009, 16:10
You can't see it in the pictures as the compressed area is so small, but it was enough to make it VERY difficult to remove the forks. We had to pry the clamps open. Once the top of the fork had slid past the upper clamp, the fork slid up and down easily until the top encountered the lower clamp.
Magua
3rd January 2009, 16:30
Seeing as it's so small, couldn't I just take a belt sander to the top of the forks? Will reduce contact with the clamps, but only in a small area.
Pussy
4th January 2009, 11:27
Shouldn't do any harm to carefully linish the lip off them
xwhatsit
4th January 2009, 13:07
The top yoke isn't too important, it's the bottom yoke which does most of the work (so I've read in a few different places at least), so I don't think taking that lip off will do any harm at all. If you're worried about less contact with the yokes (which you shouldn't be, the insides of the yoke surface is rarely perfect anyway), you could always lower the front end slightly so the sanded-off bit is sticking out the top.

I wonder if the reason why this happened is doing up the top yoke to the proper torque without having the fork caps screwed in?
Magua
5th January 2009, 10:05
Whatever caused it the way I removed them couldn't have helped (pipe + hammer).

I gave them a jolly good sand and they fit just fine now.
imdying
8th January 2009, 13:43
Shouldn't do any harm to carefully linish the lip off them

Only think I can think of would be giving the chrome a place to start flaking? Given it's so far away from the working area, probably not an issue.
Katman
8th January 2009, 17:33
That's what happens when you let gorillas play at being mechanics.

Look up the specified torque setting for triple clamp pinch bolts and you'll find that they don't have to be done up FT.
Shaun
9th January 2009, 03:42
That's what happens when you let gorillas play at being mechanics.

Look up the specified torque setting for triple clamp pinch bolts and you'll find that they don't have to be done up FT.


Amazing what can be done when done correctly eh!
The Pastor
9th January 2009, 13:57
Hey we bashed them good! Had to get out the cirular saw to get the bastards back in, but there in now!
Sparrowhawk
9th January 2009, 14:57
Only think I can think of would be giving the chrome a place to start flaking? Given it's so far away from the working area, probably not an issue.

I was thinking the same, especially if it's one of the newer GN's with the chinese chroming. perhaps give the area that's been sanded a spray with some silicon-in-a-can, to keep the moisture out.