BMW K bikes (Bricks)


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1Back to top Go down   Forks Stuck! Empty Forks Stuck! Sun Jan 25, 2015 3:22 pm

bettyswolloks

bettyswolloks
active member
active member
Hey all, I finally got round to doing a bit of work on the K. 1st up was to fit some fork gaiters and give the head bearings a good clean and grease. So up on the paddock stands with her and off with the front wheel. I've slackened off the pinch bolts in the yokes, given it a good coat of penetrating stuff, made a brew and....well that's as for as I got! They will not budge! Any ideas? Or am I missing something? I plan on taking off the top yoke so with any luck I'm just wrestling with the bottom yoke. And think a little diesel to try and free them off?

Also, is it normal to be able to push down on the fork caps on the top of the stanchion?

http://ranfog.co.uk
    

2Back to top Go down   Forks Stuck! Empty Re: Forks Stuck! Sun Jan 25, 2015 5:21 pm

Two Wheels Better

Two Wheels Better
Moderator
Moderator
Try a wide, flat wedge gently prised into the 'split' of the triple clamps after removing the tension bolts. This should allow the legs to drop free of the triples. Gentle raps from a soft hammer round the bits might ease them out after widening the splits.


__________________________________________________
"A long ride is the answer to a question you will soon forget!" ~ Anonymous
1977 R75/7-100, '93 K11/K12 Big Block, '93 K1100RS, '95 R100 Mystic, '96 K1100RS, 2 x '98 K1200RS, '06 K1200R & '09 K1300GT
    

3Back to top Go down   Forks Stuck! Empty Re: Forks Stuck! Sun Jan 25, 2015 7:50 pm

Rick G

Rick G
admin
admin
Yeah what he said and it is normal for the top plugs to do that it is the way to pulling them apart. When you push it down a circlip is exposed.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1999 K1100 LT with a Big Block 1200
    

4Back to top Go down   Forks Stuck! Empty Re: Forks Stuck! Tue Jan 27, 2015 2:52 pm

bettyswolloks

bettyswolloks
active member
active member
Knocked some wedges in I made at work from a hammer handle that was lying about, soaked the yokes with some diesel.

Still stuck fast!!!!

http://ranfog.co.uk
    

5Back to top Go down   Forks Stuck! Empty Re: Forks Stuck! Tue Jan 27, 2015 7:00 pm

Rick G

Rick G
admin
admin
If you have the top yoke off then clamp it to the leg so as to be able to twist it in the bottom yoke. It's always a problem of how to hold them without doing any damage.


__________________________________________________
"Man sacrifices his health in order to make money.
Then he sacrifices money to recuperate his health.
And then he is so anxious about the future that he does not enjoy the present; the result being that he does not live in the present or the future; he lives as if he is never going to die, and then dies having never really lived."   Dalai Lama


Bikes 1999 K1100 LT with a Big Block 1200
    

6Back to top Go down   Forks Stuck! Empty Re: Forks Stuck! Tue Jan 27, 2015 7:04 pm

Two Wheels Better

Two Wheels Better
Moderator
Moderator
bettyswolloks wrote:Knocked some wedges in I made at work from a hammer handle that was lying about, soaked the yokes with some diesel.

Still stuck fast!!!!
Which model? It helps to have the bike listed in your signature at the bottom. If 8V then it's one pinch bolt per side per triple clamp. 16V models use two per side per triple clamp. The 16V models also have a small aluminium wedge which the upper screws retain, but which can stop the clamps from spreading enough.

I had to get the top triple clamp off my 16V yesterday and it took a large 'soft' hammer and a block of wood to shake it free.


__________________________________________________
"A long ride is the answer to a question you will soon forget!" ~ Anonymous
1977 R75/7-100, '93 K11/K12 Big Block, '93 K1100RS, '95 R100 Mystic, '96 K1100RS, 2 x '98 K1200RS, '06 K1200R & '09 K1300GT
    

7Back to top Go down   Forks Stuck! Empty Re: Forks Stuck! Sat Feb 07, 2015 5:59 pm

bettyswolloks

bettyswolloks
active member
active member
FINALLY!!! Got the buggers off Smile

Took the top yoke off, had to be heavy handed with it to get it off. Then I had to hammer the buggers down, wood on top of them and I just hammered them HARD! They moved about 5mm with each blow, I'm a big fella with a 5lb lump hammer and it was still a fight, I also had some small wedges knocked into the gaps. When they got to be flush with the bottom yoke I had another battle on my hands, how do I get them past the bottom yoke? I could hit them as the top nut is not like a jap bike is it. So I got a socket extension bar and gave the bottom yoke a tap from bottom every time I tapped the fork leg moved down a little, and I mean a little 1mm at most! If I gave it a big hit it wouldn't move, so I had to tap it out. I would get one leg lower than the other and let the spring do some work, I left the fork brace on for this purpose. When they finally came off the amount of corrosion that caused the problem surprised Me, there was very little!!   

Anyway, the flipping things are off, they revealed head bearings that need replacing and raised a few more questions for you lovely people

Cheers Folks.
   Daz,

http://ranfog.co.uk
    

8Back to top Go down   Forks Stuck! Empty Re: Forks Stuck! Sun Feb 08, 2015 6:04 am

92KK 84WW Olaf

avatar
Life time member
Life time member
New head bearings and tyres last April had my RT feeling like it was on rails. Getting the forks out was same problem as yours too.


__________________________________________________
1992 K100LT 0193214 Bertha Blue 101,000 miles
1984 K100RT 0022575 Brutus Baja Red 578 bought 36,000 now 89,150 miles
1997 K1100LT 0188024 Wotan Mystic Red 689 58,645 now 106,950 miles Deceased.
1983 K100RS 0011157 Fricka 606 Alaska Blue 29,495 miles Damn K Pox Its a Bat outta Hell Now 58,200 miles. 
1996 K1100LT 0233004 Lohengrin Mystic Red 38,000 miles currently 51,800 miles.
1983 K100RS 0004449 Odette R100 colours 58,000 miles. Sprint fairing now 63,390 miles

Past:
1968 Yamaha 80 YG1
1971 Yamaha 125 YAS-1
1968 Honda 125 SS
1970 Honda CD 175
1973 Honda CB500-4
Honda CX 500
    

9Back to top Go down   Forks Stuck! Empty Re: Forks Stuck! Sun Feb 08, 2015 11:32 am

JGT

JGT
Platinum member
Platinum member
Wonder if the fork brace was the cause of your problem? Would have removed that first. John


__________________________________________________
1992 K75
    

10Back to top Go down   Forks Stuck! Empty Re: Forks Stuck! Sun Feb 08, 2015 2:29 pm

Jimish

Jimish
active member
active member
Yeah, I removed mine on the75 one at a time after failing to remove them as a pair.
Mine needed some serious walloping with a lump hammer and a piece of oak as a cushion.
The worst job was getting the stanchions out of the sliders though. I was sure I was doing some damage but they eventually came away by using the stanchions like a slide hammer. 
I've got one rebuilt now with new re chromed stanchion, support bushings and seals. Take a crack at the other one tomorrow. Must take some photos for you all to look at.

    

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