Slider bushing removal


Information and questions on GL1200 Goldwings (1984-1987)
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twocams
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Motorcycle: 1985 GL1200 Aspencade, 2003 K1200GT BMW, 1969 R69S BMW
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Slider bushing removal

Postby twocams » Sat Mar 05, 2016 12:56 pm



For those of you that have taken the sliders off not the whole fork tube. There are 2 tube bushings at the very end of the piston still on the bike. Do those need to come off for the seal to be slid up into place? i took the slider bushing off and spacer ( big washer). Dont know if seal will get damaged forcing over the fork tube bushings. :? Thanks

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twocams
Posts: 554
Joined: Tue Sep 29, 2015 11:25 am
Location: Grants Pass, Oregon
Motorcycle: 1985 GL1200 Aspencade, 2003 K1200GT BMW, 1969 R69S BMW
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Re: Slider bushing removal

Postby twocams » Sun Mar 06, 2016 1:34 am

Any body replace the front fork seals?

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thompsoj22
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Location: Ridgecrest CA
Motorcycle: 1986 Honda Goldwing GL1200I

Re: Slider bushing removal

Postby thompsoj22 » Sun Mar 06, 2016 9:07 am

man, I don't think I would attempt to install from the bottom. your almost there! I did mine on an 86I and the fork spring pressure is nothing to fear. simply use a half inch drive ratchet and a socket with an extension and wind the cap loose. as you get close to the cap coming out be leaning on the ratchet sufficiently to keep the spring compressed and control the release. loosen the upper/lower pinch bolts and remove the fork brace, slide one tube out at a time and install the new seals from the top!. to install the fork cap mark the beginning thread on the cap and the tube with a marker, clock the cap in the ratchet so you know exactly where the threads will engage and apply downward force til the cap contacts the tube and rotate the ratchet. it will install, it wont strip and youll be done. don't forget to remove the packings on the air equalizer assy, two per side. clean the grooves and packings and reinstall with Vaseline. don't spread/remove the sliders unless your replacing them. oops just read your post and the bushing is already off, just gently reinstall and down the road youll go!

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twocams
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Motorcycle: 1985 GL1200 Aspencade, 2003 K1200GT BMW, 1969 R69S BMW
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Re: Slider bushing removal

Postby twocams » Sun Mar 06, 2016 2:35 pm

Thanks thompso,
I didnt want to go through all that. But I see your point. I just had an operation and should not do much.

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thompsoj22
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Motorcycle: 1986 Honda Goldwing GL1200I

Re: Slider bushing removal

Postby thompsoj22 » Sun Mar 06, 2016 5:51 pm

did you get the old seals off from the bottom? if they somehow can be removed without to much force than you probably could install new ones the same way. iv just never done it, and the bottom of the top tube is flanged so it's going to be tricky. it would be soooo much easier if it works, wrap the bottom of the tube with electrical tape with almost zero overlap so as not to increase diameter and oil the seal up and let us know if it can be done.

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twocams
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Motorcycle: 1985 GL1200 Aspencade, 2003 K1200GT BMW, 1969 R69S BMW
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Re: Slider bushing removal

Postby twocams » Sun Mar 06, 2016 6:55 pm

I took the slider bushings off. I know the book says not to remove unless replacing....well guess what. I just used a screwdriver and spread just enough to remove. Put the dust seal on and new oil seal on. Filled the sliders with oil. But will only hold 7 oz of oil. :o Letting it set overnight hoping it equalize and go up the tube...if not. I'll have to seat the seal and take the top plug off (watch the spring) and put the remaining 4.7 oz. of oil through top. Just doing one side at time so may have to improvise on the other side. :?

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thompsoj22
Posts: 55
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Location: Ridgecrest CA
Motorcycle: 1986 Honda Goldwing GL1200I

Re: Slider bushing removal

Postby thompsoj22 » Mon Mar 07, 2016 7:48 am

youll be working against spring pressure on the install of the lower leg when you seat the seal and install the snap ring, im guessing a jack under the leg to put it deep enough in it's travel to allow the seal/snap ring install. If the seal/snap ring is to much of a fight don't fear the fork cap! you have still saved all the time on upper leg removal! I think the critical aspect of fork fluid is being equal as opposed to full.

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twocams
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Motorcycle: 1985 GL1200 Aspencade, 2003 K1200GT BMW, 1969 R69S BMW
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Re: Slider bushing removal

Postby twocams » Wed Mar 09, 2016 1:27 pm

OK the forks are rebuilt. I just took the sliders off and removed all 3 bushings, 2 fork tube bushing and 1 slider bushing each side. Book says not to remove unless replacing. Just be careful and only spread enough to remove. Have some new ones handy if you're afraid, I didnt. But bike only has 30,000 miles. The first leg took me about 2 hrs but the second one took about 30 min.once I figured out what I was doing. :lol: I just held the slider up by hand with new parts in place and bushings on. The hard part was getting the slider bushing ( big one) to seat in the slider. It's a press fit, thats where the 1 1/4" PVC pipe comes in. I used a T coupler and cut in half, there is a ridge inside that I used a dremel and sandpaper on to remove. Its also used to seat the new seal. If you use the pvc and tap hard on the big spacer that's on top of slider bushing, Turning the slider by hand round and round to make sure the bushing is square in the slider. The bottom drain bolt is not in the slider. Make sure the bushing and spacer are far enough down in the slider so the seal and snap ring will fit. I didnt the first time. Now I just pushed the whole assembled slider up the fork tube and put the drain bolt in with a little blue loctite on the head end threads, torque to 15 ft lbs. The last thing I did was slid the top dust seal down and into place. The forks will be filled with trans fluid from the top where the fork springs are.
While I had the sliders off I replaced 2 "O" rings on each leg where the caliper pivot bolts go. Had new rubbers to replace where the lower caliper bracket mounts. Now the big question....will they leak? What ever way its done the true test is to get it on the road and "ride like the wind" or is that in the wind. :D

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thompsoj22
Posts: 55
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Location: Ridgecrest CA
Motorcycle: 1986 Honda Goldwing GL1200I

Re: Slider bushing removal

Postby thompsoj22 » Thu Mar 10, 2016 8:07 am

congrats on the "expedited" method of seal replacement. however to make this process truly better than upper leg/spring cap removal could you have filled the lowers with the correct amount of fluid by plugging the lower slider bolt hole with a rubber plug and than somehow installed the bolt during assy without losing significant fluid?. or will the lowers just not hold all the fluid by themselves for a complete refill?. if this could be done you have just made fork seal replacement a two hour job!

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twocams
Posts: 554
Joined: Tue Sep 29, 2015 11:25 am
Location: Grants Pass, Oregon
Motorcycle: 1985 GL1200 Aspencade, 2003 K1200GT BMW, 1969 R69S BMW
Sold : 84 V65 Magna, 82 Moto Guzzi, XS 1100 Yamaha,84 Wing Int., 80 650 Special, Only new bike 82 XV750 Virago (Guam),Honda 250,84 R100RT BMW,87 K100 LT BMW,93 K1100 LT BMW, 91 535 Virago, Honda 50

Re: Slider bushing removal

Postby twocams » Thu Mar 10, 2016 11:22 am

Well as stated before I could only get 7oz. in the slider. Let set over nite hoping it would equalize into the fork tube. But the shop is only 40 deg. maybe on a nice hot day (90) the fluid would thin out enough to flow up the fork tube some :?:

Do you know how far above the fork tube the spring is after the cap is remover?

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julimike54
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Re: Slider bushing removal

Postby julimike54 » Fri Mar 11, 2016 12:05 pm

It's been a while & didn't measure, but maybe a couple inches?


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