Fork Seal Replacement Issue

Information and questions on GL1800 Goldwings (2001-Present)
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Posts: 1
Joined: Tue Apr 05, 2016 6:25 pm
Location: Wichita Falls, TX
Motorcycle: 2002 Goldwing

Fork Seal Replacement Issue

Post by WadeScarbrough » Sat Jan 06, 2018 6:11 pm

Following a utube video on removing the bottom bolts (drain) of my forks, I used an impact driver to break free the bolts. The left fork (with dive brake) bolt broke loose and came out without an issue. However, the right fork bottom piston began spinning and the bolt would not come out. After along time of drilling out the bolt, I was finally able to disassemble the fork assembly to find the bolt itself still tightly secured in the threaded hole. I was told by a local motorcycle mechanic that I needed to have used a rapid spin air wrench to get the bolt out. Does this sound correct? Is the piston in the bottom of the fork supposed to be free to spin? I’m concerned about reassembly if he piston begins to spin before the bolt tightens against the copper crush washer. Again, the mechanic advised a rapid spin wrench would tighten the piston to the bottom of the fork tube before it could have a chance to spin out. Also,the 8mm x 1.75mm bolt that is shown as the size bolt used seems to bottom out in the threaded hole before it can be tightened against the washer. Any advice would be apprecoated.

Posts: 26
Joined: Fri Jan 02, 2015 7:28 pm
Location: Amity. Ar
Motorcycle: 2010 GL1800
2004 Suzuki DR200

Re: Fork Seal Replacement Issue

Post by DaveO430 » Sun Jan 14, 2018 6:15 pm

Sometimes there is more friction in the threads than there is in the piston it screws into and you get that problem. Honda says use loctite on the threads but that is a bad idea. And yes an electric or air impact helps. Usually helps to have the spring installed when removing the bolt. That is an 8x1.25x27, not 8x1.75. The correct bolt will not bottom out before it tightens.

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