Is there a quick and dirty way to do fork seals without a press?
in [Tech]
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From: Ted Mittelstaedt on 28 Jun 2006 09:20 Hi All, I have a leaking fork seal on my '80 CB750K and the manual shows the procedure for replacing it - but it requires use of a press plus a "spring installation tool" to put the fork back together. I assume the spring is strong enough that trying to manhandle it together would be impossible. I don't have a press as large as what would be needed. Is there a way to reassemble the fork without using a press or is this a job that you can't do without using one? Ted
From: FB on 28 Jun 2006 09:38 Ted Mittelstaedt wrote: > Hi All, > > I have a leaking fork seal on my '80 CB750K and the manual shows > the procedure for replacing it - but it requires use of a press plus a > "spring installation tool" to put the fork back together. I assume the > spring is strong enough that trying to manhandle it together would be > impossible. Wrong on both counts. Does google work for you? The simple pragmatic answers are right here in this NG, they've been posted over and over.
From: Scott on 28 Jun 2006 16:15 On Wed, 28 Jun 2006 06:20:15 -0700, "Ted Mittelstaedt" <tedm(a)toybox.placo.com> wrote: > I have a leaking fork seal on my '80 CB750K and the manual shows >the procedure for replacing it - but it requires use of a press plus a >"spring installation tool" to put the fork back together. I assume the >spring is strong enough that trying to manhandle it together would be >impossible. I don't have a press as large as what would be needed. >Is there a way to reassemble the fork without using a press or is >this a job that you can't do without using one? Here are some sites that I found useful when I rebuilt my forks: http://www.motorcycle.com/mo/mcnuts/forkseal.html http://www.motorcyclecruiser.com/tech/replace_fork_seals/ http://www.nobugs.org/bike/forkseal.html -Scott -- '73 CB450K '82 CB900F (x2) '04 FSC600 (SWMBO)
From: Ted Mittelstaedt on 29 Jun 2006 05:17 "Scott" <nobody(a)xmission.com> wrote in message news:44a2e231.151959015(a)localhost... > On Wed, 28 Jun 2006 06:20:15 -0700, "Ted Mittelstaedt" > <tedm(a)toybox.placo.com> wrote: > > > I have a leaking fork seal on my '80 CB750K and the manual shows > >the procedure for replacing it - but it requires use of a press plus a > >"spring installation tool" to put the fork back together. I assume the > >spring is strong enough that trying to manhandle it together would be > >impossible. I don't have a press as large as what would be needed. > >Is there a way to reassemble the fork without using a press or is > >this a job that you can't do without using one? > > Here are some sites that I found useful when I rebuilt my forks: > > http://www.motorcycle.com/mo/mcnuts/forkseal.html > http://www.motorcyclecruiser.com/tech/replace_fork_seals/ These are worthless. They are basically online versions of a procedure out of a Haynes or Clymer manual, generic one-size-fits-all ones. It's not that the overall procedure is bad, it's that none of the details specific to my fork is included. Keep in mind I'm working on a 26 year old bike, not a 5 or 10 year old bike like what was used for these articles. > http://www.nobugs.org/bike/forkseal.html > This one is good, but it's not the same bike model. The water trick is a great idea. Note particularly the sentence: "...Usually, people recommend putting the lower leg into a vice and pulling hard on the fork tube. This didn't work for me. Now that I've seen the disassembled fork, I don't see how this could possibly work on a CB500 fork. The two bushings just get wedged together...." In other words, according to the author of the 3rd article, the procedure listed in the first 2 articles wouldn't have worked. If your going to deviate from the FSM, and I have plenty of times in the past on a number of vehicles, the details of how you go about doing that are very important, that is usually where generic how-to articles fall down, and it's why I never work on a vehicle anymore without a FSM. Thank you though for the links, the water idea was worth wading through them. Ted
From: Ted Mittelstaedt on 29 Jun 2006 05:26
"FB" <flying_booger(a)yahoo.com> wrote in message news:1151501932.088646.190130(a)d56g2000cwd.googlegroups.com... > > Ted Mittelstaedt wrote: > > Hi All, > > > > I have a leaking fork seal on my '80 CB750K and the manual shows > > the procedure for replacing it - but it requires use of a press plus a > > "spring installation tool" to put the fork back together. I assume the > > spring is strong enough that trying to manhandle it together would be > > impossible. > > Wrong on both counts. If you don't believe the factory manual lists a press as a requirement I will post a scan of the relevant page. That count I'm definitely right on. Sheesh! > Does google work for you? The simple pragmatic > answers are right here in this NG, they've been posted over and over. > I wasn't looking for a step by step guide, I already have that. Frankly the DOHC CB750s were kind of a little slice in between the SOHC 750's and the later Nighthawks and such. It doesen't appear they were that popular, most motorcycle histories seem to ignore them, and cross references are surprisingly wrong about them - for example if I see yet another manufacturers cross reference that claims the same air filter fits in the 1978 and prior CB750's as what fits in the 1979 and later CB750's I'm going to scream. Honda did carry some parts from the SOHC bikes forward, but I have run into plenty besides the engine that is different, and I'm not going to assume that Honda didn't screw with the forks also. Ted |