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How to change fork seals per manual
Possibly he used the amount set out in the Honda manual. If you find that the suspension is stiff you can always remove some using the drain plug. Just a little at a time.
I did measure mine, I had the forks on the bench to do the job. I prefer to do my own maintenance on my bike this way if anything quits while on the road, I am familiar with the bike and it's foibles. I never did find a mechanic who would give my bike the TLC it deserves, and who would work at the prices I would charge myself Smile Smile
It's when you know things about the bike in general and ask questions you realize not many of them have a bloody clue :roll:
The only stupid questions are the one's that are not asked.

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#16 02-06-2008, 09:25 AM,
RustyTheDog Wrote:
tricky Wrote:If using Progressive springs use their leaflet as to filling the forks with oil

Uh oh. Hmmmm...

You may have read that I just sold a set of Progressive springs because my bike already had them. A mechanic rebuilt the forks. He's no dummy, but my instruction sheet went with the set that I sold. In general I know he has been referring to the service manual for other things. He even noted to me how many CC's the right fork was missing so I know he was paying attention to the volume of oil. (The right one had a blown seal and had a big leak.) He rebuilds forks all the time.

BUT, that part of the work is already done. Since I know he didn't have the sheet, what are the odds he put the right amount of oil in (by eyeballing it I guess) and how much does it matter?

Too much oil and the shock can actually top out because there's no room for the oil to go on compression. Too little oil and the shocks can suck air and foam up causing a loss of damping. It's got to be just the right amount within a few cc's dependending on the circumstances.
Ed (Vic) Belanger - 1954-2015
Founder of gl1200goldwings.com

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#17 02-06-2008, 10:31 AM,
Thanks to you both.

I guess the next obvious question is: What does the Progressive instruction sheet say is the right amount?

[Edit: The answer is 5.5" to 6" from the top... Unfortunately not expressed in terms of volume so it's not clear how much to drain if it has been filled per the manual.]
Paul
'86 SEi
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#18 02-06-2008, 11:24 AM,
Paul, Maybe it was not the first time for ur mechanic to install progressive sprinngs on a gw ;P
------

Well.. i got that nasty bolt out. Big Grin ill post pics and details in my thread. i have a couple of questions:

the bolt ill replace it. the Washer is stuck to the bolt, what should i do?.. what material is it made?

How do i clean the inside?, there seems to be a lot of dirt inside. it was almost empty. no oil at all on the left fork. ( havent done the other one yet) i am not sude if i should remove the anti-dive thing cuz seals may break in the attempt.

other question... local bike dealers only sell oil 5W, 10W AND 20W

20 will do ok?
85' GL 1200 Interstate - My Picture Thread
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#19 02-06-2008, 11:26 AM,
just use atf..... I bet you haven't tried to screw the cap back on yet.... well, it is a challenge :evil: what I did was take a 2x4 and drill I hole for the extension on my stocket. my helper/so appleis downward pressure on the 2x4 socket and cap while I carefully engaged it... do be careful as it is a fine thread and therefore easy to strip
78 GL1000 (original owner), 86 1200 with motorvation sidecar (wife's), 05 Road King, and 75 frame and lots of parts
state map: "Lots"-all states if you indlude all my bikes
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#20 02-06-2008, 12:50 PM,
William, this isn't a complete answer for you, but check this instruction sheet for the springs:

http://www.progressivesuspension.com/pdf...s/3055.pdf

Read section 2, and also "Fine Tuning" on the second page which references oil weight. Smarter folks than me may have more detail.

------------

Regarding my question about the oil capacity difference, I am sure the mechanic used the service manual. I called their support line which only reinforced what the sheet says: 5.5 to 6 inches from the top of the tube with springs removed. There's no way to convert that, from service manual's capacity of 345cc's UNLESS I can calculate the total volume of the tube using high school geometry.

So with this in mind, can anyone tell me the inside diameter, and also the length of a collapsed tube (bottomed out with no springs), when measured to the top of the threads at the cap?

If I had that info, I could determine the difference in volume to drain from the bottom, which would be a whole lot easier than opening the top.
Paul
'86 SEi
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#21 02-06-2008, 12:59 PM,
the spring cap wont be that hard, :p. already removed both caps, and unassembled both forks. the right side one was ok, the oil was clean, not like the left leg, it had DIRT inside! those seals were badly damaged. and also the antidive adjustment was sed to 1 on the right one and 3 on the left.

What shall i use to clean everything up before assembling?? petrol will do fine?
85' GL 1200 Interstate - My Picture Thread
[Image: signaturebg4.jpg]
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#22 02-06-2008, 02:02 PM,
I was putting progresive springs back in, so the added umph sure helped... I had put on progressives becaus e the bike has a sidecar
78 GL1000 (original owner), 86 1200 with motorvation sidecar (wife's), 05 Road King, and 75 frame and lots of parts
state map: "Lots"-all states if you indlude all my bikes
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#23 02-06-2008, 02:08 PM,
while was down there i noticed this rubber parts are worn. it never leaked there but should i try to get the replacements?. rubber parts: B and D. (seat and boot, i think the boot one is the most worn one o.o

[Image: antidivetm4.jpg]
85' GL 1200 Interstate - My Picture Thread
[Image: signaturebg4.jpg]
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#24 02-06-2008, 03:09 PM,
They are dust boots, if you want the dirt to stay out then replace.
Possibly the rubber has perished. While your in the area check on the condition of the dust boots on the brake calipers, they will possibly be in the same condition,
The only stupid questions are the one's that are not asked.

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#25 02-06-2008, 04:42 PM,
yes. the brake boots are the sameway
85' GL 1200 Interstate - My Picture Thread
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#26 02-06-2008, 04:54 PM,
you might also slide out the pin that allows the brakes to "float"... I found the one on my 86 was all rusted up
78 GL1000 (original owner), 86 1200 with motorvation sidecar (wife's), 05 Road King, and 75 frame and lots of parts
state map: "Lots"-all states if you indlude all my bikes
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#27 02-07-2008, 06:15 AM,
i went for a ride, 1 and a half hour ride, and noticed oil leaking from the left fork :'( what should i do?. i added about 9-10psi of air, checked and only had 5 psi
85' GL 1200 Interstate - My Picture Thread
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#28 02-08-2008, 01:20 AM,
If you have oil leaking from the fork then the seal isnt doing it's job. It is either damaged or installed incorrectly.
If the fork leg has nicks or is damaged then this can cause the seal to leak.
The only stupid questions are the one's that are not asked.

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#29 02-08-2008, 06:18 AM,
both seals are brand new, installed them as described on the note in the seal bag, with the branding number to the top, and thats the way the old seals were installed, the fork tube seemed to be ok, is there something i can do to fix this leak or the seal must be replaced again?
85' GL 1200 Interstate - My Picture Thread
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#30 02-08-2008, 10:48 AM,


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