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do i need new fork seals?

Posted: Thu Apr 16, 2009 7:24 pm
by paso_rosso
not sure what i need but the fork oil leaked through the damper adjustment knob assembly :dunno:

Image

Re: do i need new fork seals?

Posted: Thu Apr 16, 2009 7:28 pm
by Finnpaso
Rebuild that damper adjuster and maybe same time better also change new oil seals and dust scrapers to forks !!! :thumbup:

Btw, also very dangerous, as it have leaked to rotor and brake pad.....

Re: do i need new fork seals?

Posted: Thu Apr 16, 2009 8:25 pm
by paso_rosso
i take it the m1r manual will be able to help with the rebuild??
fork seals were done less than 3 years ago.
during that time the bike had very little use.
should i still do them? it is not something i have done before.
seals are not easy to come by. local duc dealer hasn't had any in ages.
i also have new rotors, so a brake job is in order.

Re: do i need new fork seals?

Posted: Thu Apr 16, 2009 8:27 pm
by paso750
to take the adjuster apart you don`t have to remove it from the fork leg if you don`t want to. Let the oil from the fork leg first. You find the M1R manual in the downloads.

Re: do i need new fork seals?

Posted: Thu Apr 16, 2009 8:34 pm
by paso750
3 years can be quite a bit if the bike wasn`t used. Sometimes seals last long, sometimes not even a year.
The original size of the sales is 41,7-55-10/10,5mm (inner diameter-outer diameter-height/height of seal lip). With this info you should be able to find them. Just check different bike part suppliers. There there will probably be quite a bit cheaper than from your Duc dealer. Dust selas can still be ordered via your Duc dealer, or check ebay.

G.

Re: do i need new fork seals?

Posted: Thu Apr 16, 2009 10:15 pm
by paso_rosso
i will be pouring over the manual this weekend!
many thanks!

Re: do i need new fork seals?

Posted: Thu Apr 16, 2009 11:09 pm
by jcslocum
paso_rosso wrote:i local duc dealer hasn't had any in ages.

Call Miles at BCM in NH. He'll get you waht you need if it's still made.

Re: do i need new fork seals?

Posted: Fri Apr 17, 2009 12:13 am
by paso_rosso
thanks!!
no one around here wants to work a paso. or they will in the winter when they are bored.
good thing i am mechanically inclined... :banghead:

Re: do i need new fork seals?

Posted: Fri Apr 17, 2009 12:55 am
by Kurt
paso_rosso wrote:thanks!!
no one around here wants to work a paso. or they will in the winter when they are bored.
good thing i am mechanically inclined... :banghead:
If there's work you don't want to tackle yourself, try Al Arbor, service manager at Great Bay MC in North Hampton NH (Duc/Tri dealer). He had decades of Duc experience, he offered to work on my 907.

Looks like we're neighbors, I'm in Arlington, like 3 miles away. How 'bout a Paso meet-up some weekend at MotoMarket?

And Sam, do you have yours back together? That would make three - anyone else in the neighborhood?

Re: do i need new fork seals?

Posted: Fri Apr 17, 2009 2:50 am
by paso_rosso
i hope we can meet up, kurt!
the paso is in quincy (it's current home) getting 'road ready'.
this fork thing is a bugger.
then a brake job, then the electrics upgrade.
and it was running so well last fall, too!

Re: do i need new fork seals?

Posted: Sat Apr 18, 2009 9:31 pm
by paso_rosso
i have seen these for a while on ebay.
anybody have experience with them? should i get them??

http://tinyurl.com/cvmq2g

Re: do i need new fork seals?

Posted: Sun Apr 19, 2009 11:45 pm
by whitepaso
This is what the guts of your fork damper adjuster looks like:

Image

Do you see the black o-ring in the photo? That's the culprit. It goes into the groove of the red component pictured immediately below it and it seals the oil in. My forks had not ever been apart under my ownership (14 years) and there was a lot of filth on all of the fork internals but my damper didn't leak; I just took everything apart when I replaced the fork seals and dust wipers and thoroughly cleaned everything, including this damper. NAPA auto stores should have a metric o-ring replacement for this.

As for the fork seals themselves, you can order exact duplicates (even made by same company as the Ducati part) from Parts Unlimited. Their part number is 0407-0128 and their size is 41.7 mm x 55 mm x 10/10.5 mm. Will run you about $8-10. Dust wipers are still available from Ducati, part number 000048396. They were about $30 I think.

If your mechanically inclined, you can do this whole job yourself. Good luck!

Tom

Re: do i need new fork seals?

Posted: Mon Apr 20, 2009 5:49 am
by Fraser
Hey paso_rosso,

Try these fork seals http://www.motohaus.com/html/seals/leak ... 0intro.htm
Got some 4 years ago (not sure if it was from this site) and they are very good, also quite cheap.
Cheers,

Fraser.

Re: do i need new fork seals?

Posted: Tue Apr 28, 2009 6:52 pm
by paso_rosso
many thanks again for links and pics everyone.
nothing to report yet as i have yet to tackle this!

cheers