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Topic: 38 mm Marzocchi oil level and info needed
suprf1y
Member
Posts: 22
38 mm Marzocchi oil level and info needed
on: August 7, 2012, 00:28

I swapped out the worn 35's from my 82 175 in favour of a set of 38's from a 250. A little bigger, better shape and a bit more travel.


I'm looking for the correct fluid, and fluid level. I drained 300 ml from each one, so I'm assuming that's in the ballpark. There doesn't appear to be much damping with the ATF I normally use, but in searching for this info, I've seen 20W oil recommended, and read that the Can-am version of these had very simple damping rods (precisely what I noticed when I had them apart). Also, if anybody has an assembly drawing, there's a washer and spacer in the bottom that I installed as it came apart, but looking at them I'm not sure what purpose they serve.

Thanks.


SW Ontario, Canada

suprf1y
Member
Posts: 22
Re: 38 mm Marzocchi oil level and info needed
on: August 25, 2012, 20:45

Well I got some info from another Can-am nut. It's from the MX6, so I hope it's relevant. I haven't had a chance to ride it yet, but using ATF, there does not appear to be a great deal of damping. According to the info, the forks were probably at least 100 ml low on oil, so I would be too. Maybe that's the cause of the reduced damping.


Round 4 of our local vintage series in 2 weeks. I'd better get some testing done!


SW Ontario, Canada

suprf1y
Member
Posts: 22
Re: 38 mm Marzocchi oil level and info needed
on: August 25, 2012, 20:48

If anybody else has any info on these (82 Qualifier 250) forks, I'm all ears.


SW Ontario, Canada

Chris
Administrator
Posts: 40
Re: 38 mm Marzocchi oil level and info needed
on: August 26, 2012, 07:10

Two issues come to mind: Enduro and MX forks are often different in both thier action and travel length. Therefore the amount of oil and weight will vary. You need to know what the forks are off to be able to assess the damping and oil level. For 38/40mm forks I would say the oil level is more likely to be nearer 400mm – which confirm your own thoughts. And should be 10W in weight although 20W would be okay. Try it to see what happens with the damping. As for the washer etc I'm not sure. Marzocchi forks often have strange things like this, as per the helper springs in 125 forks.


Chris
Administrator
Posts: 40
Re: 38 mm Marzocchi oil level and info needed
on: August 26, 2012, 07:12

And I look forward to the race report! Photo's of the trophies etc!!


suprf1y
Member
Posts: 22
Re: 38 mm Marzocchi oil level and info needed
on: August 26, 2012, 11:47

The forks came from another 82 Qualifier, but 250, to replace the smaller (and beat) units on my 175. The drawing I got (from Fabrice) verified that everything was in the correct place, but because it was for the previous years MX models, I assumed there would be some differences. What they are, I'm not sure. If you have any 82 info, that would be a great help.


From a few weeks ago. The Q IV is pretty strong in post vintage.





This is a fun group of guys, and we're very well represented. I was going to send you some race reports, and pics of the many other Can-ams, but this was my only chance to race with them this year.


SW Ontario, Canada

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