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Enduro Suspension Tuning & maintenance of Enduro forks, shocks, etc |
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#231
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Good write up mate.
How do they feel now? Cheers Mark
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Xr 250 ( first bike) 98 Rmx 2007 Gas gas 300(swapped for trials bike) 2008 280 Raga replica 2012 Gas gas ec 300 E |
#232
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Had no time yet nor decent weather
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Vindicator '11 EC 300R |
#233
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Removed the compression piston and cleaned all the shims:
Backup the compression rod all the way out before removing the PFP adjuster. Used the 22 to hold the PFP shaft on the top and a 14(?) to unscrew it from lower part of the shaft Compression rod adjuster
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Vindicator '11 EC 300R |
#234
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Cartridge/PFP cap :
That circlip on the shaft is what stops the PFP inner top cap from compressing the spring any further. Not a good idea to force the PFP once it reached the maximum of its adjustment . Remove the circlip and use the octagonal cap tool to hold it and with a wrench on the PFP shaft unscrew it until the inner PFP cap threads are all out As you can see there is another circlip at the bottom. This one is responsible for holding the PFP adjuster from moving on the cartridge cap . It's very important to have this circlip set straight, besides holding the PFP adjuster it also stops the steel ball and spring from the compression clickers from falling and sets tension on the spring: Beneath the circlip there's a steel washer, once removed you just need to push up the PFP adjuster : I did not use any strong grease when putting it back together because this is all fitted with small tolerances and the grease just makes it very hard to adjust all the parts including the compression clickers. Instead I sprayed everything with Motorex's Joker .
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Vindicator '11 EC 300R Last edited by Vindicator; 01-12-2014 at 12:32 PM. |
#235
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The bushings on the PFP piston are done:
Is there a crossover for this ? I'm having a though time getting it from Marzocchi
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Vindicator '11 EC 300R |
#236
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Word of advice:
Whatever you do, do not over-tighten the PFP shaft ! It holds a circlip on the threads that is supposed to act has a stopper when tightening both halves, the threads are very fragile. In theory, when done properly, this should give you the 26 clicks on the compression adjuster, if not, you need to adjust : I think the engineers at Marzocchi could have come up with a less prone to mistake/damage solution than this...
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Vindicator '11 EC 300R Last edited by Vindicator; 01-13-2014 at 04:36 AM. |
#237
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Would it be appropriate to consider the PFP spring to be similar to a top out spring?
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#238
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Quote:
The PFP is Marzocchis equivalent to Yamaha and Showas ICS Spring, or WP/Ohlins N2 Charge (bladder/piston). The internal chamber basically follows the same principals as a shocky, using pressure to reduce cavitation. A shock uses a resevoir and nitrogen (either via a bladder or piston). The PFP does the same to thing to the cartridge. Now think of a shock running very low pressure, and then one running a higher pressure. What the PFP does is allow an external adjustment for the fork. |
#239
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I thought that too, but it came up in conversation whilst servicing some YZ125 forks.
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#240
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Hi everyone, I'm new to the marzocchi cc fork. I have a question. I was messing with my compression clickers to get a feel for adjustment and I realized that my left fork has 27 clicks and my right only has 21. I have done tons of research on this to no avail. Am I overlooking something simple? I am decent with suspension but I am definitely no expert. Any help would be gratefully accepted!!
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