Marzocchi Update on XC500 Crown!

Marzocchi Update on XC500 Crown!

What the internet and you Marzocchi maniacs probably don’t know is, that Marzocchi rebuild the XC500 crown from about 1994 in the XC600 design. I believe they did it because of a product improvements and they continued with the design in XC600, XC700, XCR and DH3.

No joke, no fake. Just look at the pictures!

I know about because over the years I had several n *100’s older Marzocchi fork in my hands and lucky me I have found 3 – 4 of this crowns in my boxes. They are in absolut best condition, NOS, never used!!

 

Marzocchi’s ZOKES

Marzocchi’s ZOKES

To be honest, I don’t know much about this forks. It is a elastomer fork with 24mm stanchions and Marzocchi buildt it around 1995/1996. 

Travel: ZOKES 2/ZOKES-PRO: 52 mm (2 inches), ZOKES TREKKING: 42 
mm (1.5 inches) 

Weight : 1.400 – 1.500 gr

I own 2 service boxes by accident, look at the pictures. The fork uses a standard 24mm Marzocchi oil seal. 

 

Damping is done by compact-polyurethane elastomer shims with varying hardness. MARZOCCHI supplies elastomers with varying hardness. Each type is color-coded :

                      • RED : medium hardness
                      • YELLOW : soft
                      • BLUE : hard

 

 

 

ZOKES-PRO has knobs on top of the stanchions to adjust increase or decrease preload, ZOKES 2 and ZOKES TREKKING turn the screw (332) inside the

There is a mechanical spring for rebound end of stroke in the fork (20-30mm). 

Looks like there is a conversion kit available to exchange the elastomer against springs : 

Manual :

Service Boxes :

Driver : 

 

Using good tools you can do good work!!  ;-)

Using good tools you can do good work!! ;-)

Well, over the years I had no good solution to clamp all the round parts (slider, stanchions, cartridges etc.) fork have for disassembling or assembling. Sometimes I won against a problem, sometimes I lost  part.
There are some very difficult cases like unscrewing the XC400 (and similar older forks from the XC Series) top screw units or unmounting the seals from a  Bombers slider, where you need a strong and suitable clamp. 

Another good example is a Bombers cartridge, if you want to unscrew the threadened head of a cardrige as I did it here. You seriouly can’t unscrew it without having such a tool, you will destroy the cartridge for sure! Here is a picture from such a condition using a Z1 rebound cartridge and a 8mm jaw set: 

[ngg src=”galleries” ids=”72″ display=”basic_thumbnail” override_thumbnail_settings=”1″ thumbnail_width=”300″ thumbnail_height=”240″ thumbnail_crop=”0″ images_per_page=”1″ number_of_columns=”1″]In most of this cases you can find a tricky suitable solution in your toolbox, using pieces of wood (drill holes in it, saw it etc.), wrap in cloth/plastik etc. pp. But from time to time for sure you will brake something.

I was happy to find this parts by accident and ordered a set in a minute as my Xmas present πŸ˜‰
I can tell you that this tools do the trick very well and as I use them almost in a daily matter I’m very happy to own them. Look at the pictures, you will nuderstand what I mean. The 2 basic parts are magnetic and hold themselfes in a vise. 

And for sure: I will break less things during my work using this tools …!

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Get defect Bomber Screws done!

Get defect Bomber Screws done!

You all know, sometimes you get badly stuck, if a screw get’s teared off or the allen screw head turned round. Most common for classic Marzocchi Bombers are the 4 screws, which holds the brace (arch, brake booster) on the left and right castings. 

Why does his happen?

Easy answer: the standard allen screws are glued in!

What can I do to avoid damage??

If you heat it up, bevor trying to unscrew it, in most cases everything went fine. And if you use an impact wrench, a sharp bit and you have cleaned the allen screw key head you can get it out in 95% of your cases. 

What can I do, if this fails??

Easy, if you own a good drilling and a welding machine, have look at the pictures. First drill the head from the allen screw off by drilling a 6mm hole in the center until the head breaks up, than weld a nut on the rest of the screw. During welding the screw will heat up stringly, that’s what you need exact to screw it easily out πŸ˜‰ 

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