Help needed - Marzocchi strip down

[Dodge]

How do you strip down these Marzocchi shocks on a Mark3? I have had a bad experience dismantling things with springs in! The piskies have never returned the spring from an Amal carb that disappeared into a pile of scrap in my garage.
I presume you have to compress the spring somehow but I was expecting to see some sort of retaining clip. I have seen replacement springs for sale, so I know that the shocks do come apart but how?

[blethermaskite]

Hi,
So these shocks are held together by the spring preload adjuster system at the bottom of the unit, you have a bottom sleeve with the adjuster wire handle, then you have a top sleeve above this under the bottom of the spring, if you compress the spring under this top sleeve there are three ball bearings that run in a rising track in the shock body to facilitate preload adjustment....but these three ball bearings also retain the spring, so with the spring compressed and the top sleeve raised the balls will fall out and the spring is free to remove. Long ago I made a spring compressor for ducati rear shock springs utilising a heavy duty silicone cartridge skeleton driver gun, just cut a segment out of the front flange of the skeleton gun big enough to slip through the bottom coils of the spring and big enough to clear the shock body, put a rubber pad on the plate end of the driver rod to save damaging the top of the shock mounting eye ..........ratchet the skeleton gun up just as with a cartridge fitted and this will compress the spring ......works a treat just be careful to use a well made skeleton gun, a cheap rubbish one will just break unexpectedly and possibly injure you
Cheers,
George

[themoudie]

Aye Dodge,

For parts try: http://www.suspensionzana.com/index.php?option=com_content&view=featured&Itemid=105

This link takes you directlty to the English language pages and I understand that they have all the overhaul kits for these shock absorbers.

My information comes from Mark, the Membership Secretary of the Morini Riders Club. Ironically, there is a similar query on their forum that was posted today!

George I have shared your spring compressor details with a man from Devon on the MRC forum, as he dismantled one rear shock using "baler twine and two screwdrivers"! Bit of the old you scratch my forum and I'll scratch yours! Thanks for posting.

Good health, Bill

[themoudie]

Aye Dodge,

Further info from the MRC forum that might be of use, courtesy of "P&S". This is a link to a pdf manual for Marzocchi A73 and Euro 74 rear shock absorbers.

https://www.rpw.it/Files/Marzocchi%20A73%20Euro74%20UEM.pdf

My regards, Bill

[themoudie]

Aye Dodge,

My attention has been drawn to yet more information on stripping and rebuilding Marzocchi rear shocks by "P&S" on the Morini Riders Club forum.

Here is the link: https://motomoriniclub.forumcommunity.net/?t=56189893

To translate the Italian text, copy and paste into 'Google Translate'.

I hope this further helps you.

My regards, Bill

[Dodge]

Thanks for all the help. I succeeded in dismantling one Marzocchi using an arrangement of two sash cramps and some jubilee clips. I was unsure about trashing my one decent silicone cartridge skeleton driver gun. However, I fear I may have to when I come to the reassembly.