Sunday, June 5, 2011

Clutch and Gearbox Disassembly

The clutch housing is held on by a few Allen heads and is easily removed. A sharp tap with a rubber mallet overcomes gasket stiction. You need to remove the clutch altogether in orderto take the primary drive off the transmission however. Remove these three bolts:



And pull out the clutch. A sharp tap with the aforementioned rubber mallet gets it out.


This is the clutch housing seal:


Now to remove the gearbox cover. First remove all the Allen bolts holding the end of the transmission onto the main housing. Then you must insert the clutch, next to the primary drive, like so:


Now Moto Guzzi will sell you a tool that grips the splined shaft of the clutch, so you can hold it steady while undoing the primary drive mounting bolt. Moto International suggested putting a penny between the gears to jam them, the idea being that the soft penny takes all the damage. Rodekyll on the WildGuzzi forum suggested using a copper washer as it is even soften (pennies are quite hard). So a copper washer was duly used:


And off comes the transmission bolt, with no damage to the gears! Thanks guys!


The transmission itself looks in great shape:




Note the spling-loaded plug used as the gearbox vent:



2 comments:

  1. bello, I am trying to get my clutchbox cover off the gearbox after removing all Allen head screws, it came loose, separated from the gearbox, but only about 5mm, itseems like something is stopping the main drive cone out, thus. annot remove the clutch box from the gearbox.

    can you give me any tip on that?

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    Replies
    1. it seems like the lower bearing in the box is fixed on the primary drive shaft and the secondary gear blocks this to come out, therefore the main shaft ia not comming out... any idea?

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