Spider Clutch Replacement (Was: Clutchy Goodness)

["Mark Lee" <mlee@xxxxxxxxxxxxxxxxxxxx>]

Hello All,

 

A recent thread brought out a point about clutches that's important to
reiterate: a proper clutch replacement includes refinishing the
flywheel. Given the time and effort (or cost) it takes to get to the
clutch, it's false economy not to do this when it's all apart. In fact,
many clutch warranties, including IAP's, are not valid unless the
flywheel is resurfaced at the time of installation.

 

As most of you probably know, the 2-liter Alfa flywheel has an unusual,
stepped shoulder where the pressure plate mounts (or, if you like, it
has a recessed friction surface). Any time the flywheel is refinished,
the shop needs to maintain the correct relationship between these two
planes. Alfa's spec is 22.5mm +/- 0.2mm for this depth. To machine the
shoulder, they need to pull out the locating dowel pins.

 

Note that failure to maintain this simple but critical relationship will
result in a "softer" pedal, higher engagement point, or slipping.

 

And, don't forget to replace the rear main seal while the flywheel's
off; a leaky rear main seal can cause slippage, too.

 

Off my soapbox now <g>.

 

Cheers,

 

Mark Lee

International Auto Parts
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