[Spridgets] 1500 Fan Clutch question

[Peter Caldwell]

If all you installed was the clutch and blades, you missed the "one 
time use only" crush ring.  Moss 071-239 It is a corrugated collar 
that deforms when the clutch is pressed on. Meant to lock it. But.... 
if that was installed NEW, then there must be another issue.
    The set up from an earlier year Spitfire with clutch fan is often used.
         Peter C
====
At 07:02 AM 7/27/2010, David Booker wrote:
>My friend put a new fan clutch and water pump on his 1500 Midget this weekend.
>The clutch went onto the pump shaft via his press, feeling what he thought was
>properly "snug" during the process. Everything went back in fine, using all
>the
>proper parts (there's apparently a crush washer in there somewhere, but
>I've
>never worked on one of these so don't know).  A few miles later when
>everything
>was nice and warm, the fan went into the radiator...
>
>He wants to
>know if this is a common occurance.  The pump and clutch both came
>from Mo$$.
>Anybody have suggestions for a fix? JB Weld on the shaft when
>reassembling?
>Drill and tap threads into the waterpump shaft, then lock on with
>a bolt and
>washer? Other ideas?
>
>He didn't like my suggestion of throwing the whole thing
>away and installing a
>thermostatically-controlled electric fan as he fears
>the alternator is not up to
>the task...
>
>Thanks,
>  - David Booker