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Thread: Signal/wiper cluster removal

  1. 01-05-2015, 02:54 PM #1
    Max (SD)
    Max (SD) is offline
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    Signal/wiper cluster removal

    The last item on the dismantling of my 1968 targa project is the removal of the signal/wiper cluster from the dash, it is held in place by three bolts two nuts appear right behind the instrument dial and one bolt under neath tucked below the dash from trunk side. The two bolts behind dials have normal nut probably 14mm one nut came out right away the second spins the bolt. Now for the bolts the head of the bolt is a perfect round head, nothing to hold on to. How are these removed?

    The third bolt the nut is perfectly round, is there a way to remove this with out attacking it with vice grips and destroying it.

    Thank you.
    S Registry #1280
    1970 911T
    1968 911 FWT
    1965 356 SC
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  2. 01-05-2015, 03:53 PM #2
    edmayo
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    If I remember right those are shear bolts, the head breaks off at the right torque at installation. You can use a chisel and get an edge started and turn them out by using the chisel with hammer blows. Or you might try cutting a slot in the head with a cut-off wheel and maybe turning them out with a straight tip screwdriver. A good test of creativity!
    Early S Registry member #90
    R Gruppe member #138
    Fort Worth Tx.
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  3. 01-05-2015, 05:16 PM #3
    rdelmendo
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    These sound like the sheer bolts, two long and one short. As Ed says, the hex head snaps off at a specific torque. I used a cut-off wheel to cut a slot in each of the round "heads" then used a screw driver to remove. I chased the threads and cleaned up the slots and added them to get yellow zinc plated. Each bolt is something silly, like $25 from Stoddard when I checked, so I reused...
    Cheers,

    Ron

    1961 356 Roadster Outlaw
    1969 911E ROW Coupe ‘Orangina’
    1968 911 SWT Burgundy Red project
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