Crankshaft Pulley Socket Size

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06-14-2012, 08:16 PM

davbell22602

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Crankshaft Pulley Socket Size

1977 XJS 5.3L V12

What socket size for the crankshaft pulley bolt? I looked it up in the Jaguar Hertiage CD. All it has is 7/16, 1/2, 9/16, and 3/4 for spanner sizes for page 12-68. I was thinkin 3/4.

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06-14-2012, 08:46 PM

M90power

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im thinking 1&1/4"

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06-14-2012, 08:54 PM

davbell22602

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Quote:

Originally Posted by M90power

im thinking 1&1/4"

Do you mean 18mm?

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06-14-2012, 08:59 PM

M90power

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no.

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06-14-2012, 09:21 PM

davbell22602

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OK, 1 1/4in

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06-14-2012, 09:40 PM

Doug

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Pretty sure it's 1-5/16ths. Wish I could swear to it.

Seems to me that (at least) some V12s had a "turning plate" bolted to the pulley or balancer. This allowed the engine to be turned with a smaller wrench or socket....7/8ths, perhaps?

The actual bolt holding the balancer is below the "turning plate", if one is fitted.

Cheers
DD

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