Cylinder head bolt order + size?

Hey group,

What's the correct order to loosen cylinder head (not cam cover) bolts?

Are the bolts 12mm?

Steven

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Steven Spits wrote:
> Hey group,
>
> What's the correct order to loosen cylinder head (not cam cover)
> bolts?
>
> Are the bolts 12mm?
>

According to the Enthusiast's Manual, there are 10 12mm bolts.
Quoting from the manual: "Caution! The bolts must be loosened in a
sequence which spirals inward from the outer bolts of the head - this
minimizes distortion. Initially loosen each bolt half a turn, then a
whole turn, followed by full removal. A 125mm/5inch extension will be
needed with the socket as the bolts are quite deeply recessed in the
cambox."

The workshop manual has a diagram showing removal of the bolts in the
following order:

3 7 10 6 2

4 8 9 5 1



Hope that helps.

Iva & Belle.)
'90B Classic Red.)
#3 winkin' Miata

Iva wrote:

> The workshop manual has a diagram showing removal of the bolts in the
> following order:

Perfect, thanks!!!

Steven

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