27 foot pounds per Mazda.  I take mine to 29 after taking them all to 27.

Hans

On 3/31/07, Al Gietzen <ALVentures@cox.net> wrote:
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> Anybody know the torque spec for the 2 larger diameter tension bolts (21mm
> head) that go in from the front on a 20B?
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> I discovered that there was a coolant leak into the oil, and after removal
> of the engine from the plane in order to get the pan off; I discovered the
> 21mm tension bolt inside the front cover had not been tightened. Then found
> the other behind the CAS was also loose.  Last year I had an external leak
> at one of the 21mm bolts a the rear housing, and found that the two at the
> back had not been torqued. Pretty hard to imagine a rebuilder overlooking
> torquing the main bolts that hold an engine together.
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> Al