"STOUT, GARRY V, CFABS" wrote:
> Would anyone care to share with us what the correct torque specification is
> for this bolt?
>
> Garry V. Stout
Hi Gary,
I looked it up in my Lockwood Aviation catalog. The valve cover screws show as
Part no. 840 880, Allen screw M6x30, 10 Newton Metres torque. (= 88.5 in. lbs.)
Interestingly, the catalog parts diagram for the cylinder head & intake manifold
does not show any Loctite applied to these valve cover screw threads. On this
same parts diagram, Rotax carefully specifies orange Loctite 574, green Loctite
680 and violet Loctite 222 at various other locations.
In a more recent catalog from Lockwood, the format of the parts list has been
changed and the torque values no longer show. Also the part number is now 840
887, Allen screw M6x30. Hmmmmm, strange.
Cheers, John
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