Bob Harrison wrote................
" Be sure to do the head re-torque
> and valve reset (unless they are hydraulic) at no more than 5 hours,
> then repeat every 5 hours to 25.
I would like to remind all Rotax drivers to periodically check the torque on
the head bolts of their engines. This past weekend I sprang a major
in-flight oil leak necessitating an emergency landing. Oil was gushing from
between the head and the cylinder. Upon landing I checked the head bolts on
that cylinder and found two of the four to be less than finger loose. After
tightening them up, I checked all the other cylinders too, and found 3 of
the remaining 12 bolts to be slightly loose. All should be torqued to 200
inch pounds. For reference purposes, my 914 engine is 7 year old with
almost 500 hours on it.........and I never checked the head bolt torque
before.
Garry Stout
N4220S A060 TriGear
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