Evolution Engines EVO3380 - Manual

Evolution Propeller Drill Guide
This Propeller Drill Guide is used to help drill accurate holes for the propeller screws so the propeller can
be mounted securely and safely to the engine. It is specifically designed for use on the Evolution
® line of
gasoline engines, the EVO45GX/GX2, 58GX/GX2 and 116GX/GX2.
OPTION: In case one has to use a hand
drill (not recommended), repeat the above
procedure, but mount the drill guide on the
back side of the propeller. Use the drill
guide with a bolt fastener as an arrestor
pin and drill the holes from the back side
of the propeller first.
IMPORTANT: Each bolt should be in place
and tight, to prevent the propeller from
bending or breaking the bolts.
1
3
Pin the full depth hole using
a propeller bolt and then
screw the guide firmly
together and proceed to
bore the other half of the
propeller bolt holes. Place the guide on the front
side of the propeller, so it is
centered with the central
fixing screw in the propeller
center hole (diameter 10mm).
Screw it together firmly.
Bore the other holes from
the other side to full depth.
Screw down the washer with
one of the enclosed fixing
screws (choose the one of
the proper length).
2
Drill all the other holes into
depth about one half of the
propeller thickness. The use
of two bolts to pin in place
will help ensure the rest of
the holes line up when you
go to step 6.
4
Unscrew the drill guide
assembly, and reposition the
guide portion of the jig to the
opposite side of the propeller
(Do not tighten the drill guide
center bolt until the next step.)
2
Use of a drill press is recom-
mended. Once the propeller
blade is fixed in position,
drill the first hole in full depth.
Use the 3.9mm bit for the
58GX/GX2 propeller screws
and the 4.9mm bit for the 45GX/GX2 propeller screws.
A chase drill bit will be used to finish boring out the
holes once the initial holes are all drilled. The 4.9mm
bit is also for use on the 116GX/GX2. Pin the jig in
place by placing one of the propeller bolts into the first
full depth hole. This will ensure that the jig does not
rotate during the drilling of the remaining holes.
Remove the drill guide and
replace bit with a chase bit
to finish boring out the holes.
The 4.1mm chase bit is used
to drill out the 3.9 holes and
the 5.1mm chase bit is used
to drill out the 4.9 holes to the proper diameter for the
propeller bolts.
5
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