Reg's Air Cooled Engines
(1)
- BE SURE Gas Tank and Fuel lines are free of STALE
gas/oil fuel mixture.
(2)
- BE SURE all Fuel lines are pliable and all CONNECTIONS are
tight.
(3)
- Mix fuel at 30 to one,(30-1).USE ONLY A PETROLEUM BASE OIL FOR
TWO CYCLE ENGINES. We normally do not recommend brands. however
Chevron Two Stroke oil works with excellent results). Be care-full of
using gasoline with an alcohol additive blend. DO not use this type
of gasoline.
(4)
- Secure Aircraft, tie it down.
(5)
- Start engines and run at various speeds for ½ hour. avoid full
I.E.. during this tire).
(6)
- Taxi aircraft for another ½ hour-short duration full power
applications can now be used.
(7)
- Light take-offs and landing can now be done for another hour.
total 2 hours).
(8)
- Let engines cool down. over night if possible. RETORQUE cylinder
heads.(210 inch lbs).THIS IS VERY IMPORTANT Check again after 10
hours of operation and re-torque if necessary.
After 10
hours a 35 to 1 fuel mix may be 'used.
DO NOT GO HIGHER THAN 35 - 1.
Doing so may have adverse effect on crankshaft seal life.
WARNING - GAS-OIL mixtures. Two
cycle engines (four cycle also) do not like water in the gas or STALE gas.
REMEMBER gas/oil mix in the fuel tank is not being stored in a
sealed container, therefore it tend to go 'stale more quickly than in a
sealed container. This gas/oil/water mix does not contribute to
satisfactory combustion. It may also have detrimental effects on
crankshaft seals and gaskets etc
WARNING - Wood Props. Wood
expands and contracts with weather changes. Check the torque on prop bolts
at regular intervals, (suggest every two weeks) This does not take a lot
of time but is very important. Torque to 125 inch lbs.
DO NOT USE WOOD PROPS ON ROTAX
l85cc ENGINES THAT DO NOT HAVE THE HEAVY/DUTY CRANKSHAFTS. Personal
injury could occur.
Important Torques
Prop Hubs
= 360 inch lbs.
Prop Bolts
= 125 inch lbs.
Cylinder Heads
= 210 inch lbs
To get foot lbs. divide inch lbs by 12 (eg. prop hub;360 = 30 ft/lbs) |
