Thunder Tiger Raptor 30 V2

Thunder Tiger Raptor 30 Radio Control Helicopter

May 02, 2015



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Airfield Models (http://www.airfieldmodels.com/)Building the Thunder Tiger Raptor 30 V2 Helicopter Step Nine

 
 

Step Nine Engine Assembly

  • This step is on page 10 of the Instruction Manual.
 
Parts bag for this assembly. Parts bag for this assembly.
Parts needed for engine assembly. Parts needed for engine assembly.

If your engine needs a throttle extension you should go ahead and add it to the engine now.

O.S. Max .32 Helicopter Engine. The O.S. .32 helicopter engine comes with a thrust washer which I think is a nice touch.  The thrust washer allows you to mount the engine on a test stand and run it with a propeller.

The benefit is that you can get the needles roughly set and ensure the engine works properly before mounting it in your heli.

Many helicopter engines do not come with a thrust washer which means you have no choice but to adjust the engine in the helicopter from the beginning.

Remove the engine thrust washer and store it someplace safe. The thrust washer must be removed.  Put it someplace where you can find it if you ever need it again (which I did).  The box the engine came in is a good place.
Apply Loctite only to the fan threads and thread the fan onto the crankshaft. Clean the crankshaft threads and the cooling fan threads with alcohol.

Apply Loctite only to the fan threads and thread the fan onto the crankshaft.  The reason you apply Loctite to the fan threads only is so that the Loctite goes into the fan and not into the engine front bearing.

There is a tool you can buy that threads into the glow plug hole on the engine and prevents the engine from turning over so you can tighten the fan.  I don't like the idea of that much as I don't think the engine is designed for that kind of load.  I remove the carburetor, place the largest dowel that will fit inside and tighten the fan with a rag wrapped around it.

Tighten the nut securely using a socket wrench. Apply Loctite to the crankshaft threads and the propeller nut.  Tighten the nut securely using a socket wrench.
Add the shim to the cooling fan. Add the shim to the cooling fan.  Align the holes in the shim with the holes in the cooling fan.
Bolt the clutch shoe to the cooling fan. Place the clutch shoe on the cooling fan.  Align the holes in the clutch shoe with the holes in the shim and cooling fan.

Apply Loctite to the socket head bolts and tighten the clutch securely.

 
 

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Building the Raptor 30 V2 Helicopter - Step 8
Building the Raptor 30 V2 Helicopter - Step 10

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Copyright 2006 Paul K. Johnson