CRANK PLUG INSTALLATION WITHOUT TEAR DOWN

I have a HO-360B1B 180HP helicopter engine turning a fixed pitch prop. I hope to convert it to support a CS prop. Does anyone know if it's possible to install the plug in
the crank without tearing down the engine and removing the crank. I think it would be possible but I'm hoping someone actually knows...
Thanks very much,
Brad

Unless I misunderstand your question, the plug is inside the crankshaft. Teariing down the engine would not buy you anything.

Yep.

If I can do it successfully anybody can, and I did so it must not be too difficult.

Can you help the OP?

Warbirdsolutions said:

I have a HO-360B1B 180HP helicopter engine turning a fixed pitch prop. I hope to convert it to support a CS prop. Does anyone know if it's possible to install the plug in
the crank without tearing down the engine and removing the crank. I think it would be possible but I'm hoping someone actually knows...
Thanks very much,
Brad

Click to expand...

I am not familiar with that engine but you need to verify the case has been drilled for the governor oil line and that the accessory case can accommodate a prop governor.

Warbirdsolutions said:

I have a HO-360B1B 180HP helicopter engine turning a fixed pitch prop. I hope to convert it to support a CS prop. Does anyone know if it's possible to install the plug in
the crank without tearing down the engine and removing the crank. I think it would be possible but I'm hoping someone actually knows...
Thanks very much,
Brad

Click to expand...

Following the 360 variants it doesn't look like your engine has an option for a CS prop.

HO-360-B1B
180 hp (134 kW) at 2900 rpm, Minimum fuel grade 91/96 avgas, compression ratio 8.50:1. Same as the B1A but with Bendix 200 series retard breaker magnetos.

HO-360-B1A
180 hp (134 kW) at 2900 rpm, Minimum fuel grade 91/96 avgas, compression ratio 8.50:1. Same as C2D but with a different cam shaft.

O-360-C2D
180 hp (134 kW) at 2900 rpm, Minimum fuel grade 91/96 avgas, compression ratio 8.50:1. Same as the C2B except has Bendix 200 series magnetos. First certified.

O-360-C2B
180 hp (134 kW) at 2700 rpm, Minimum fuel grade 91/96 avgas, compression ratio 8.50:1. Same as the C2A except that it has a rear-mounted Bendix carburetor.

O-360-C2A
180 hp (134 kW) at 2700 rpm, Minimum fuel grade 91/96 avgas, compression ratio 8.50:1. Same as the C1A except that it has no provision for controllable-pitch propeller.

I am not familiar with helo engines, but searching Lycoming Service Instruction 1435 should give you an idea.

HO-360B1B Helicopter Engine

Does anyone know whether or not a HO-360B1B can be converted to use a CS prop?
Thanks,
Bradl