Turbomeca Palas
Page 4
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Upon getting the engine into the stand and attempting to crank it over
it was discovered that the engine failed to crank over. The starter spun up
and was fine.We then delved into the accessory gearbox, radial drive shaft
etc, all were discovered to be in tip top condition. On this engine the starter
drives a bevel gearbox, a radial drive shaft then connects this to the bevel
gearbox that sits as part of the intake bullet furnished fuel pump, oil pump, governor etc.

So I sat the engine on its back end and stripped off the inlet bullet
accessory pack, and removed the front bearing housing.

I have stripped and rebuilt many Turbomeca engines of this configuration
and it was immediately apparent that the internally splined sleeve that
connects the gearbox to the rotor shaft was missing. GREAT!!!! Fortunately
I have a large number of spares kicking around so after a short period of
rooting around in the garage one was found and installed. It was also noticed
that the fuel control and gearbox, governor etc had been stripped down
and only loosely reassembled. It had been reassembled completely incorrectly.
So that meant that I had to re-strip it, re-seal it, reassemble it properly
and then set it up. Again fortunately I have done this before on Continentals
and the original Paloustes so it went without any further hitches.

So the engine is now fully reassembled and hot to trot when I get
the time to do it. It remains a mystery who originally stripped it and
lost the coupling

Following the removal of the intake bullet accessory pack the gearbox
drive bearing housing is visible. This when pulled exposes the housing
cavity inside which the coupling sleeve is installed

Reinstallation of the intake accessory group
(Image below right of an identical Original Palouste one shown)

 

 

 

 

 

 

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Turbomeca
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