49-09 & 15: Installing Oil Cooler & SCAT hose

Once the engine mount had been attached to the engine, i was able to install the oil cooler and SCAT duct. This is not possible to install before the engine is hung, as you would not be able to reach the engine mount bolts. 

The oil cooler was simple to mount - i had previously built the oil cooler duct shroud. 

The SCAT hose needs to be modified at the ends by removing some of the internal wire. This allows the clamps to be clamping down on only the fabric part of the duct. The wire is cut to the desired length, then bent in such a way that it sits against the remaining wire in the duct. The tail of the wire is bent slightly inwards so it does not puncture the duct. 

A bead of RTV is run the length of the duct to retain the string on the outside - if you don't do this, the string is pretty fragile and will just wind off. 

The wire is cut, then bent as above

This allows the end of the duct to be flexible and able to be clamped.

The bead of RTV retains the string on the outside.

The large clamps were pre-formed into roughly the correct shape for the cooler shroud flange

Finally the SCAT hose could be installed between the aft baffle and the oil cooler.