The "tower" that forms part of the crankcase breather system is wet
with oil top to bottom. Not a lot but the whole thing has a film of oil
over it. There is also oil on the bottom of the engine, As well, the
approx 7" hose (1" diameter) - the breather heating pipe?- leading from
the tower to the air intake is soft and collapsed to an oval shape.
Should it be like this or should it be firm and round. Any ideas as to
what's causing the oil leak?   Excessive crankcase pressure? Is there
an easily replaceable gasket?
TIA