[TR] TR3A Fan extention housing and bolt removal

[Randall]

> What does the long bolt through the centre of the extension 
> bolt to, the pulley housing or the crankshaft?   I'm
> guessing the crankshaft.

Yup, it goes all the way into the crankshaft and must be removed to remove
the extension, hub, timing cover, etc.

> what sort of tool do I use 

I forget the size offhand, but a standard 6-point socket will grab it
securely in spite of the rounded corners.  A stout impact wrench is by far
the easiest method, IMO, as it will work against the inertia of the engine.
Otherwise, you are going to need a long breaker bar and some method of
locking the engine.  I have gotten by with putting the gearbox in 4th gear
and setting the parking brake firmly; but that apparently isn't enough in
some cases.  Another trick I've heard is to rest the handle against the
ground (or the frame) and hit the starter.

Or if appearance isn't important to you, a big pipe wrench right on the
extension would probably work.

-- Randall