Hi Ruari,
I hope that one of the Gauteng members might know of someone who could help or might be able to check the vehicle out with you themself.
Rest assured that the 4.5 Patrol is a tough and durable old beast. It is quite a simple vehicle (in the modern sense of the word) and the basic design philosophy was to over-engineer it so that it can remain reliable even after many years of hard work.
Having said that, it would be a good idea to do the normal types of checks that one would carry out before buying any second hand vehicle. It might be useful to have an AA inspection carried out. Typical things to check on any used vehicle would include:
* Check that the clutch engages without knocks or vibrations
* Check that there are no drivetrain vibrations/whines with the clutch engaged or disengaged at standstill
* Engage all drivetrain modes and make sure that everything works (4H, 4L, rear diff lock)
* Check the engine mounts
* Ensure that the aircon works well
* Check for leaks underneath: Japanese cars don't leak unless something is wrong. Have a good look at the front wheel swivel hubs.
* Check for suspension lean/sag
* Ensure that you get the original master and spare keys as well as remotes
* Listen for noises created by the alternator and water pump
* Check that all electrical/electronic gadgets work (aerial, mirrors, windows, hazard flasher, lights, fans, etc.)
* Check that the seat recliner handles or electrical controls work
Although the Y61 Patrol (and particularly the 4.5 version of it) is a sturdy machine, some issues have been identified over the years
Body & Chassis
The following bodywork items sometimes give problems on Patrols that have worked very hard or have seen serious off-road use:
* Check rear spring mounts/towers for bending/cracks
* Check front recovery point for damage
* Check the rear barn door hinge points. Look for cracks
* Check that the barn door mounting/catch bolts are not loose
* Check that the rear light clusters (in bumper) are not loose
The barn door light contacts also sometimes give problems and then the interior lights flicker or remain on when the doors are shut
Drivetrain
* Check that the auto hubs operate without grating or repeated clacking noise when in auto mode
* Ensure that the rear diff lock (which is vacuum actuated) engages in 4H and 4L
Fuel system
* Ensure that the sub tank pump works
Suspension
* Check that the vehicle does not wander on the road or suffer from wheel shimmy
Transmission
* Check for a whine in 5th gear
* Check for difficult gear change 4th to 5th (or 5th to 4th) when hot (could just need an oil change

)
Engine (TB45E)
* Check for exhaust leaks from manifold gasket/flange gasket or cracked manifold
As you would have noticed, there are not really many issues relating to the bulletproof old TB45 motor. It is a low-revving, 2 valve per cylinder, pushrod motor with chain drive to the camshaft, so is really dead simple.
