I have just bought a fieldman


I have just purchased a 2.8 TDS fourtrak fieldman, it has done 82000 mile, i plan to change the timing belt and change the oil fuel and air filter, i do not have any history of the vehicle, this is my first ever daihatsu 4x4.
Can anyone else recommend anything else i should check (Diffs etc)The engine runs well but the brakes are very spongy.
Would be grateful for any advice on how to keep trouble free !!

Yep, little Tonkas are great

Having lived with mine since new (it's now done 95000 miles), I'd also suggest changing the fan and power steering belts at the same time as you change the timing belt. Keep the old ones under the seat if a belt lets go while you are out and about (at least you know it will fit, cos it came off the vehicle in the first place). Do a search for QBB800 which is the Quinton Hazell number for the power steering belt .... you should find the number for the fan belt too in some other post I left. I bet the power steering fluid hasn't been changed since new ..... drain and replace with AQM grade.

Alternator QBC1113
Steering pump QBB800

Change gearbox and transfer box oil for semi-synthetic 75W-90 and use molyslip in with it. (The gearboxes on these beasts are the weaker link on these vehicles, so look after them). I run the diffs on straight hypoid 90 GL5, or you can use the same as the gearboxes.

Strange about the brakes being spongy .... it might be worth taking the front callipers apart and greasing the sliding pins on the floating callipers with copperease. It will certainly stop the beast pulling to one side.

One final thing .... give it a good greasing on all the grease nipples:-

Prop shaft universal joints and central spline,
Front suspension upper and lower ball joints,
Steering track rod outer and inner balljoints,
Steering box 'drop arm' balljoint.

Oiks at modern garages don't seem to understand that regular greasing keeps all these bits working virtually forever. I usually grease everything at the same time I change the engine oil. If you are doing any serious offroading, it would be a good idea to grease the propshafts before and after mud-plugging to keep the wet and muck out of the universal joints and splines. As an example, the propshaft on my first 'trak has done 95000 miles and is pretty much perfect, but the propshaft on the 'trak I bought secondhand with a 'full service history' and 64000 miles is not so hot !