How to tork a Fd42 cyl head - 1988 Suzuki Samurai

Perhaps page 67 of the following manual will be of assistance.

https://drivcat.com/livedocs/99999.pdf

You start by providing specific information on what it is you are working on.

The FD42 has hydraulic lifters, no setting required. If it does not have hydraulic lifters, 0.40mm inl & exh hot

The Nissan FD42 is a 4.2 l (4,212 cc, 257.03 cu·in) straight-four, water-cooled naturally aspirated diesel engine from Nissan FD family. The engine was manufactured by UD Trucks (Nissan Diesel) from 1991 to 1995.
The Nissan FD42 has a cast-iron cylinder block, a cylinder head with OHV (overhead valves with single camshaft), two valves per cylinder (8 in total) and a direct fuel injection system.
The cylinder bore is 108.0 mm (4.25 in) and the piston stroke is 115.0 mm (4.53 in), and the compression ratio rating is 18.0:1. The Nissan FD42 engine produced 125 PS (92 kW; 123 HP) at 3,200 rpm of maximum output power and 299 N·m (30.5 kg·m, 220.4 ft·lb) at 2,000 rpm of peak torque.
https://www.breathervalve.net

FD42 ?
big end? sounds, like ROD cap bolt/nut torque.
well no mater, why not read fsm, click sammi here.
http://www.fixkick.com/sammi-stuff/index.html

alloy head petrol engine then 65-70 lbs if a cast head then 80 or so ,if a turbo diesel then 110lbs

cast iron heads 90lbs alloy 75 lbs

on a 350 5.7 litre chevrolet it is 65lbs

if interested i can e-mail you a diagram of the torque sequence and torque values just did one this weekend.

Cylinder Head Bolt (Preferred Method) All Bolts First Pass in Sequence 22 ft.lb Long Bolt Final Pass in Sequence 75 deg. Medium Bolt Final Pass in Sequence 65 deg Short Bolt Final Pass in Sequence 55 deg. Cylinder Head Bolt (Optional On-Vehicle Strategy) First Pass in Sequence 26 ft.lb Second Pass in Sequence 44 ft.lb Final Pass in Sequence 66 ft.lb