This journey begin last Sat when i drop by at my parents house and saw my bro and dad is peeking donw the engine bay of the Pajero while discussing something. I decided to join and they said they want to do top overhaul of the engine and i noticed that the hood and the air cleaner assembly is already off so i guess they are serious about it. Since i had my tool set on standby in my BLM bonnet i brought it to the scene.I also happened to have a Haynes service manual for the car...what can go wrong right??? Anyway here is the car...its an LO47 Pajero powered by 4G54 engine. Previously it was using a different set of wheels ( Mangles 16 inch ) but was changed recently. BTW the Mangles is up for sale. Sadly i did not take picture when the air cleaner, intake & exhaust,radiator fan assembly, valve cover,are still attached to the engine. I also skip the finding TDC part as i bet most of u guys are more expert than me. Only few picture after; Intake off: Exhaust off: We leave the carb attached to the intake manifold to reduce labor and work time. After all none of us are mechanic and this is our first time doing major job. The carb is laden with vacuum hoses and we really dont want to mess with the setup. Initially we thought the timing chain can be removed from the sprocket after we removed the bolt which holds the sprocket to the camshaft. The manual said that can be done but will require a special tool. So, the timing chain cover have to go too to access the tensioner...well actually there is a window to access the tensioner but since we have gone this far...why not. To do this, all the acc bolted to the engine are removed which are the power steering pump, water pump, alternator, compressor. After we loosen the tensioner we loosen the bolt holding the head and it comes off easily. Luckily there is lots of space in the engine bay after the front part of the engine acc and radiator assembly is removed. I actually climb into the engine bay to lift the head off the block. It was quite heavy; Lots of carbon build up. The concern is on cylinder no 4 as there are traces of engine oil. More closed up pictures; Here are the piston....Lots of carbon build up and again, no 4 had traces of oil; FYI no 1 is closest to the timing chain. Few shots of WD40 into all cylinder does not show that the rings are worn out as the fluid remained there. Same test on the head also returned similar result. Nonetheless we will still grind the valve before reassembly apart from replacing all seals and gasket. Rocker arm off; It was late evening and after ordering the gasket set i set to do minor cleaning on the timing chain cover and here is the result; Petrol works well in removing the varnish but i rinse it off with degreaser ( alkaline based ) as petrol will leave behind oily stain. I removed the old gasket and cleaned the surface so its easy for the person doing assembly to hold the park and work with the part. Here is the aftermath of the disassembly; I might not be around for assembly so i remind my bro to rake pictures. If i am able to join him which i strongly hope so then i will take picture myself. It was fun doing this as most of the time we are diving in blind as the diagram in the manual totally differ from what we are having in front of our eyes. BTW, if anyone know where to source fiberglass hood for this Pajero do let me know. We want to shed some weight.