To do the job properly, the oil pan and the oil pump bolts must be removed at the start. Pull the chain tensioner away from the oil pump chain and take out the pump, as well as the oil pump, pickup tube and the O-ring. Loosen the negative battery cable and after that, take out the oil pan and oil pump. Don't immediately seat the thrust spindle against the oil pump chain; back out the pin first. Put the number 93121 riveting tool onto a link of the oil pump chain, screw the number 93123 thrust pin into the thrust spindle (number 93124) and separate the oil pump chain link. If the oil pump chain is installed incorrectly, it can cause major trouble for the engine. Should the oil pump be empty, put oil in it and then clear the oil pickup tube and strainer. Ensure all sealing surfaces are spotless, stick the oil pump onto the drive chain, ground the tensioner, install the retention bolts and tighten the bolts to 18 Nm (160 inch lbs.). Replace the oil pan and pour in the right type of engine oil into the crankcase. When the engine is on, please avoid it and always keep your clothing close to your body. After starting the vehicle, look for any leaks. Attach a temporary chain link, outer plate and a locking element to the old and new chains before slowly turning the crankshaft clockwise to match both chains. Lift off the assembly clamp, strip of metal and assembly link, all with the new riveted component being pushed in last from behind. Neatly link together the new oil pump chain with the new riveted link, while aligning the riveting points with the tool used. Set the new link into the tool and press the rivet until it hits the stop. If the insert is used up, replace it. Put the new outer plate in the moving assembly insert, make sure the riveted link and outer plate are lined up and screw the spindle of the riveting tool in until it feels stiff. After removing the riveting tool, flip over the tool moving assembly, set the insert onto the riveting profile and rivet each pin of the riveted link by hand. Joint the pins in the middle part, tighten the tool until it stops, look at the riveting and redo it if required. Finnally, set in the oil pump and oil pan, put the engine oil in as recommended, attach the negative battery cable, start the engine and check for any leaks.