It is important before pulling the piston and connecting rod assemblies that you have to first relieve the
Cylinder Head(s), oil pan and finally the oil pump. First ensure that you eliminate the entire top ridge of the cylinder by carefully applying a ridge reaming tool according to the manufacturer's guidelines else the pistons break. After that inclined the engine in upside-down position with the
Crankshaft at the upward position to remove the cylinder ridges. Prior to disconnecting the connecting rods look at the end clearance using feeler gauges to make sure the the clearance is removed; if the end clearance is beyond the service limit then new connecting rods may be needed. Also, make sure that bolting connecting rods and caps are marked, and if they are not marked, one ought to use a small centre punch to do so. Slowly turn out each of the connecting rod cap nut until they can be unscrewed by the hand, then unbolt the number one connecting rod cap and the bearing insert but be careful not to let the bearing insert fall off. During piston removal, the crankshaft journal and the cylinder wall are very sensitive, slip a short length of plastic or rubber hose over each of the connecting rod cap bolts. The connecting rod/piston assembly should now be pushed out through the top of the engine; the use of the wooden hammer handle can also be of assist when doing the upper bearing insert. If there is such resistance, then check whether all the ridge material has been provided fully. Do this for the remainder of the cylinders, and after their removal, replace the connecting rod caps and bearing inserts into their intended rods, tightening the cap nuts only enough with your fingers so as not to mar the bearings.