When removing the bearing caps, make sure to mark them so the right caps are matched up later, as they can't be interchanged. The bearing shell should be installed so the butt of the tang is in the machined groove on the rod or cap, with the cap tangs all on the same side. Rods on the same bank will be finished as a single unit and the taper or out-of-round on all
Crankshaft journal surfaces should satisfy the limits given in the specification. Customers can find bearings in 0.007 mm oversize, standard, 0.007 mm undersize, 0.025 mm undersize and 0.254 mm undersize. Bearings should always be fitted together as a set and you cannot use old bearings with new ones. It is not allowed to file or grind the rod-where or bearing end caps. Watchmakers should measure main bearing clearance and connecting rod bearing clearance with Plastigauge. Using the select-fit principle, the clearance in these bearings is controlled by making the crankshaft journals the same size as the requested bearing. The required rod bearing class for each rod is determined by the code 'B' 'A' 'B' 'B' 'B' 'C' found on the #9 counterweight. This means rod #1 is Class 2, rod #2 is Class 1, rod #3 is Class 2, rod #4 is Class 2, rod #5 is Class 2 and rod #6 is Class 3. Rod bearing bolts intended for reuse should be assessed for necking; those showing necking should be replaced. To check a threaded rod, lay a ruler against it: if all the threads don't touch the ruler, you have to change the bolt. Clean the threaded holes and check for any obstructions before start, then do your bolts up once by hand and take turns torquing them, just not too much, to join the parts properly. In the end, tighten all of the connecting rod cap bolts to the correct required torque. Put a dial indicator in place on the engine where it won't move, position the probe against the connecting rod cap being measured. Move the rod to where it barely reaches in back, set the dial indicator to zero and measure where the rod comes to an end. Refer to the engine specifications and make the measurement on all connecting rods, repeating the process each time you turn the crankshaft.