Engine body Replacement of front crankshaft bushing 5. Check that the oil channel is open after pressing in. 1. Dismantle the bushing from the cylinder block. Check also the bushing's inner diameter. See 2. Check that the bushing's mating surface in the "Technical data" for size. block has no burrs or upset ends. Checking of big-end bearing clearance The big-end bearing's radial bearing clearance can be checked by means of the measuring plastic (part. No. 856927-9) as follows: Special tool: 856927-9 (measuring plastic) Fig. 75. Marking up of oil hole 3. Draw a line over the hole in the block and bushing with a marker pen (Fig. 75).
Oil in the outside of the bushing and its mating surface in the block. I'- Fig. 77. Application of measuring plastic 1. Wipe clean the big-end bearing and big-end journal from oil. Cut a piece of measuring plastic to the same length as the bearing width and apply the measuring plastic along the big-end journal (Fig. 77). Note: Avoid the oil hole. Fig. 76. Fitting of the bushing 2. Fit the connecting rod and cap (note markings cor- respond) and tighten the crankshaft screws. 4. Make sure that the bushing's oil hole corresponds with the oil channel in the cylinder block and press Tightening torque, see Technical data. i n the new bushing to the correct depth. NOTE!
Do not turn the connecting rod or crank- shaft since this will destroy the measuring strip. NOTE! The bushing should be pressed in from the front of the block and with the bevelled side of the bushing turned forwards (Fig. 76). 48