Crankshaft and flywheel [Toyota Carina T170]

Work on the crankshaft and related parts in the same way as was done for gasoline engines. In this case, work should be done using the table of dimensions and adjustments, since it contains different data regarding clearances, the diameter of the main bearing journals and connecting rod journals, the thickness of the thrust half rings, axial clearance, etc. The tightening torques of the bearing caps also differ. Figure 313 shows the parts of the crank mechanism.

Attention should be paid to the oil injection nozzle and the oil check valve, which are not installed on petrol engines. Both parts can be removed. The oil pump is removed as described below in the relevant chapter. The main bearing clearance is measured in the same way as described above, but when installing bearing shells of the nominal size, it is imperative to install shells with the same numerical marking. On the back of the shells there is a marking with the numbers 1, 2 or 3. On the flywheel side of the cylinder block, the same numerical marking is stamped for the corresponding main bearing. If the same shells are re-installed, they must be installed in the same holes, since they have already been worked in with the bearing journals.

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