TSRM/MK2 Supra/Repair Manual
Repair ManualWiring Diagrams
p.046
EM/Engine Mechanical47 / 64
p.048
ENGINE MECHANICAL — Cylinder Block — MK2 Supra Engine Mechanical, page 47
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ENGINE MECHANICAL — Cylinder Block EM-47 (h) Install the main bearing caps. Torque the cap bolts. Torque: 1,040 kg-cm (75 ft-lb, 102 N·m) NOTE: Do not turn crankshaft. (i) Remove the main bearing caps. (j) Measure the plastigauge at its widest point. Standard clearance: 0.034 — 0.066 mm (0.0013 — 0.0023 in.) Maximum clearance: 0.08 mm (0.0031 in.) If the clearance is greater than maximum, replace the bearings and/or grind the main journals. Undersized bearing: U/S 0.25, 0.50 NOTE: If replacing a standard size bearing with a standard oil clearance, replace with one having the same numbers stamped on it. If the number of the bearing cannot be determined, select a bearing from the table below according to the numbers imprinted on the cylinder block and crankshaft. Cylinder Block 1 2 1 2 3 1 3 2 3 No. Crankshaft No. 0 0 1 0 1 2 1 2 2 Bearing No. 1 2 2 3 3 3 4 4 5 Example: Cylinder Block No. 2, Crankshaft No. 1 = Bearing No. 3 No. 7 — No. 6 No. 5, No. 6 No. 3, 4 No. 1, No. 2 Cylinder 1, 2, 3, 4 or 5 No. 6 — No. 7 Journal No. 1 — No. 4 Journal 21. REMOVE CRANKSHAFT (a) Lift out the crankshaft. (b) Remove the upper main bearings from the cylinder block. (c) Clean out any plastigage scraps from the bearing and journals.