{"model":"mk3","model_name":"MK3 Supra","vehicle":"Toyota Supra A70 (1986.5–1992, 7M-GE / 7M-GTE)","document":"Repair Manual","section":"EM","section_name":"Engine Mechanical","page":73,"pages_in_section":98,"title":"Engine Mechanical","section_header":"Engine Mechanical — Cylinder Block","ocr_text":"ENGINE MECHANICAL — Cylinder Block EM-73\n\n(Reference)\n mm (in.)\n\n Mark\n 1, 2, 3, 4 or 5\n\n\nFront\n ← [DIAGRAM SHOWING CYLINDER JOURNALS]\n\nNo. 1 — No. 4 Journal\n No. 5 — No. 7 Journal\nMark\n1, 2 or 3\n\n\n Mark Cylinder Block Main Journal Bearing Center\n Main Journal Bore Diameter Wall Thickness\n\n 0 — 69.007 — 69.012 —\n (2.5025 — 2.5027)\n\n 1 64.024 — 64.030 69.001 — 69.006 1.988 — 1.991\n (2.5206 — 2.5209) (2.3622 — 2.3624) (0.0783 — 0.0784)\n\n 2 64.031 — 64.036 59.994 — 60.000 1.982 — 1.994\n (2.5209 — 2.5211) (2.3620 — 2.3622) (0.0784 — 0.0786)\n\n 3 64.037 — 64.042 — 1.995 — 1.997\n (2.5211 — 2.5213) (0.0785 — 0.0786)\n\n 4 — — 1.998 — 2.000\n (0.0787 — 0.0787)\n\n 5 — — 2.001 — 2.003\n (0.0788 — 0.0789)\n\n U/S 64.022 — 64.046 59.730 — 59.740 2.023 — 2.025\n 0.25 (2.5205 — 2.5215) (2.3516 — 2.3520) (0.0796 — 0.0840)\n\n\n EO738\n C5661\n\n[DIAGRAM SHOWING BEARING CAP POSITIONS]\nUpper 1 2 3 4 5 6 7\n Lower\n EM3839\n\n23. REMOVE CRANKSHAFT\n\n (a) Lift out the crankshaft.\n (b) Remove the upper main bearings and upper thrust\n washers from the cylinder block.\n (c) Clean out the scraps of Plastigage from bearing and\n journals.\n\nHINT:\n • Arrange the caps, bearings and thrust washers in cor-\n rect order.\n • The pilot bearing in the crankshaft rear end is perma-\n nently lubricated and requires no cleaning or lubrication.\n\n24. (7M-GTE)\n REMOVE OIL NOZZLES\n\n[DIAGRAM SHOWING OIL NOZZLE REMOVAL]\n 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