TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
p.106
EM/Engine Mechanical107 / 139
p.108
PISTON AND CONNECTING ROD DISASSEMBLY — MK4 Supra Engine Mechanical, page 107
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ENGINE – ENGINE MECHANICAL EG–107 5. REMOVE CYLINDER RIDGE If the wear is less than 0.2 mm (0.008 in.), using a ridge reamer, grind the top of the cylinder. P02288 6. INSPECT MAIN BEARING CAP BOLTS Using vernier calipers, measure the minimum diameter of the compressed thread at the measuring point. Standard diameter: 9.96–9.97 mm (0.3921–0.3925 in.) Minimum diameter: 9.7 mm (0.382 in.) If the diameter is less than minimum, replace the bolt. Compressed Thread About 50 mm P02453 PISTON AND CONNECTING ROD DISASSEMBLY 1. CHECK FIT BETWEEN PISTON AND PISTON PIN Try to move the piston back and forth on the piston pin. If any movement is felt, replace the piston and pin as a set. P02123 2. REMOVE PISTON RINGS (a) Using a piston ring expander, remove the 2 compression rings. (b) Remove the 2 side rails and oil ring expander by hand. HINT: Arrange the piston rings in correct order only. P02106 3. DISCONNECT CONNECTING ROD FROM PISTON (a) Using a small screwdriver, remove the 2 snap rings. P02059