91011-0625 Tohatsu BOLT, IGNITION COIL

(D349 Industrial Engine Illustrated)1. Loosen water ferrule clamp (1). Remove two fuel injection pump housing-to-cylinder head bracket mounting bolts (2). 3. Disconnect wiring from water temperature shutoff sending unit (6). Disconnect all water lines from water temperature regulator housing. Attach a hoist to regulator housing. Remove all regulator housing-to-cylinder head mounting bolts (5) and nuts. Remove water temperature regulator housing (4).4. Remove the aftercooler vent lines. Remove the aftercooler water inlet line (3). Remove the engine front lifting bracket. 5. Remove fuel supply line and fuel return line clamp mounting bolt (7).6. Disconnect governor linkage from governor. Remove governor control channel assembly. Remove the governor-to-right aftercooler housing mounting bracket. Remove the fuel ratio control sensing line. 7. Remove three exhaust manifold adapter retaining bolts (8) on Industrial engines only.8. Remove right rear valve cover. Remove the cylinder head mounting bolts and washers. Install three 3/8"-16NC forged eyebolts in head assembly. Attach a hoist and remove the cylinder head assembly-weight 300 lbs. (136 kg). Remove the water ferrule assembly. Always replace the gasket between spacer plate and cylinder block before reinstalling cylinder head assembly. See REMOVE SPACER PLATES.Install Right Front Cylinder Head Assembly
1. Clean the top surface of spacer plate and mating surface of cylinder head. Install a new head gasket and seals (1). Be sure the gasket between spacer plate and cylinder block has been replaced before installing cylinder head assembly. Refer to REMOVE AND INSTALL SPACER PLATES. 2. Attach a hoist and position the cylinder head assembly on dowels and orifice (2). 3. Install the water ferrule, seal and clamp (3). Do not tighten the bolt in the clamp.4. Put 9M3710 Anti-Seize Compound on the threads of the cylinder head mounting bolts and the exhaust manifold adapter bolts. 5. Install the cylinder head mounting bolts and washers. Tighten the bolts in the following Step sequence: 1 Tighten all bolts in numerical order to 175 lb. ft. (24.2 mkg).2 Retighten all bolts in numerical order to 250 lb. ft. (34.6 mkg).3 Finally retighten all bolts by hand in numerical order to 250 lb. ft. (34.6 mkg).4 Again tighten bolt (9) between the two heads to 250 10 lb. ft. (34.6 1.38 mkg).6. Tighten the bolt in the clamp for the water ferrule and seal assembly (3) to 30 5 lb. in. (34.56 5.76 cm.kg).
Do not tighten the bolt more than the specification. If the bolt is tightened more, the seal will be damaged.
7. Install a new gasket, and install the exhaust manifold adapter retaining bolts. Tighten the bolt in the clamp for the water ferrule and seal to 30 5 lb. in. (34.56 5.76 cm.kg).
Do not tighten the bolt more than the specification. If the bolt is tightened more, the seal will be damaged.
8. Attach a hoist and position regulator housing assembly (4) on the engine. Install the six retaining bolts.9. Connect water temperature regulator housing lower water lines. Connect left aftercooler water elbow. Connect water temperature sending unit.10. Install the fuel injection pump housing-to-cylinder head bracket retaining bolts. Install right rear valve cover.concluding steps: a) install oil filter housingb) install right front camshaft housingc) install fuel injection lines (right side only)