3B7-72530-2 Tohatsu TACHOMETER, WITH OUT OIL LAMP

Illustration 1 g06148718
Front view
Table 1
Specification for 383-7225 Cylinder Block Gp
Item Qty Part Specification Description
A 32 8T-0099 Dowel Extension of the dowel from the top face of the cylinder block is 21.0 0.5 mm (0.83 0.02 inch).
1 2 4W-4813 Plug Torque to 100 15 N m (74 11 lb ft).
2 1 350-1417 Cylinder Block During assembly, top of cylinder block must be free of fuel, oil, water, gasket adhesives, assembly compounds, and any other contaminants.
3 18 116-1359 Camshaft Bearing All centerlines through oil holes in the camshaft bearings and the camshaft bearing junctions must be positioned that is shown in Illustration 1 for each side of the cylinder block.
B 16 197-7008 Dowel Extension of the dowel from the top face of the cylinder block is 21.0 0.5 mm (0.83 0.02 inch).
C - - Bore in the cylinder block for the camshaft bearings is 98.000 0.020 mm (3.8583 0.0008 inch).
D - - Oil holes in the camshaft bearings must be positioned from the horizontal centerlines at an angle of 20 5 degrees. Refer to Illustration 1.
E - - New dimension from centerline of crankshaft bearing bore to bottom of block (pan rails) is 230.00 mm (9.055 inch).
F - - Bore in the block for the main bearings is 169.742 0.020 mm (6.6827 0.0008 inch).
Illustration 2 g06148736
Right side view
Table 2
Item Qty Part Specification Description
G 3 7N-2047 Dowel Extension of the dowel from the front face of the cylinder block is 6.0 0.5 mm (0.24 0.02 inch).
H 2 4N-0683 Dowel Extension of dowels from the rear face of the cylinder block is 19.0 0.5 mm (0.75 0.02 inch).
J 2 7N-2044 Dowel Extension of dowels from the front face of the cylinder block is 40.0 0.5 mm (1.57 0.02 inch).
Illustration 3 g06148738
Table 3
Item Qty Part Specification Description
4 16 352-6061 Liner Seal Assemble liner seals dry on clean and dry liner grooves.
Before assembly, cover seals with either P-80 Rubber Lubricant Emulsion or liquid soap.
5 48 7N-2046 O-Ring Seal Before assembly, cover seals with either P-80 Rubber Lubricant Emulsion or liquid soap.
K - - Width in the cylinder block for crankshaft bearing cap is 339.985 0.015 mm (13.3852 0.0006 inch).
L - - New dimension from centerline of crankshaft bearing bore to the top of the block is 586.00 mm (23.071 inch).
6 9 223-1696 Crankshaft Bearing Cap Width of the crankshaft bearing cap is 340.030 0.015 mm (13.3870 0.0006 inch).
7 36 7X-7925 Bolt Use the following procedure to tighten the crankshaft bearing cap bolts:
Install main bearing caps with the cast part number and FRONT toward the front of the block. Each cap has a number. Each cap must be installed in the same position as the correct number on the side of the cylinder block pan rail.
1. Before assembly, lubricate the threads completely with clean engine oil.
2. Hand tighten bolts in the tapped holes.
3. Tighten bolts in the numerical sequence as shown in Illustration 3 to 190 14 N m (140 10 lb ft).
4. Again, tighten each bolt to an extra angle of 180 5 degrees.