1961-1973 Volvo P1800 Service Manual (P/N TP 10138/2, OEM)

• Official Volvo publication TP 10138/2, printed in 1970
• Covers 1961–1973 Volvo P1800 and 1800 S models
• Details B 18 and B 20 engine configurations alongside M 40 and M 41 transmission variants
• Features 46 detailed specification tables for engine, drivetrain, and chassis repair data
• Documents the model evolution from the initial 1961 P1800 through the 1968 1800 S build series

Engine and Drivetrain Documentation

The 1961–1973 Volvo P1800 service manual delivers extensive technical data for the B 18 and B 20 engine series. You will find exact measurements for bore, stroke, and compression ratios. It documents cylinder block material specifications, piston clearance tolerances, and valve spring load ratings. Need bottom-end specs? Detailed crankshaft journal dimensions and main bearing shell thicknesses are listed for standard and multiple undersize configurations. The manual also breaks down the transmission system. It outlines gear ratios for the M 40 and M 41 gearboxes alongside final drive specifications for the 4.10:1, 4.30:1, and 4.56:1 ratios used across various production years.

Specifications and Maintenance References

Cylinder head bolt torque values are mapped out in a multi-stage sequence, with final-stage angles clearly specified in the engine assembly data. The B 18 B output is rated at 115 h.p. at 6000 r.p.m. inside the main specification table. Fuel pump pressure maxes out at 0.25 kg/cm2. Additional sections provide wear tolerances for cylinders, valves, and camshafts. Always follow these factory torque specs and clearance tolerances strictly; deviating from original mechanical baselines on vintage drivetrains can compromise vehicle handling or lead to severe engine failure during operation. This documentation serves as a primary source for identifying original build specifications and understanding how factory repair references are structured for these classic sports coupes.