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Crankshaft Volvo B20 (1974-)

Falling oil pressure at warm idle, a dull knock under acceleration or high oil consumption are classic signs of worn bearings and piston rings in the 1,986 cc B20. When the engine is due for a full rebuild, the rotating and reciprocating parts are replaced as a group, since play in one location quickly leads to consequential wear elsewhere.

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Volvo Original
-5%

Pulley for Volvo 140, with A/C

$ 61.98
$ 65.24
You save 5%$ 3.26

140

Engine:
B4B, B14A, B16, B18, B20
Engine:
B4B, B14A, B16, B18, B20
Available

OE number

460328
-5%

Piston ring assembly pliers

$ 52.25
$ 55.00
You save 5%$ 2.75
Engine:
B4B, B14A, B16, B18
Engine:
B4B, B14A, B16, B18
Available

OE number

4234

24 av 43

Categories

The group includes the main bearing set and rod bearings for supporting the crankshaft, the piston set and piston ring set for the cylinders (88.9 mm bore), plus the cam gear set for the valve train. Also gathered here are the seal, protecting plate and screw that belong to the disassembly and reassembly itself.

A typical inspection point during a rebuild is to measure crank pin wear and select bearings in the correct undersize before new shells are fitted – this determines whether the crankshaft can be reused or needs to be ground. The parts cover late B20 engines from 1974 onward.

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