
Air filter SU 3-bolt high performance stainless front for Volvo B18
PV 544, Duett, Amazon, 1800, 140
- Position:
- Front
- Model year:
- 1961–1973
- Dimensions:
- Height 65mm, diameter 150mm
- Thread:
- 5/16"
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Fuel starvation on a hot engine, a leaking diaphragm or a pump that no longer builds pressure to the twin carburettors are classic symptoms of a tired fuel supply on the B18B engine in early 140s. This category gathers parts that keep the flow even between tank and carburetor on the twin-carb B18B.


PV 544, Duett, Amazon, 1800, 140

Duett, PV 544, Amazon, 1800, 140

PV 544, Duett, Amazon, 1800, 140

Duett, PV 544, Amazon, 1800, 140

PV 444, PV 544, Amazon, 1800, 140

PV 544, Amazon, 1800, 140, 164, 240

1800

Amazon, 1800, 140

PV 544, Amazon, 1800, 140

PV 544, Amazon, 1800, 140

Duett, PV 444, PV 544, Amazon, 1800

1800, 164, 140, 240, 260


899

PV 544, PV 444, Amazon, 1800, 140, 164

PV 544, PV 444, Amazon, 1800, 140, 164

Amazon, 1800, 140

Amazon, 140, 260, 240, 760, 740


PV 544, PV 444, Amazon, 1800, 140, 164, 240
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The group includes mechanical fuel pumps, a repair kit with diaphragm and valves, gaskets and a spacer washer against the crankcase, a non-return valve, plus fuel hose. Because the B18B sits in the very earliest 140 model years and was replaced by the B20 from 1968, the pump mount and spacer washer thickness differ between versions – always check the flange shape and push rod length against the cam when replacing. There are also air filters and an air filter kit here for overhauling the intake at the same time.
A typical check point during a rebuild is the pump's diaphragm and gasket surface: a cracked diaphragm gives both poor pressure and a gasoline smell in the engine bay.