Rough idling, leakage at the flange or a piston that won't drop back down are classic signs of a tired SU HS6 on the twin-carburetor B18B in early 140s. This category gathers the wear parts and adjustment details that belong to that specific carburetor setup, so the rebuild can be done part by part instead of replacing the whole carburetor.
Idle speed screw SUHS6 for Volvo PV544, Amazon, 1800, Duett
PV 444, PV 544, Amazon, 1800, 140, 240, 260
$ 4.52
Model year:
1961–1974
Engine:
B18, B20
Gasket float housing for Volvo Amazon 1962-70, PV544 1962-65, Duett 1962-68, 140 1973-74, 1800 1961-68, B18, B20, SU HS6
PV 544, Duett, Amazon, 1800, 140
$ 3.96
Model year:
1961–1973
Engine:
B18, B20
System:
SU HS6
Quantity per car:
2
Washer for Volvo PV444, PV544, Amazon, 1800, 140
PV 444, PV 544, Amazon, 1800, 140
$ 3.28
Position:
Front
Model year:
1961–1973
Engine:
B18, B20
System:
SU HS6
Gasket SU HS6 for Volvo PV544 1962-65, Duett 1962-68, 1800, B18
Duett, PV 544, Amazon, 1800, 140
$ 3.16
Model year:
1961–1968
Engine:
B18
System:
SU HS6
Washer throttle shaft SU HS6 carburettor for Volvo PV544 1962–1965, Duett 1962–1968, Amazon 1962–1970, 140, 1800, B18, B20
PV 444, PV 544, Amazon, 1800, 140
$ 2.83
Mounting position:
Choke linkage
Model year:
1961–1973
Engine:
B18, B20
System:
SU HS6
Idling screw spring, SU carburettor, for Volvo 140, 240
PV 444, Duett, PV 544, Amazon, 1800
$ 2.60
Model year:
1957–1974
Engine:
B4B, B14A, B16, B18, B20
Choke clamp screw for Volvo PV544 1962-65, Duett 1962-68, Amazon 1962-68, 1800 1961-68, SU -66
PV 444, PV 544, Amazon, 1800, 140
$ 2.37
Model year:
1966
Engine:
B18
Info:
SU
Quantity per car:
2
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The group includes metering needles and jets that control the mixture, gaskets and washers that seal against air leaks, plus springs, spring washers, screws and retainers for mounting and the damper piston. During an overhaul, a worn metering needle and dry gaskets are the most common things to check – both cause lean or leaking running behaviour. Because the B18B ran twin carburettors, needles and jets should be matched equally in both carburettors for even running.