The distributor is the nerve center of the mechanical ignition system that performs two specific functions. First, it induces the ignition coil to create a spark at a precise timing that is required. Second, it directs the spark to the proper cylinder. To do both jobs, the distributor greatly relies on the distributor rotor and the distributor cap. The rotor is the rotating arm located inside the cap, specifically on top of the distributor shaft. The ignition coil is connected to the rotor, which rotates inside the cap. The rotor spins past a series of contacts, particularly one contact per cylinder. As its metal tip passes each contact, a high voltage pulse is generated by the coil. This pulse arcs across the small gap between the rotor and the contact, and continue to travel down through the spark plug wire and to the spark plug at the correct cylinder.

During tune-up, one of the things that you usually replace is the distributor rotor. This is for the fact that it is constantly subjected to heat and the massive voltage from the ignition system that gradually takes toll on its life. It eventually wears out mainly because of the arcing. So if you see some early signs of wear, replace it at once before it cause serious complications.

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1968 - 1971 BMW 1602 Distributor Rotor
Distributor Rotor Bosch Distributor Rotor
Years: 1968, 1969, 1970, 1971
App: BMW 1602 Distributor Rotor
Brand: Bosch
Part #: F2020-24501
Fit Notes: 1 234 332 074


Price: $9.95 CDN
Quantity
Make Model Year Range Chassis Engine
BMW 2002 1968 - 1976
Volvo 140 1967 - 1968 B18
Volvo 160 1969 - 1975 B30
Volvo 240 1976 - 1982 B21
Volvo 240 Turbo 1981 - 1985 B21


1991 - 1993 BMW 850I Distributor Rotor
Distributor Rotor Bosch Distributor Rotor
Years: 1991, 1992, 1993
App: BMW 850I Distributor Rotor
Brand: Bosch
Part #: F2020-24522
Fit Notes: Bolt on
2 required


Price: $29.95 CDN
Quantity
Make Model Year Range Chassis Engine
BMW 325 1987 - 1988 E30 M20
BMW 535i 1985 - 1988 E28 M30
BMW 733i 1978 - 1984 E23 M30
BMW 735i 1985 - 1987 E23 M30
BMW 850Csi 1994 - 1995 E31 M70
Volvo 780 V6 1987 - 1990 B280


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