Oil backflow prevention kit.
Sold as a complete kit. 1 necessary per car.
This oil backflow kit incorporates a check valve between the oil tank and engine which prevents smoking on start up for 911 and 930 models from 1973-89.
The issue is due to the oil tank sitting higher than the engine oil pump. Gravity creates a positive pressure on the pump and slowly fills the engine case with time. Once the car is started, the cars smokes heavily
Our complete kit includes a model specific check valve with upgraded suction hoses and stainless-steel clamps ready for installation.
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)