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Belt for Twin IGN Distributor. A design fault on engines up to August 1993 that you MUST fix if not already done so is to add ventilation to the distributor to prevent ozone perishing the distributor drive belt. If this breaks you will be running on one plug per cylinder and will end up with poor performance and possible damage.The solutions is to also fit a Venting kit, please see below.Fits:Porsche 964 1990-94
Distributor Vent Kit. 964 Ventilation Kit includes: - Distributor ventilation connection (A) - Rubber Grommet (B) - White Grommet connector (C) - Hose (D)HOW TO FIT: Firstly prise of the oval plate arrowed on the distributor with a screwdriver. Then remove the large black air guide pipe as we need to drill a hole in it at the green dot. The pipe removes by loosening jubilee clips at top and bottom. You will also need to remove two sensor connectors on the pipe. I also removed the two sensors near the distributor so that I had easy access to the plate. Drill at 18mm hole in the pipe, 40mm to the right of the tail light ventilation nipple. Deburr the hole and remove all shavings. Install the rubber grommet (B) into the hole and install the white connector (C) into the grommet.Install the distributor connector (A) into the hole in the distributor where the plate was. Finally refit the air pipe and connect back up all the sensors. Install the hose (D) onto the new distributor and air pipe nipples and route Fits:Porsche 964 1990-94
