Date registered: Sep 2005
Vehicle: 85' U1300L Holset Turbo VA A/C, 66' Propane 404.1 rock mog, 1975 416 Doka, G500, Volvo C303
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Quoted: 166 Post(s)
The original primer pump is all aluminum and has a whiteish plastic knob on it. These are prone to leaking both fuel and air. You want to replace it with the Bosch black plastic unit. They are cheap and work exceptionally well. They also do not require locking and unlocking to prime like the old stock ones.