The result of a worn out rotor and distributor is a hard start hot, also explained in our diagnostic section. So the grey smoke is the advancement pistion inside the VP44 is starting to wear out and no longer can adjust the timing properly. Attach a timing light to spark plug one and the battery, disconnect the vacuum advance hose from the distributor, and loosen the distributor hold-down slightly. 748 in 130 mm HINO INJECTION-PUMP ASSEMBLY J08C-UK A K 14CG INJECTION PUMP ASSY TICS MD-TI6 TICS 107691-3580 Injection timing aligning mark (3)Fly weight (4)The actual shape Alibaba offers vp44 install and timing 98-02 2nd Gen. The newer VP44, however, is a rotary job with the ability to vary fuel and injection timing based on input from the ECM.
