EXPERTEC Technical Service Bulletins (84-63)

Publication date: 1984-03-12
Reference number: 84-63

EXPERTEC TECHNICAL SERVICE BULLETINS

TECHNICAL SERVICE BULLETIN

Reference Number(s): 84-63, Date of Issue: 03/12/1984

POOR PERFORMANCE / POWER LOSS INJECTION PUMP TIMING

Model(s): 1978-84 Chevrolet Impala, Caprice, Monte Carlo, Malibu, El Camino, Chevette & C-10 Truck

(Equipped with Diesel Engines)

Bulletin No.: 84-63

Date: March 12, 1984

SERVICE INFORMATION

Anything that effects the fuel pressure to the injection pump such as a plugged filter or pinched line will change the timing. A restricted fuel return line will also cause a timing shift. If the pump timing is adjusted, and later it is discovered that the fuel system is restricted, the timing system may be incorrect. Should this situation be encountered, it will be necessary to check and adjust pump timing as necessary.