SHEET AS 4176494 - Caterpillar

Engine:
3508 (S/N: 1ZF1-UP; 6TJ1-UP; 95Y1-UP; 96Y1-UP; 97Y1-UP; 23Z1-UP; 68Z1-UP; 69Z1-UP; 70Z1-UP)
3512 (S/N: 3YF1-UP; 2WK1-UP; 1LM1-UP; 49Y1-UP; 50Y1-UP; 51Y1-UP; 24Z1-UP; 65Z1-UP; 66Z1-UP; 67Z1-UP)
3516 (S/N: 4XF1-UP; 9KF1-UP; 4MJ1-UP; 5SJ1-UP; 27Z1-UP; 28Z1-UP; 29Z1-UP; 71Z1-UP; 72Z1-UP; 73Z1-UP)
3516 (S/N: 25Z1-UP)
Engine News, SEBD9183, 1 March 1992, "Unit Injector Test Specifications have been Updated". Disregard the article. Refer to the information below.The 1U-6661 Pop Tester Gp was discontinued. The 6V-4022 Fuel Injector Tester was cancelled and replaced by components that were also cancelled or discontinued. The testers were rendered obsolete by increased injection pressures and by performance requirements for injectors.Do not use the 1U-6661 Pop Tester Gp or the 6V-4022 Fuel Injector Tester to test unit injectors.