CAT 3412 B Genset fuel injection pump.
CAT 3412 B Genset engine serial # 38S8089, Arr.#4N2246
Has anyone ever changed the fuel injection pump plunger assembly top O-ring just below where the fuel injection lines hook up? CAT says you need a 6V7050 compressor group tool to do the job. Could you not just bring each piston 1 at a time up on valve overlap with the injection pump camshaft on the base circle for that pumper unit with minimal spring force pushing up and hold the pump group down with a 8S2244 extractor and slide the bushing up to change the O-ring below. If you did them all in firing order but on the top of the exhaust stroke 1 at a time, could it be done?
Has anyone had any experience changing these O-rings that leak from hardening, even though the unit has next to no hours? (1039 hrs) Has block heaters on that made the O-rings hard.
Thanks!
Simon
CAT 3412 B Genset engine serial # 38S8089, Arr.#4N2246
Has anyone ever changed the fuel injection pump plunger assembly top O-ring just below where the fuel injection lines hook up? CAT says you need a 6V7050 compressor group tool to do the job. Could you not just bring each piston 1 at a time up on valve overlap with the injection pump camshaft on the base circle for that pumper unit with minimal spring force pushing up and hold the pump group down with a 8S2244 extractor and slide the bushing up to change the O-ring below. If you did them all in firing order but on the top of the exhaust stroke 1 at a time, could it be done?
Has anyone had any experience changing these O-rings that leak from hardening, even though the unit has next to no hours? (1039 hrs) Has block heaters on that made the O-rings hard.
Thanks!
Simon
Cat 3412 B Fuel Injection Pump
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