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    4020 injection pump

    I recently had the metering valve stick in the injection pump on my 1971 4020. I pulled the pump and had it rebuilt. While it was being rebuilt I asked if them to install the Stanadyne 29111 weight retainer to eliminate the flex ring that routinely fails. I reinstalled the pump about a month ago...
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    4020 D fuel problem

    I went to start my 1971 4020 diesel PS this afternoon. It hadn't been started in 2 to 3 months. I turned the key, the engine cranked over fine but never fired up. Not even a hint of smoke from the exhaust. I suspected that no fuel was getting to the cylinders so I cracked a line at one of the...
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