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Faunsdale, AL | Cooling the pump is for the ones that’ll crank but no start when hot. It’s a simple test for a worn injection pump. Usually a rotary type since the in-line pumps have an individual pump for each cylinder instead of all cylinders sharing a single pump with the rotary type.
Big block GM starters used to be prone to not cranking when engine was hot. I haven’t seen it on anything since the 1970’s. | |
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Tractor won't crank when hot
