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How do tell if glo plugs are good in 1710 ford tractor?

April 26, 2017Ford GLO good plugs tractor

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10 Posted

How do tell if glo plugs are good in 1710 ford tractor?

1 Answer

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10 Posted

Unscrew and remove the wires from the top of all the glow plugs. Connect a lamp between the battery positive terminal and the glow plug top connection. If the glow plug is good the lamp will light. Alternatively, if you have a meter available, set to the ohms range and connect between the top connector of the glow plug and the engine block. If the plugs are good the resistances of all the plugs should be a very low and approximately the same. A high resistance plug is a dead plug.