Ford 640 starting problem

RufusMons · May 25, 2018

Just finished reassembling my Ford 640 after removing the cylinder head to have it machined and to install a new head gasket.

The engine fires at first but surges to very high speed, then backs off, surges again and finally quits and then won't restart, appearing to be flooded. What could be causing this?

RufusMons

Larry NCKS · May 25, 2018

(reply to post at 15:24:39 05/25/18 )

The way you describe it doesn't hit me as a flooding issue. It should be choking and belching smoke if it's flooding. It sounds to me as though there's a carburetor issue or fueling restriction somewhere.

Sean in PA · May 26, 2018

How soon after it starts does the surging occur? If it is right away then I would suspect something wrong with the governor or governor linkage.

Ford 640 starting problem

RufusMons

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Larry NCKS

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Sean in PA

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