Re: engine problem....help?!

Posted by txblu on December 07, 2004 at 09:58:58 from (199.46.199.231):

In Reply to: engine problem....help?! posted by cootbruce on December 07, 2004 at 08:28:32:

Only know what you tell us so here goes.

Moving the engine about could have dislodged some crud in the fuel system, say like crud at the bottom of the carb bowl got into some meterng jets. (You rebuilt the carb, but did you really rebuild it; i.e. clean out all the teenie weenie ports?).

Surging is inadequate governor control. You are over and under supplying your engine with the needed elements to run it. You could have damaged your governor linkage when removing especially on Tecumseh engines (my experience)...or if internal (like the Tec.) you may have gotten some sludge or other crud in the gov. bearings/balls. Remember the governor is rpm sensitive. What did you do that would affect the ability of your carburetor to be controlled as a function of rpm's.......speed up, gov shuts down air supply via carb throat butterfly......converse the converse.....sloppy linkage (incorrectly adjusted...length) means sloppy response of fuel/air to engine requirements.

Not showing a charge means that you broke a wire in handling, or pulled a lug off a terminal, or shorted out a terminal in your charging system. May have accidentally sparked the VR and welded some contacts.

Voltage and engine surge are 2 different ckts. Only connection could be via ignition supply voltage bouncing up and down and that's not possible as the battery has control (larger energy source) and voltage output not that much different at low and high rpm's as compared to engine off voltage value (0).

HTH

Mark

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