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Masseynut(Australia)
05-15-2008 03:21:03
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Re: mf-35 fuel filter change in reply to RICK165, 05-14-2008 17:39:20
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Not a great deal in bleeding the fuel system on these tractors, if the gauze on the end of the fuel tap is clear, and the lift (primer) pump is working effiecently. Undo the bleed screw two turns, the one located in the main body of the injection pump. It has a small 5/16" A.F. head. Now prime the lift pump lever until you get a full flow of fuel from the bleed screw, with-out any air evident. If you are unsure if air is evident, completely remove the screw. Once you are satisfied the injection pump is bled, tighten the screw. Now slacken one of the fuel injection delivery pipes at either one of the injectors on the cylinder head. Pull the throttle to half way position, and crank the engine. When fuel is seen dripping from the slackened pipe, tighten it. Your tractor may have already started to fire up at this stage. If not, slacken another delivery pipe on the cylinder head, and repeat the cranking process. The tractor should start at this stage. I tend not to worry about slackening the bleed screws on the filter assemblies during the process, as, I said, if the lift pump and tap gauze are ok, this should not be necessary. If the tractor still is hard to get to fire up, you may have injection pump problems (low delivery pressure), from a worn pump, which may not show up until you go thru the filter changing procedure. Hope this is of some asistance, regards, Evan.
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