Thankyou all for your replies. As you state it seems that there is a lack of vacuum behind the govenor diaphram. As I removed the petrol mix from the injector pump only by opening the bleed screw and flushing with clean diesel it seems unlikely that a pipe connection is the cause. Therefore I assume that it could be a leaking diaphram. As far as I know this has never been changed since the tractor was new. Could a leak have been caused by the engine revving and backfiring? Also is there a way of checking for diaphram(or pipe) leakage without disassembling the pump/govener? I have the appropriate fordson major repair manual and can follow this to the best of my ability although it is a little complicated in the injector pump section.(pages 74 to 98) And I do not have the specialised tools necessary for reassembling and callibrating the injector pump. Any advice much appreciated. Cheers JRG1.
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Today's Featured Article - Restoration Story: Fordson Major - by Anthony West. George bought his Fordson Major from a an implement sale about 18 years ago for £200.00 (UK). There is no known history regarding its origins or what service it had done, but the following work was undertaken alone to bring it up to show standard. From the engine number, it was found that this Major was produced late 1946. It was almost complete but had various parts that would definitely need replacing.
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