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Injectionpump lubrication?

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Stefan B

09-02-2000 16:03:39




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Hello!
Exuse me for bad english, I am from Sweden.
I wonder about lubrication oil in Simms injectionpump at Fordson Major 1953. There is no oilplug as on the Power Major, so I toke away a cover on the pump and filld engine oil in it (there was no oil in the pump, just diesel). The oil came emidgetly out from a evacuationpipe at the bottom of the pump. Is that normal, or shall the pump be filld whit oil? The pump runs a bad noise and the engine is hard to start.

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Brian

09-03-2000 11:44:22




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 Re: Injectionpump lubrication? in reply to Stefan B, 09-02-2000 16:03:39  
Stefan,
Another thought! If the noise you here is a clatter then the drive to the pump may be loose or worn.
On a 1953 Major there should be a pointer on the timeing cover and a notch on the front pulley. With these lined up, on the pump, a line should line up with a line on the pump side of the drive. If this does not appear, turn the engine until the front pulley mark lines up with the pointer and look again for the mark on the pump. If the pump marks do not line up when the pulley mark is in line with the pointer, adjust the pump coupling to bring the marks into line.

If your engine has been replaced with a later engine, the pointer and mark on the front pulley has been replaced by a small plate, on the rear of the sump on the pump side of the engine. Remove this plate and a notch can be seen on the side of the hole. Turn the engine slowly until the timeing marks are seen on the flywheel then line up 26 degrees with the notch. Check the marks on the pump. Again, if required, turn the engine again until the pump marks appear. Adjust as required.
This may be the answer to both noise and bad starting. The fibre drive pad may need replacing and can be bought at your local Case/New Holland dealer.
regards
Brian

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Stefan B

09-03-2000 13:25:36




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 Re: Re: Injectionpump lubrication? in reply to Brian, 09-03-2000 11:44:22  
Thank you very much for replying my question!

I will try to check the marks you mentioned, but I must read in a "translation bok" to understand it all! Anyway, I think maybe the injektion timeing (I donīt know if thatīs the right word, maybe you understand anyway) is wrong, becouse even if the engine is hot it wonīt start whitout startgas. It smokes ia lot of diesel, and a strange thing is that the "evacuation pipe" from the injektors back to the dieseltank is dry!

Well, maybe the most possible cause of the starting problem is that the engine is worn out?
Luckely there is no problem finding spare parts here in Sweden, Fordson were very common here.

Thanks!
Stefan.

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Brian

09-04-2000 04:38:43




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 Re: Re: Re: Injectionpump lubrication? in reply to Stefan B, 09-03-2000 13:25:36  
Stefan,
Your English is far ahead of my Swedish. I only know one word. ABBA!!!!
Do not use "startgas". You will damage the engine.
What colour is the smoke? If it is white you may have a timeing problem.
regards
Brian



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Brian

09-03-2000 05:23:17




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 Re: Injectionpump lubrication? in reply to Stefan B, 09-02-2000 16:03:39  
Stefan,
There should be no oil in your pump. The only time oil should be used is when the pump has been completely dismantled and oil is needed to lubricate the workings until the pump fills with diesel.(source, "Fordson Major Workshop Manual 1954. Chapter: The Diesel Engine Fuel System. page 78 and page 86).

The little overflow pipe is to get rid of excess fuel in the cam box. If a lot of diesel flows from this pipe you have a problem but also, if no diesel has ever come from here you also have a problem.
Do no forget Diesel is a form of light oil. It is not like petrol that tends to "dry" surfaces. In the old petrol/paraffin tractors today, we add diesel to the fuel to ensure that engine parts are lubricated.
Even in the later Simms Minimec pumps where engine oil is used, diesel still forms part of the lubrication system to the pump plungers. You do not find oil in the injectors. Yet the tolerances, pressures and heat are tremendous. Yet diesel is sufficient to lubricate the working parts.
Sounds like your pump may have succumbed to "anno domini" after all, it is nearly 50 years old.
regards
Brian

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