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Vintage Diesel and Oil Engines Fairbanks Morse, Lister, Petter, Witte and other pump injected Diesel oil engines.

Vintage Diesel and Oil Engines

Fairbanks Morse 15 hp Y Oil Engine


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  #1  
Old 12-10-2016, 09:32:39 PM
smokinhot smokinhot is offline
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Default Fairbanks Morse 15 hp Y Oil Engine

Does anyone know how to renew the seat for the check ball in the fuel pump on a Y engine? It's cast iron and pitted real bad.
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Old 12-10-2016, 09:44:48 PM
Dave Myers Dave Myers is offline
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Default Re: Fairbanks Morse 15 hp Y oil engine

I did one by using a ball bearing the same size as the check ball with a dowel glued to it and some lapping compound. Spun it by hand. Worked well.
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Old 12-11-2016, 12:54:39 AM
old sparky old sparky is offline
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Default Re: Fairbanks Morse 15 hp Y oil engine

find or make a drill bit fit the seat to initially cut it lightly then lap it with grinding compound on a ball brg brazed to a steel rod
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Old 12-11-2016, 01:08:36 AM
slip knot slip knot is offline
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Default Re: Fairbanks Morse 15 hp Y oil engine

many years ago I watched a guy use a valve seat grinder to resurface a foot valve seat in a water well.

depending on the size you may be able to use one of the mounted stones for a die grinder. cut to the desired shape with a diamond wheel dresser.
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Old 12-11-2016, 11:35:27 AM
smokinhot smokinhot is offline
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Default Re: Fairbanks Morse 15 hp Y Oil Engine

Does the angle of the drill bit and the angle of the ball bearing have to be a perfect match in order to get it to seat? I only have 1 shot at this and I don't want to mess it up. Thanks for all of the replies ,guys
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Old 12-11-2016, 07:40:58 PM
Combustor Combustor is offline
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Default Re: Fairbanks Morse 15 hp Y Oil Engine

Is there a way you can gauge the seat angle before drilling? Maybe oil the hole and press a piece of modelling clay or something in there and remove and use it to gauge the angle when you grind the drill? Then perhaps drill a test piece and check the ball seating with some bearing blue. Many ways to skin a cat.
Combustor.
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Old 12-12-2016, 10:52:39 PM
Matt Montague Matt Montague is offline
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Default Re: Fairbanks Morse 15 hp Y Oil Engine

The ball bearing trick works well, I drilled a small hole in the ball and fit a short piece of tig rod in the hole. Silver solder or tig weld it then you can spin it with your hand or a drill motor.
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Old 12-16-2016, 11:14:15 PM
smokinhot smokinhot is offline
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Default Re: Fairbanks Morse 15 hp Y Oil Engine

I found a round stone and was able to renew the seat that way. Thanks for the info.
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