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1952 Ford 8N
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Oil Pressure

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Matt in MO

01-14-2002 11:51:14




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I have a 1952 Ford 8N with intermittent oil pressure readings at the oil guage. When I start the engine, I get a reading. As I work with the tractor, the pressure reading on the guage drops to zero. Any ideas?




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Buz Turner

01-14-2002 18:25:26




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 Re: 1952 Ford 8N - Oil Pressure in reply to Matt in MO, 01-14-2002 11:51:14  
I'm assuming that you mean different readings (from higher oil pressure to lower oil pressure after the engine has warmed up) when you say intermittent readings in your question. My 8N behaved similarly. Changing the oil pressure relief spring made quite a difference and costs almost nothing, both in time and money. Good luck.



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Steve IA

01-14-2002 13:22:19




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 Re: 1952 Ford 8N - Oil Pressure in reply to Matt in MO, 01-14-2002 11:51:14  
Oil pressure is an oft discussed issue on this N board and the archives will provide you hours of insight. Basically, it is normal to start with higher oil pressure and have it drop down as the oil warms and thins. Zero is a little low . Couple of things to try. Check your gauge. It might not be accurate. A new one cost ~$15 US if I remember rightly. Make sure the oil line from the T to the guage is clean. It may or may not help, but for a couple 3 bucks, replace the high pressure relieve valve and spring. Make sure you are using the right weight oil. In winter, I use 10W30, summertime straight 30w. If after this, you still have 'zero' OP when warm you might want to consider some more major mechanical work. Others will be along soon that can advise you better on that. Luckily, the items I mentioned above raised my OP from 20 cold/2 hot to 35 cold/ 18 hot. Good luck Steve 8N 169302

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