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Ford Tractors Discussion Forum
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OIL PRESSURE

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8-N Nut

07-06-2005 19:44:35




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Had my Ford 600 apart to work on it! (Rings and rod bearings replaced) Put it back together. Did a check start. (15 seconds) No oil pressure. Do I need to prime the oil pump? If so, How?
TIA




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txgrn

07-07-2005 13:47:35




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 Re: OIL PRESSURE in reply to 8-N Nut, 07-06-2005 19:44:35  
Didn't read the other posts, but any time I do a whoopie to an engine, the plugs/injectors are left out; fuel off and I spin her till I get oil pressure then keep spinning till I see oil in the valve train. Then I close her up and fire it off. If no oil or press I go a looking.

Vaseline is a good way to prime a pump.

Mark



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gerard

07-07-2005 09:21:08




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 Re: OIL PRESSURE in reply to 8-N Nut, 07-06-2005 19:44:35  
If you"ve forgotten to oil crank bearings before assembly, or not oiled oil pump to enable it to suck up oil, you might have to use a dodge I used when I forgot to pre-lube an oil pump many years ago - remove oil light switch or other access into oil gallery and rig up a means of pouring oil in. Leave for a while then apply an air line to drive oil to pump.
If you HAVE lubed everything, I"d crank it until oil pressure appears. Some engines can take ages to fill oil galleries and filter, etc. The perkins H6-354 used to take over a minute.

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Dan

07-07-2005 06:01:37




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 Re: OIL PRESSURE in reply to 8-N Nut, 07-06-2005 19:44:35  
I just rebuilt my NAA a few months ago, and did quite a bit of research. First of all - you cannot spin the engine fast enough with the starter to build oil pressure on our 134ci engines (and you can't with the hand crank either I discovered). I packed the inside of the oil pump with assembly grease to prime it for starting when I had it apart. Since it sounds like you already have yours back together, I would prime it by pulling your distributor and spinning the oil pump shaft with a drill like Richard said. This way, no engine parts are moving before the pump is primed.

You did use assembly grease or oil on the rod bearing surfaces before you re-assembled didn't you?

Good luck,
Dan

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Richard H.

07-07-2005 04:58:01




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 Re: OIL PRESSURE in reply to 8-N Nut, 07-06-2005 19:44:35  
I posted where to find a distributor shaft a couple post below. Get one of those, they are about a foot long, put it in a strong drill motor and into the pump and crank clock wise watching your gauge. Pouring oil over the pump will only make the pump oily on the outside ,it gets it"s oil only from the sump. If it is a new pump you sould have put oil in it to prime it before installing it.



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DaveH(NY)

07-07-2005 03:25:57




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 Re: OIL PRESSURE in reply to 8-N Nut, 07-06-2005 19:44:35  
You can try pulling the distributor and pouring oil into the top of the pump, or remove the plugs, remove the oil fill cap and block the opening with a rag and blow compressed air into the dip stick hole while cranking the engine, DON"T run your engine to get the oil pressure to come up, cranking with the starter is fine but running it will do damage.



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