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Ford 9N, 2N & 8N Discussion Forum
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Priming oil pump for first start on new rebuild

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Oldfordguy77

03-04-2013 16:43:41




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I was wondering if anyone new a way to prime oil pump on a 9n on first startup it's a new rebuild! I did not pack grease in the oil pump I heard that's what I was supposed to do!




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Bob

03-04-2013 22:22:39




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 Re: Priming oil pump for first start on new rebuild in reply to Oldfordguy77, 03-04-2013 16:43:41  
Here"s a reasonably affordable way to FULLY pressure lubricate the entire pressure lube system BEFORE any wear occurs from dry cranking or startup. Use a NEW, clean garden prayer with a couple of quarts of engine oil in it, connected to the oil gauge port in the engine block. Pump "er up and lube "er up! SORRY for using a Chevy in the illustration, but it"s all I got at the moment!

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ASEguy

03-05-2013 04:54:58




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 Re: Priming oil pump for first start on new rebuild in reply to Bob, 03-04-2013 22:22:39  
The long block Caterpillar engine I put in a couple of years ago required prelubrication prior to start up or the warranty was void.



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Bob Purinton

03-04-2013 20:35:46




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 Re: Priming oil pump for first start on new rebuild in reply to Oldfordguy77, 03-04-2013 16:43:41  
My '48 8n sat for almost 30 years before I got it running. I poured about a quart of oil in the oil filter housing and it must've primed the pump by running back through the lines to the pump. When it started it went to 35 lbs and stayed there until it warmed up a little. I had, also, turned it oover a few times with no spark so it may have helped some doing this.



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teddy52food

03-04-2013 19:21:31




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 Re: Priming oil pump for first start on new rebuild in reply to Oldfordguy77, 03-04-2013 16:43:41  
Have a friend help you pull it with the ign off untill it has oil pressure.



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HCooke

03-04-2013 16:46:04




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 Re: Priming oil pump for first start on new rebuild in reply to Oldfordguy77, 03-04-2013 16:43:41  
Remove the large (15/16") bolt on the timing cover. Remove the oil relief valve and spring. Use a pump oil can and put some heavy oil in there.



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Oldfordguy77

03-04-2013 17:00:57




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 Re: Priming oil pump for first start on new rebuild in reply to HCooke, 03-04-2013 16:46:04  
Yes.thats a good way. Do you think a vacuum pump would work to pressure the whole system with oil! Or does if not matter I did use assembly lube putting it together about a year ago!



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Bob Harvey

03-04-2013 17:08:24




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 Re: Priming oil pump for first start on new rebuild in reply to Oldfordguy77, 03-04-2013 17:00:57  
I suspect you are 'pushing the envelope' on the assembly lube. Do as mentioned, add some HEAVY oil - 90 wt gear oil is fine, it will dilute with the small amount required. Put the oil in, button up FAST and crank over with the plugs out and ignition off. You should get a reading on the pressure guage. If you do, put the plugs in and crank it up. Good luck !



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Oldfordguy77

03-04-2013 17:24:00




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 Re: Priming oil pump for first start on new rebuild in reply to Bob Harvey, 03-04-2013 17:08:24  
Thank you Hcooke and bob for your advice I feel relieved now that"s great! And easy enough!!! Many sleepless nights thinking of a dry startup!!!!!



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