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Priming rebuilt motors

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Old Feb 7, 2003 | 10:46 PM
  #1  
rotten's Avatar
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From: Renton, WA
Default Priming rebuilt motors

I'm curious as to what proceedures people use to start a motor for the first time.

Was thinking that using the starter to crank the motor without the fuel and spark to get the oil pressure up would be the way to go. But I have also saw on Two Guy's Garage the other day that they used this pretty cool high pressure oil can thing that is basically oil under pressure that they T into somewhere and it presurizes the system, gets the oil flowing so there is plenty of lubrication.

Anyone have any comments?
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Old Feb 8, 2003 | 01:03 AM
  #2  
Nameless RB26's Avatar
 
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From: WA
Default Re: Priming rebuilt motors (rotten)

I don't know how well that thing they used could pressurize everything. It takes motion in the crankshaft to get proper lubrication going for the crank main and connecting rod bearings..

I don't see how you could just pressurize it and squeeze oil into it, but I'm not too sure, I've never done that. If you're rebuilding the engine.. the easiest way is to oil it by hand. But for an engine that's been sitting for a long time.. the best thing I'd guess you could do would be to lubricate the cylinders and crank the engine by hand for a couple of cycles. There's probably enough oil in the bearings from the last operation to protect it for a few seconds untill full circulation. Can't really do much for the crankcase untill the engine is running and the oil is heating up.

I'm not a professional.. but this is my insight. Anyone else have comments?
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Old Feb 8, 2003 | 01:13 AM
  #3  
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Default Re: Priming rebuilt motors (Nameless)

Ya there is a device that pushes oil through at high pressure. Some shops do this when putting engines together. When I built my B20, the first time I just disconnected the distrubuter harness and let it crank for a like 5 secs. However , the downside to that was that it still shot fuel in there and a big cloud of nastyness came out the first time...so be sure to undo the injector clips too
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Old Feb 8, 2003 | 02:53 AM
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From: Cincinnati,, Oh
Default Re: Priming rebuilt motors (rotten)

I'm curious as to what proceedures people use to start a motor for the first time.
I just pull the spark plugs and ECU fuse and whirl it over until the oil light goes out.
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Old Feb 8, 2003 | 06:45 AM
  #5  
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From: MD
Default Re: Priming rebuilt motors (Chiovnidca)

when my zc went in I just turned it over to pressurize all the goods, and the started it up
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Old Feb 10, 2003 | 07:02 AM
  #6  
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tpr
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From: Garner, NC, usa
Default Re: Priming rebuilt motors (rotten)

I pack my oil pump with white lithium grease. This allows the pump to draw a vacuum pulling oil up into the engine quickly. I usually just leave the plugs out while cranking till the oil light goes out. The engine is then primed and ready to start. Good luck!
PS Always use assembly lube (available at your parts store) when assembling the engine on all main and connecting rod bearings.
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