How to prep and start a rebuilt engine
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===Prelube=== | ===Prelube=== | ||
Prelube the engine right before start up. Much is made of getting oil coming from all the pushrods, etc. but as long as the pump is pumping (you will definitely feel the drill labor when the pump is working) and you run the pump long enough to pressurize the system (plumb a temporary gauge to monitor the pressure while priming) and fill the oil filter and galleries, that's good enough- as soon as the engine starts there will be immediate oil pressure, and THAT is what's important- that the engine doesn't run w/o pressure. | Prelube the engine right before start up. Much is made of getting oil coming from all the pushrods, etc. but as long as the pump is pumping (you will definitely feel the drill labor when the pump is working) and you run the pump long enough to pressurize the system (plumb a temporary gauge to monitor the pressure while priming) and fill the oil filter and galleries, that's good enough- as soon as the engine starts there will be immediate oil pressure, and THAT is what's important- that the engine doesn't run w/o pressure. | ||
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| + | It's up to the builder whether to use a pressure vessel (below left) or a manual priming tool to prelube the oil system. Some engines require a pressure vessel because of how the oil pump is driven- some MOPAR engines are like that, for example. But any engine can use a pressure preluber, regardless of the type of oil pump. | ||
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| + | When using a manual priming tool on a Chevy engine (example below right) there needs to be a collar at the bottom of the tool (red arrow) that completes the oil pathway that connects the passenger side to the driver side lifter oil gallery. If this collar isn't included, one side of the engine will not be pressurized and air will remain in the passages. | ||
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| + | The manual tool is spun in the normal direction of distributor rotation with a drill motor. If unsure, the direction of rotation of most common V8 engines can be looked up [http://www.crankshaftcoalition.com/wiki/Category:Firing_orders '''here''']. | ||
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| + | [[File:Pressure preluber.jpg|thumb|left|250px|[http://www.melling.com/Aftermarket/HighPerformance/PreLubeTank.aspx Melling pressure preluber]]][[File:Chevy oil preluber tool.jpg|thumb|300px|right|Manual Chevy prelube tool]] | ||
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| + | A primer tool can be made from an old distributor by grinding the teeth from the distributor gear along with removing the mechanical advance mechanism. | ||
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| + | [[File:PRIMING TOOL CHEVY 001.jpg|thumb|400px|left|Homemade Chevy oil system priming tool]] | ||
===Timing=== | ===Timing=== | ||
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