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Latest and Greatest Proper Engine Break in Procedure

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Old 05-15-2018, 10:41 AM
  #41  
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Default Electric Break In Machine = Best

Hi ALL, I have used a method to "break in" the newly assembled engine with NO Oil Pan fitted.

The Top End engine is placed onto an electric machine that spins the crankshaft, no sparkplugs, no oil pan fitted, thus no fire.

The motor current is measured AND drops with time, after an hour of operation we find it stable.

THUS ANY DEBRIS will find the bottom tray, NOT the Oil Pan bottom.

Oil Pressure is also known.

Lance
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Old 05-15-2018, 10:55 AM
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Originally Posted by Pantera EFI View Post
Hi ALL, I have used a method to "break in" the newly assembled engine with NO Oil Pan fitted.

The Top End engine is placed onto an electric machine that spins the crankshaft, no sparkplugs, no oil pan fitted, thus no fire.

The motor current is measured AND drops with time, after an hour of operation we find it stable.

THUS ANY DEBRIS will find the bottom tray, NOT the Oil Pan bottom.

Oil Pressure is also known.

Lance
It seems like that method would fail to load the rings since there is little to no cylinder pressure.
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Old 05-15-2018, 11:03 AM
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Originally Posted by Pantera EFI View Post
Hi ALL, I have used a method to "break in" the newly assembled engine with NO Oil Pan fitted.

The Top End engine is placed onto an electric machine that spins the crankshaft, no sparkplugs, no oil pan fitted, thus no fire.

The motor current is measured AND drops with time, after an hour of operation we find it stable.

THUS ANY DEBRIS will find the bottom tray, NOT the Oil Pan bottom.

Oil Pressure is also known.

Lance
Where does the oil go if not to the pan and picked back up?
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Old 05-15-2018, 12:59 PM
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Originally Posted by ddnspider View Post
Where does the oil go if not to the pan and picked back up?
He collects the dirty break in oil outside the engine; he feeds new oil straight into the pump.
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Old 05-15-2018, 01:32 PM
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Originally Posted by joecar View Post
He collects the dirty break in oil outside the engine; he feeds new oil straight into the pump.
I'm more interested in how he continuously supplies oil to the engine to spin and build oil pressure for an hour without a closed loop (i.e. no pan for the pickup to suck from). Could be an interesting setup.
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Old 05-16-2018, 10:37 AM
  #46  
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Default Filtered Oil Tank

Hi All, I will add that the OEM LS Oil Filter, my stocked Subaru four cylinder filter is LARGER, will cause an oil restriction allowing the BY PASS TO OPEN soon when fitted to a new assembled engine.
My bench dyno IS EQUIPPED with a Filter Adapter, -12 lines, going into an O-Berg, going to a TWO quart canister filter with a 8 micron cartridge paper filter with visible pleats. I learned NOT TO USE RAGS to wipe parts when the engine is assembled as it caused the O-Berg to go into bypass within the first minutes of engine operation, I use a Special type of Paper Cloth made for engine assemble. (no lint)

The electric run in machine does have a tank/scavenge pump/filtration system to reclaim the spent oil.

I also install the Spark plugs after one hour of operation with additional run in time.
I also measure cylinder pressure when in operation.

Thus view this machine as a Shop Air Compressor.

Lance
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Old 05-16-2018, 10:59 AM
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Sounds a lot like a motor flush being repurposed.
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Old Today, 12:43 PM
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Originally Posted by ddnspider View Post
You basically said what Trendsetter said in post 31. As far as priming, after seeing some stuff online and realizing you can gravity feed the oil pump through the plug in the DS of the block and then crank it with no spark, seems like a no brainer to do it before you go live. Can't hurt and only helps get oil going quicker.
Basically what I did, although I used the pressure sprayer method through that plug and fed in 4 quarts. Turned the crank by hand a few times. Probably took about 2 hours to get it all through. I will confess I never saw oil out of the pushrods, which I was worried about. But cranked it with no fuel and got a reading on the oil pressure gauge in under 5 seconds which greatly helped my comfort level. Fired it up and had instant pressure.

I agree at minimum filling up the oil pump through that port is too easy to pass up for quicker oil flow at first start. Hearing that some do the crank and pray, and having 10-15 seconds of running before seeing pressure would give me a heart attack knowing what I spent on my longblock.
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