Machines | How Oil Pressure Works - EricTheCarGuy
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How Oil Pressure Works - EricTheCarGuy http://www.ericthecarguy.com/ Here is the second offering from last weeks set of videos. The most important thing to note with this is that oil pressure is not created by the pump but rather the resistance to the outlet flow of that pump and part of that resistance is the clearances between the bearings and the other parts inside the engine. If nothing else I hope you are entertained, enjoy! --- Click below and Stay Dirty Visit me at EricTheCarGuy.com http://ericthecarguy.com/ Visit EricTheCarGuy Forum http://www.ericthecarguy.com/forum/default.aspx Visit my Facebook Page: http://www.facebook.com/EricTheCarGuy --- ETCG Due to factors beyond the control of EricTheCarGuy, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. EricTheCarGuy assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. EricTheCarGuy recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of EricTheCarGuy, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not EricTheCarGuy.
Comments
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Good stuff!
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Thank you man it is good to know
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does red line an engine effect oil pressure, and cause oil pan gasket leak?
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I have a question I am wanting to hook a stage 3 turbo kit up to my 99 dodge neon dohc were is the best place to put the oil feed line at that goes to the turbo?
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I agreed with Andiar Rohnds, you are the best and thanks for your efforts.
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Though this clip might be 6 years old, hopefully someone could hear my pleas.
My vehicle (Suzuki Swift Sport 1.6m ZC31) has been visiting the same mechanic for about 5 times now for the same issue with con rod bearing damages. From replacing of con rod bearings, skimming of the crankshaft, a full overhaul, replacing of oil pumps, cannibalising all parts from another ZC31, non of them seem to have fix the problem. My con rod bearings are still getting damage during the duration of engine break-in even when i drive the vehicle at below 4k rpm. -
When working as designed, moving parts on an internal combustion such as pistons, camshafts, rocker arms, connecting rods and crank shafts float on a thin film of oil in the engine. But contrary to Eric's semantics, it's the oil pump that produces both the volume and flow of oil necessary to produce the oil pressure between the moving parts and the oil passages of an engine.
Not only tighter clearances but higher oil flows equal higher oil pressures for an engine and are the primary reason for higher capacity oil pumps. And while true that clearances in an engine produce resistance to flows from an oil pump they're but ONE (1) of the components for engine oil pressure. Pumped oil volume velocity and oil viscosity are also factors.
If you don't believe that the oil pump is the Genesis for oil pressure in an internal combustion engine just remove it from the engine and watch the oil pressure drop to zero and the engine crater!
The name of the game for properly lubricated engines is to maintain a thin film of oil at ALL times between moving parts! New crank shaft bearings, cam shaft bearings, higher volume oil pumps and even lower viscosity oils can help do that unless the engine is so worn that the pump and viscosity can no longer compensate for the increased clearances and provide the proper protective film necessary.
For years, racing engines have employed this knowledge and use much larger clearances than day to day automotive engines in order to reduce engine friction and improve horsepower but those high performance engines also use insane oil pump volumes to survive long enough to win a race. -
Not to be a "Mr.knowitall", but... clearance only regulates pressure,
pressure is actually created by fuel combustion. Gravity "creates" water pressure if you have a water tower, you we're "regulating" water pressure by restricting flow with your thumb. Otherwise great video ;) -
Not to be a dick, but... clearance only regulates pressure,
pressure is actually created by fuel combustion. Gravity "creates" water pressure if you have a water tower, you we're "regulating" water pressure by restricting flow with your thumb. Otherwise great video ;) -
I have no oil pressure after oil change in a 97 Tacoma every time I change the oil it takes about 5 min for the oil light to go away what could this be ? After the light goes away the light and no longer comes on after every start except for the 3 sec it's on after it starts
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Thanks for this awesome video👍🏼 on my bmw 2011 520d a massege came up saying oil pressure low stop and call mobile repair.... I was half a mile from home so i drove home, after parking up i tried to restart to check if i had oil in the engine it didnt start... Help anyone!
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so helpful dude.
for student of auto tec. -
Good video , Thanks
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Mate, you re alright. Good on you, Eric.
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u are the best internet dad ever ;_;
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Just put a heaver oil in it and keep on truckin.
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Cheers mate good video has been very helpful!!
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Eric i have a 2004 jeep Cherokee Laredo 4.0 and my only problem is after i drive it for half hour or so when i come to a complete stop my oil pressure cuts all the way out but my motor sounds and runs fine i changed the oil pressure switch and still the same any ideas?
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every time I had a oil light flashing the problem was always the rod bearings gone bad
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So what's the typical cause for high oil pressure. .bad piston rings blow by blockage. ..the oil level in my truck is perfect.figured fuck it scrap the engine and rebuild a 302 I have in the garage but I'm curious on what's the most common issue