Engine oil flow diagram
#1
Rennlist Member
Thread Starter
Engine oil flow diagram
I've seen it a million times but I've done multiple searches & can't find it. Does anyone have the engine oil flow diagram showing the route of the oil through the engine?
TIA, Hammer
TIA, Hammer
#3
Archive Gatekeeper
Rennlist Member
Rennlist Member
This one?
EDIT: Too slow on the draw.....
EDIT: Too slow on the draw.....
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#8
Craic Head
Lifetime Rennlist
Member
Lifetime Rennlist
Member
Seriously, is this place great or what?
I'm on other car forums and you're luck if the info to crap ratio is 1 to 4 or 5 and you usually have to wait at least a day for anything that will help.
Here? Less than 30 minutes from initial thread start to 2 WSM diagram pages posted. And they were both the right ones!
Nice work gentlemen!
I'm on other car forums and you're luck if the info to crap ratio is 1 to 4 or 5 and you usually have to wait at least a day for anything that will help.
Here? Less than 30 minutes from initial thread start to 2 WSM diagram pages posted. And they were both the right ones!
Nice work gentlemen!
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James3494 (10-26-2023)
#10
Drifting
Is the oil pressure relief valve maintenance free?
Do you ever need to change the spring?
Does it sag with age, reducing oil pressure?
Can it fracture?
In my other car (Cerbera) the pressure relief valve spring fractured and a fragment found its way into the oil pump causing devastation, hence my interest
Do you ever need to change the spring?
Does it sag with age, reducing oil pressure?
Can it fracture?
In my other car (Cerbera) the pressure relief valve spring fractured and a fragment found its way into the oil pump causing devastation, hence my interest
#11
Rennlist Member
Given that Porsche kitted the car with an oil pressure gauge that goes full scale at 5 barg it would seem reasonable that they were not really interested in oil pressure above that mark. The definitive test for oil pressure is specified as a certain pressure at a specific rpm point and the numbers I have in my head are something like 4 barg at 3000 rpm on a fully warmed up motor- hopefully someone will chime in with the exact numbers.
Thus I would conclude that if you are having difficulty making such numbers investigation is clearly warranted but other than that do not be too concerned. If one were to rebuild one's motor then fitting a new spring ought to be a no brainer. Never heard of anyone routinely changing out at a given mileage but on a 30 year old motor why not?
Thus I would conclude that if you are having difficulty making such numbers investigation is clearly warranted but other than that do not be too concerned. If one were to rebuild one's motor then fitting a new spring ought to be a no brainer. Never heard of anyone routinely changing out at a given mileage but on a 30 year old motor why not?
#12
Former Vendor
Is the oil pressure relief valve maintenance free?
Do you ever need to change the spring?
Does it sag with age, reducing oil pressure?
Can it fracture?
In my other car (Cerbera) the pressure relief valve spring fractured and a fragment found its way into the oil pump causing devastation, hence my interest
Do you ever need to change the spring?
Does it sag with age, reducing oil pressure?
Can it fracture?
In my other car (Cerbera) the pressure relief valve spring fractured and a fragment found its way into the oil pump causing devastation, hence my interest
The "rule of thumb", in the high performance engine world, is 10 lbs of pressure for every 1,000rpms, with the oil hot.
However, different engines do have different requirements, depending on how the oiling system is configured, how much bearing clearance is present, and how much the crankshaft flexes at different rpms. For instance, I'd be concerned if my 427 Ford steel crank "Y" block engines didn't have 100psi at 7,000 rpms.
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UKKid35 (02-10-2020)