Oil Circulation Diagram?
Thread Starter
Burning Brakes
Joined: Jan 2008
Posts: 1,077
Likes: 3
From: Roswell, GA
Oil Circulation Diagram?
Since I have my oil tank out and replacing a lot of the hoses, I'm wondering now how the oil flows through all of the components.
I just spend 30 minutes on Google and couldn't find one for the 964. Not sure if it is the same as the 80's 911.
I just spend 30 minutes on Google and couldn't find one for the 964. Not sure if it is the same as the 80's 911.
Thread Starter
Burning Brakes
Joined: Jan 2008
Posts: 1,077
Likes: 3
From: Roswell, GA
Here is what I have and really need to know what is the INLET and OUTLET at the oil filter.
Green - after filtration
Red - before filtration
Yellow - oil cooler (bypass)
964_Oil_Circulation.jpg
Last edited by BigMikeATL; Apr 10, 2013 at 06:30 PM.
Nordschleife Master
Joined: Jul 2007
Posts: 5,613
Likes: 52
From: DFW, TX
The line from under the HE to the oil filter is the outflow from the motor. This flow then gets filtered and makes its way back to the thermostat on that big braided line at the top of the fenderwell. The exposed hardline at the base of the fenderwell that runs from the tank to the bottom front of the motor is the inflow to the motor.
Nordschleife Master
Joined: Jul 2007
Posts: 5,613
Likes: 52
From: DFW, TX
Trending Topics
Three Wheelin'
Joined: May 2009
Posts: 1,720
Likes: 5
From: West Sussex
Great diagram above. Just to add that the parts marked 24,26,29,28 make up the feed from the oil tank to the oil pump and part 54 is the outlet from the scavenge pump that then feeds up into the oil filter housing.
Aside from the theoretical oil flow of course there is the actual oil flow which is more like this
Aside from the theoretical oil flow of course there is the actual oil flow which is more like this
Rennlist Stories
The Best Porsche Posts for Porsche Enthusiasts
9 Features and Characteristics That Only Porsche People Understand
Verdad Gallardo
I've Written 500 Rennlist Articles: Here's How Porsche Has Changed Along the Way
Joe Kucinski
10 Most Unnecessary Porsches Ever Built (And Why We Love Them)
Verdad Gallardo
Porsche 911 GT3 S/C vs 718 Spyder RS: 10 Categories, One Winner
Joe Kucinski
This Builder Is Turning Heads With Its Slantnose 911 Creation
Verdad Gallardo
Porsche 911 GT3 Artisan Edition Pays Homage to Japanese Culture
Verdad Gallardo
Porsche Reveals Coupe Variant of the Electric Cayenne With a Fresh Look
Verdad Gallardo
10 Porsche Colors That Have More Personality Than Most People
Verdad Gallardo
Guntherwerks' Final Speedster Creation Is the Ultimate Porsche Restomod
Verdad Gallardo
Three Wheelin'
Joined: May 2009
Posts: 1,720
Likes: 5
From: West Sussex
Your instinct is sound, the 993 added a filter between the tank and pump. It is not unheard of for a dirty tank to ruin a newly built engine as grot is suck in and pumped round the engine.
IHI KING!
Rennlist Member
Rennlist Member
Joined: Aug 2001
Posts: 13,400
Likes: 229
From: Nashua, New Hampshire, USA
Great diagram above. Just to add that the parts marked 24,26,29,28 make up the feed from the oil tank to the oil pump and part 54 is the outlet from the scavenge pump that then feeds up into the oil filter housing.
Aside from the theoretical oil flow of course there is the actual oil flow which is more like this
Aside from the theoretical oil flow of course there is the actual oil flow which is more like this
Thread Starter
Burning Brakes
Joined: Jan 2008
Posts: 1,077
Likes: 3
From: Roswell, GA
Three Wheelin'
Joined: May 2009
Posts: 1,720
Likes: 5
From: West Sussex
It can be done, but I think you'd need to make it part of an engine build as you need to pull some plugs from the oil galleries in the case to fit the oil filter console. BTW the 964T has a similar setup. Basically they just blocked up the ports in the case that were used for the engine mounted oil cooler on earlier cars when they made the 964, and then they opened them up and used them again on the 964T and 993 this time for the oil filter console for the second oil filter. From what I read the main concern for the 993 was to keep the hydraulic tappets/lifters happy.
https://rennlist.com/forums/964-foru...-engine-2.html
https://rennlist.com/forums/964-foru...-engine-2.html