 OT. Video on oil control/overfill. Worth watching IMO |
|
|
|
Porsche, and the Porsche crest are registered trademarks of Dr. Ing. h.c. F. Porsche AG.
This site is not affiliated with Porsche in any way. Its only purpose is to provide an online forum for car enthusiasts. All other trademarks are property of their respective owners. |
|
|
  |
| technicalninja |
 Apr 14 2024, 03:01 PM
Post
#1
|
|
Senior Member  Group: Members Posts: 1,184 Joined: 31-January 23 From: Granbury Texas Member No.: 27,135 Region Association: Southwest Region 
 |
https://www.youtube.com/watch?v=VaTbfvzNbxQ&t=826s
These guys do weird stuff, sometimes it can be applied to the real world. They make windows into a simple 4 cylinder and vid what happens at different fill levels. Why it might be interesting to members... This shit can and will happen inside ANY wet sump engine that is used in high G applications (I.E. SPORTSCARS!) when the oil gets moved around via corning, braking, acceleration, and so forth. Even with the correct level this can be a problem and this video better shows what actually happens than any other I've seen yet. |
   |
 
|
| Spoke |
Apr 15 2024, 09:16 AM
Post
#2
|
|
Jerry Group: Members Posts: 6,978 Joined: 29-October 04 From: Allentown, PA Member No.: 3,031 Region Association: None
|
Interesting how at high revs there's a lot of bubbles in the oil which likely could be picked up in the oil system. Their oil looks more like cooking grease.
|
|
|
|
| technicalninja |
Apr 15 2024, 09:32 AM
Post
#3
|
|
Senior Member Group: Members Posts: 1,184 Joined: 31-January 23 From: Granbury Texas Member No.: 27,135 Region Association: Southwest Region
|
Yep, air entrained into the oil destroys the hydrostatic wedge effect and can allow the crank to actually touch the bearings at speed.
This is DEATH in my book! Fixes are: Better windage trays- can be very helpful as long as the design is correct. Adding an accumulator into the pressure system; Accusump. This is a 60 second band aid. Changing to dry sump. Vastly expensive, more maintenance and more places to leak. My "normal" route is better windage trays/trap door baffles and the Accusump. The Accusump has another positive. You can pressurize the oil system BEFORE the crank rotates during start up. Floats the crank off of the bearings. |
|
|
|
| Osnabruck914 |
Apr 15 2024, 10:02 AM
Post
#4
|
|
Member Group: Members Posts: 59 Joined: 19-December 22 From: United States Member No.: 27,038 Region Association: South East States |
I happened to stumble on this same video this morning over breakfast. I will never worry about overfilling any of my cars crankcases by a few millimeters ever again. That guy is hilarious. Is he Russian? And how about running that engine indoors, no wonder he is a bit bonkers. This is a must watch for sure.
Osnabruck914 |
|
|
|
| Literati914 |
Apr 15 2024, 10:52 AM
Post
#5
|
|
Senior Member Group: Members Posts: 1,456 Joined: 16-November 06 From: Dallas, TX Member No.: 7,222 Region Association: Southwest Region |
There are finned deep sump 'oil pans' for the type 4, I've always wondered why they weren't more popular... maybe just because of ground clearance on 914 (IMG:style_emoticons/default/confused24.gif)
. |
|
|
|
| technicalninja |
Apr 15 2024, 12:35 PM
Post
#6
|
|
Senior Member Group: Members Posts: 1,184 Joined: 31-January 23 From: Granbury Texas Member No.: 27,135 Region Association: Southwest Region
|
QUOTE(Osnabruck914 @ Apr 15 2024, 11:02 AM)  I happened to stumble on this same video this morning over breakfast. I will never worry about overfilling any of my cars crankcases by a few millimeters ever again. That guy is hilarious. Is he Russian? And how about running that engine indoors, no wonder he is a bit bonkers. This is a must watch for sure. Osnabruck914 He's got a bunch of videos... Some are so far out there as to initially appears as a "gags". They make stuff work that I would have bet against. Often my first question is "WHY?" Looks like they have fun doing it! (IMG:style_emoticons/default/ninja.gif) |
|
|
|
| Front yard mechanic |
Apr 15 2024, 08:28 PM
Post
#7
|
|
Senior Member Group: Members Posts: 1,158 Joined: 23-July 15 From: New Mexico Member No.: 18,984 Region Association: None
|
Oil in Russia is plentiful. Brains ? Not so much
|
 |
|
|
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 5th May 2024 - 07:39 AM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.