 Oil Pressure light, Comes on when idling |
|
|
|
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. |
|
|
  |
| cal914 |
 Sep 8 2017, 01:47 PM
Post
#1
|
|
Member  Group: Members Posts: 319 Joined: 12-April 12 From: United Kingdom Member No.: 14,366 Region Association: None  |
Recently had my 914-6 engine rebuilt,upgraded to a 2.2 with an E cam,the oil pressure light is on while the car idles,soon as you rev it a bit the light goes out till you're back to idle,what could be causing this
Thanks Brian |
   |
 
|
| Ferg |
Sep 8 2017, 02:02 PM
Post
#2
|
|
914 Guru Group: Members Posts: 5,948 Joined: 8-January 03 From: Boulder CO Member No.: 116 Region Association: None 
|
At what Oil Temp is it coming on at Idle.
IIRC it comes on at 7psi, so below what should be normal oil pressure for a fresh motor, unless the motor is running warmer than normal, say above 230. |
|
|
|
| IronHillRestorations |
Sep 8 2017, 02:07 PM
Post
#3
|
|
I. I. R. C. Group: Members Posts: 6,719 Joined: 18-March 03 From: West TN Member No.: 439 Region Association: None
|
I'd be concerned. Low oil pressure can be a sign of main bearing problems. That's not set in stone, but I wouldn't be happy to see that on a fresh rebuild.
One common mod is to use a later oil line adapter with a smaller orifice, which helps raise the oil pressure. |
|
|
|
| sixnotfour |
Sep 8 2017, 02:59 PM
Post
#4
|
|
914 Wizard Group: Members Posts: 10,430 Joined: 12-September 04 From: Life Elevated..planet UT. Member No.: 2,744 Region Association: Rocky Mountains 
|
what pump is in it ?? the factory pwners manual states at elevated temps light may flicker..
what rpm is idle ?? replace the dual sender with a single red plastic oil pressure sender,,, by the oil thermostat |
|
|
|
| Mikey914 |
Sep 8 2017, 04:57 PM
Post
#5
|
|
The rubber man Group: Members Posts: 12,661 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None
|
Also, if you have a LED it will look much worse than it is. When the light stays on over a low idle I'd be concerned.
|
|
|
|
| Elliot Cannon |
Sep 8 2017, 05:14 PM
Post
#6
|
|
914 Guru Group: Retired Members Posts: 8,487 Joined: 29-December 06 From: Paso Robles Ca. (Central coast) Member No.: 7,407 Region Association: None
|
What viscosity are you using. Maybe too thin?
|
|
|
|
| porschetub |
Sep 8 2017, 06:06 PM
Post
#7
|
|
Advanced Member Group: Members Posts: 4,698 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
QUOTE(Elliot Cannon @ Sep 9 2017, 11:14 AM)  What viscosity are you using. Maybe too thin? (IMG:style_emoticons/default/agree.gif) low idle speed,wrong oil spec will do it....but it is a rebuilt engine. I had a once only minor overheat on my engine and mine dropped to 12psi @ 230F. I have a combination pressure/warning vdo sender set @ 10psi it has never set off the oil light with engine running. My engine runs well but could hardly be described as newish or rebuilt,OP should be concerned as its rare to have a low pressure switch fail,maybe he has the wrong one I don't know (IMG:style_emoticons/default/confused24.gif) . Perry made the comment about the upgrade camline oil restrictors but wasn't happy after researching them ,appears they can cause camshaft lobe wear in an early motor,I swapped back to the stock ones for my 2.2. |
 |
|
| Elliot Cannon |
Sep 8 2017, 08:38 PM
Post
#8
|
|
914 Guru Group: Retired Members Posts: 8,487 Joined: 29-December 06 From: Paso Robles Ca. (Central coast) Member No.: 7,407 Region Association: None
|
I run 15W50 in my type IV. I tried 10W40 once and every time the engine was at idle RPM the oil light would come on. Went back to 15W50 and no problem. (IMG:style_emoticons/default/smile.gif)
|
|
|
|
|
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 15th May 2024 - 01:12 PM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.