Home  |  Forums  |  914 Info  |  Blogs
 
914World.com - The fastest growing online 914 community!
 
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.
 

Welcome Guest ( Log In | Register )

 
 Reply to this topicStart new topic
> oil pooling on engine tin
ericoneal
post Apr 14 2013, 08:13 PM
Post #1


Member
**

Group: Members
Posts: 320
Joined: 13-August 12
From: Crestwood, KY
Member No.: 14,795
Region Association: South East States
I seem to have a problem with oil pooling on the top of the engine tin, where the red circle is. Just changed the valve cover, and its dry, so I know somehow its not coming from there. I wonder if its coming from the little hose just to the upper left? BUt thats dry too. At a loss here...Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
mepstein
post Apr 14 2013, 08:21 PM
Post #2


914-6 GT in waiting
***************

Group: Members
Posts: 19,679
Joined: 19-September 09
From: Landenberg, PA/Wilmington, DE
Member No.: 10,825
Region Association: MidAtlantic Region
Do you have an oil bath air filter? When I jack up one side on my car, I sometimes get some overflow from the filter.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
JamesM
post Apr 14 2013, 10:24 PM
Post #3


Advanced Member
****

Group: Members
Posts: 2,024
Joined: 6-April 06
From: Kearns, UT
Member No.: 5,834
Region Association: Intermountain Region
QUOTE(mepstein @ Apr 14 2013, 06:21 PM) *

Do you have an oil bath air filter? When I jack up one side on my car, I sometimes get some overflow from the filter.



Looks like a 2.0, so I would say no on the oil bath.

My guess would be it is related to the head vent hose on the left, I would pull the hose off and inspect everything. Only 2 things that would carry oil vapor topside of the engine tin on a 2.0 would be the head vents or crankcase vent.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
JamesM
post Apr 14 2013, 10:28 PM
Post #4


Advanced Member
****

Group: Members
Posts: 2,024
Joined: 6-April 06
From: Kearns, UT
Member No.: 5,834
Region Association: Intermountain Region
also.... where do you have that head vent hose connecting to? It should run tight along side the engine tin to the flashback valve.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
JStroud
post Apr 14 2013, 11:26 PM
Post #5


Senior Member
***

Group: Members
Posts: 1,463
Joined: 15-January 11
From: Galt, California
Member No.: 12,594
Region Association: Northern California
I had the same problem, ended up coming from the top of the valve cover, the gasket had sucked in on top, no oil anywhere but on top of the tin (IMG:style_emoticons/default/confused24.gif)

Fixed the valve cover gasket, no more oil.

Jeff
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
r_towle
post Apr 14 2013, 11:35 PM
Post #6


Custom Member
***************

Group: Members
Posts: 24,680
Joined: 9-January 03
From: Taxachusetts
Member No.: 124
Region Association: North East States
Head vent
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
euro911
post Apr 14 2013, 11:56 PM
Post #7


Retired & living the dream. God help me if I wake up!
*****

Group: Members
Posts: 8,860
Joined: 2-December 06
From: So.Cal. & No.AZ (USA)
Member No.: 7,300
Region Association: Southern California
If the leak started recently after changing the VC gaskets, I'd agree that's where you need to focus.

Crank case pressure is probably pushing the oil out of the top of the gasket.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ericoneal
post Apr 15 2013, 08:13 AM
Post #8


Member
**

Group: Members
Posts: 320
Joined: 13-August 12
From: Crestwood, KY
Member No.: 14,795
Region Association: South East States
The leak was happening before I changed the VC gaskets, which were leaking bad, but now the vlave cover is completely dry, so I dont think its that. I tend to think its the head vent hose, but that seems to be dry too. One clue is that it only leak during "spirited" driving, not when the car is idling.
Finally the head vent hose is connected to a silver box on the firewall pictured below. (not my engine, I dont have carbs, but I do have the box)

Box is also not leaking.

Thanks all,
Eric


Attached image(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
TheCabinetmaker
post Apr 15 2013, 08:53 AM
Post #9


I drive my car everyday
*****

Group: Members
Posts: 8,325
Joined: 8-May 03
From: Tulsa, Ok.
Member No.: 666
Oil can and will blow out the top of the valve cover , pool on the tin,
and the cover stay dry. I agree on the gasket. Been there.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
rhodyguy
post Apr 15 2013, 08:54 AM
Post #10


Chimp Sanctuary NW. Check it out.
***************

Group: Members
Posts: 22,198
Joined: 2-March 03
From: Orion's Bell. The BELL!
Member No.: 378
Region Association: Galt's Gulch
have you cleaned the interior of the breather box. i don't understand why you have a bb with fi.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
brant
post Apr 15 2013, 08:55 AM
Post #11


914 Wizard
**********

Group: Members
Posts: 11,828
Joined: 30-December 02
From: Colorado
Member No.: 47
Region Association: Rocky Mountains
valve cover
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ericoneal
post Apr 15 2013, 09:30 AM
Post #12


Member
**

Group: Members
Posts: 320
Joined: 13-August 12
From: Crestwood, KY
Member No.: 14,795
Region Association: South East States
Havent touched it, the previous owner had it on there and I assume he left it when he installed the MegaSquirt system.

QUOTE(rhodyguy @ Apr 15 2013, 10:54 AM) *

have you cleaned the interior of the breather box. i don't understand why you have a bb with fi.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ericoneal
post Apr 15 2013, 09:30 AM
Post #13


Member
**

Group: Members
Posts: 320
Joined: 13-August 12
From: Crestwood, KY
Member No.: 14,795
Region Association: South East States
I will have another look, but I just changed the gasket and there is not a drop of oil on the garage floor. (IMG:style_emoticons/default/blink.gif)

QUOTE(The Cabinetmaker @ Apr 15 2013, 10:53 AM) *

Oil can and will blow out the top of the valve cover , pool on the tin,
and the cover stay dry. I agree on the gasket. Been there.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
JamesM
post Apr 15 2013, 11:18 AM
Post #14


Advanced Member
****

Group: Members
Posts: 2,024
Joined: 6-April 06
From: Kearns, UT
Member No.: 5,834
Region Association: Intermountain Region
Ok, so now I am confused as the 1st pic was from a D-jet car and your 2nd pic had carbs?

pressure on a properly setup d-jet car should be venting though the head vent provided it has not been fuch'ed with. I could see on a carbed car how the pressure could blow out the valve cover gasket if it was improperly installed and the normal vents have been jacked around to where they are not evacuated properly.


Makes it somewhat harder to diagnose when you describe a problem and then show a picture of a completely different car.



Also, if the carbed car is yours, it looks like you a have the head vents and the PCV venting to the same source. If you still have the PCV in place which it looks like you do you may want to remove that as it was intended to be connected to manifold vacuum.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
VaccaRabite
post Apr 15 2013, 11:35 AM
Post #15


En Garde!
**********

Group: Admin
Posts: 13,629
Joined: 15-December 03
From: Dallastown, PA
Member No.: 1,435
Region Association: MidAtlantic Region
QUOTE(JamesM @ Apr 15 2013, 12:18 PM) *

Ok, so now I am confused as the 1st pic was from a D-jet car and your 2nd pic had carbs?

Neither may be his engine. May just be searching for engine pics online that have th hose thats leaking on his.

Best guess...

Zach
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
TheCabinetmaker
post Apr 15 2013, 11:58 AM
Post #16


I drive my car everyday
*****

Group: Members
Posts: 8,325
Joined: 8-May 03
From: Tulsa, Ok.
Member No.: 666
His second pic says its not his engine
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
rhodyguy
post Apr 15 2013, 12:48 PM
Post #17


Chimp Sanctuary NW. Check it out.
***************

Group: Members
Posts: 22,198
Joined: 2-March 03
From: Orion's Bell. The BELL!
Member No.: 378
Region Association: Galt's Gulch
the bb is not a sealed container. when you remove the lid you'll notice how it fits. the foam piece inside traps the vapors (almost) and the pressure escapes at the lid. the trapped oil drips back to the head vent tubes when the the fluid level reaches the side fittings. can't see how the djet fi would care for the setup. source the right parts in the classifieds. you might consider changing the slotted screw clamps for shouldered type. esp on the pressurized fuel lines.

k
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
JamesM
post Apr 15 2013, 05:09 PM
Post #18


Advanced Member
****

Group: Members
Posts: 2,024
Joined: 6-April 06
From: Kearns, UT
Member No.: 5,834
Region Association: Intermountain Region
QUOTE(Vacca Rabite @ Apr 15 2013, 09:35 AM) *

QUOTE(JamesM @ Apr 15 2013, 12:18 PM) *

Ok, so now I am confused as the 1st pic was from a D-jet car and your 2nd pic had carbs?

Neither may be his engine. May just be searching for engine pics online that have th hose thats leaking on his.

Best guess...

Zach


Ah, should have read that 2nd post closer. So if no carbs then which injection system are you running? Also, if you are running one of the factory injection systems then why the separate breather box? Given that the head vent configuration has been messed with, that is defiantly where I would start. Maybe route it back to stock.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
JStroud
post Apr 15 2013, 07:42 PM
Post #19


Senior Member
***

Group: Members
Posts: 1,463
Joined: 15-January 11
From: Galt, California
Member No.: 12,594
Region Association: Northern California
I'm still saying valve cover, since that's where mine was coming from with no oil anywhere else, plus my motor is out of a 75... No head vents, so that wasn't even a consideration in my case.

Jeff
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
ericoneal
post May 1 2013, 08:24 PM
Post #20


Member
**

Group: Members
Posts: 320
Joined: 13-August 12
From: Crestwood, KY
Member No.: 14,795
Region Association: South East States
Winner! For the record, the head vent hose was very loose. I tightened and have driven like a maniac thru the Kentucky backroads and no more oil leak. (IMG:style_emoticons/default/beerchug.gif)
Odd that the hose was relatively dry...

ALso, not my engine in the above thread, pulled it from Google Images..




QUOTE(r_towle @ Apr 15 2013, 01:35 AM) *

Head vent
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
« Next Oldest · 914World Garage · Next Newest »
 

Reply to this topicStart new topic
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:

 

Display Mode: Standard · Switch to: Linear+ · Switch to: Outline

Track this topic · Email this topic · Print this topic · Subscribe to this forum

- Lo-Fi Version Time is now: 5th January 2025 - 03:59 AM
Invision Power Board v9.1.4 © 2025  IPS, Inc.
All rights reserved 914World.com © since 2002
914World.com is the fastest growing online 914 community!
We have it all, classifieds, events, forums, vendors, parts, autocross, racing, technical articles, events calendar, newsletter, restoration, gallery, archives, history and more for your Porsche 914 ...