too high of oil preasure, blowing fiter seal, HELP |
|
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. |
|
too high of oil preasure, blowing fiter seal, HELP |
dougcoup |
Jun 7 2006, 04:41 AM
Post
#1
|
Member Group: Members Posts: 131 Joined: 5-March 05 From: mundelien, il Member No.: 3,715 |
I recently converted to 6cyl, and now when I start it it blows the oil filter seal.
We traced the oil and it is flowing freely through the system and cooler back into drysump.... we noticed that hoses were a little softer on the out side of the oil cooler (RX7 turbo cooler) so we bypassed it and it solved the problem. I have since bought a new cooler 914-6, and now it blows again. Any thoughts as to why this might be happening? I checked both oil pressure springs and valves and they are there, loose and movable so they are not stuck. Doug right not the exxon valdez capt'n |
Gint |
Jun 7 2006, 05:31 AM
Post
#2
|
Mike Ginter Group: Admin Posts: 16,083 Joined: 26-December 02 From: Denver CO. Member No.: 20 Region Association: Rocky Mountains |
Moving to the garage...
|
cnavarro |
Jun 7 2006, 06:05 AM
Post
#3
|
Cylinder Guru Group: Members Posts: 472 Joined: 30-December 02 From: Chicagoland! Member No.: 49 Region Association: None |
By any chance are you bulging the filters? What filter are you using?
|
mudfoot76 |
Jun 7 2006, 06:54 AM
Post
#4
|
Currently teenerless :-( Group: Members Posts: 946 Joined: 18-March 04 From: Carmel, IN Member No.: 1,814 Region Association: None |
I recently converted to 6cyl, and now when I start it it blows the oil filter seal. What kind of filter? I had this problem on my -4 when I tried to use a FRAM (I know, I know, a REALLY stupid move) oil filter. Stick to Mahle, Mann, or the K&N oil filters. But if you already are using one of those, (IMG:style_emoticons/default/confused24.gif) |
GBallantine |
Jun 7 2006, 10:33 AM
Post
#5
|
Member Group: Members Posts: 74 Joined: 12-October 04 From: Toronto,Ont.Canada Member No.: 2,930 |
I had the same problem on my 4 cylinder race motor... plus I was bulging the filter. I went to a Fram HP 1 full flow filter and RTV the seal and problem solved. Make sure you use the HP which is the High Performance filter and NOT the standard PH filter. Also try to keep the revs low on start up until the oil warms up.
GB |
Mark Henry |
Jun 7 2006, 10:39 AM
Post
#6
|
that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
I had the same problem on my 4 cylinder race motor... plus I was bulging the filter. I went to a Fram HP 1 full flow filter and RTV the seal and problem solved. Make sure you use the HP which is the High Performance filter and NOT the standard PH filter. Also try to keep the revs low on start up until the oil warms up. GB The RTV on the filter oil seal is going to kill your bearings. |
Brett W |
Jun 7 2006, 11:09 AM
Post
#7
|
Advanced Member Group: Members Posts: 2,856 Joined: 17-September 03 From: huntsville, al Member No.: 1,169 Region Association: None |
I agree with Mark, RTV belongs nowhere near an engine.
K&N filters are very strong, but you need to pull the bypasses out and make sure your don't have some trash behind them. You should also check and make sure you don't have two gaskets stuck together. |
dougcoup |
Jun 10 2006, 12:17 PM
Post
#8
|
Member Group: Members Posts: 131 Joined: 5-March 05 From: mundelien, il Member No.: 3,715 |
I am using HP 1 from patrick motorsports.
I pulled pressure springs to make sure they were not stuck. I guess what I could do is pull them and crank it to blow by anything that would be stuck. But here is the kicker. If I bypass the oil cooler it works fine. (putting a Male to Male connector, so lines are still used). We are thinking that the oil presure blow off springs are super strong and not stock and we are ordering stock springs to see if that solves it. Thanks for the input |
dougcoup |
Jun 10 2006, 12:19 PM
Post
#9
|
Member Group: Members Posts: 131 Joined: 5-March 05 From: mundelien, il Member No.: 3,715 |
|
Mark Henry |
Jun 10 2006, 12:30 PM
Post
#10
|
that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
Is the cooler blocked? if removing the cooler from the line solves you pressure problem then I suspect the cooler. Or a cooler T-stat?
|
Cap'n Krusty |
Jun 10 2006, 01:46 PM
Post
#11
|
Cap'n Krusty Group: Members Posts: 10,794 Joined: 24-June 04 From: Santa Maria, CA Member No.: 2,246 Region Association: Central California |
Frams are for olf Fords you don't care about. RTV is for engines you don't care about. Use ONLY the OE filters, use only the correct weight oil, and check the plumbing to the external cooler, including the cooler itself. I don't remember ever seeing a 911 motor with excessive oil pressure. The Cap'n
|
Aaron Cox |
Jun 10 2006, 01:48 PM
Post
#12
|
Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
some rx7 coolers have thermostats in em.....
bulging - does the filter "bulge" or grow in shape??? |
Mark Henry |
Jun 10 2006, 02:20 PM
Post
#13
|
that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
Bulges like a balloon till the seal pops out or it splits.
I've had one burst on the test stand hosing 3 cars, my 12 foot ceiling and a wall that was 40 feet away. |
dougcoup |
Jun 11 2006, 09:07 AM
Post
#14
|
Member Group: Members Posts: 131 Joined: 5-March 05 From: mundelien, il Member No.: 3,715 |
No Bulging accept the oil filter seal seal that you see expanding out then blowing.
As for Oil Cooler, I have blown compressed air through it it is clean. I have removed thermostat. (RX7) I now have 914-6 cooler. My friend says I need in on one side and out on the other cooler. I do not see hos that would be any different then in/out on same side. B & B coolers are in/out on same side and I used them with good luck. HELP |
sixnotfour |
Jun 11 2006, 12:47 PM
Post
#15
|
914 Wizard Group: Members Posts: 10,436 Joined: 12-September 04 From: Life Elevated..planet UT. Member No.: 2,744 Region Association: Rocky Mountains |
oil pressure springs on the motor have nothing to do with the oil return(scavenge) side of the pump on a six.
I have a hp-1 on mine never any problem. -12 6 foot long . how is your set up plumbed? oil filter hooked up in/out backwards ? |
MattR |
Jun 11 2006, 12:56 PM
Post
#16
|
Advanced Member Group: Members Posts: 3,279 Joined: 23-January 04 From: SF Bay Area Member No.: 1,589 Region Association: Northern California |
Have you put a gauge on the engine to see how much oil pressure you're running?
And is the engine stock? Stock oil pump, relief pistons/springs, etc. |
J P Stein |
Jun 11 2006, 01:19 PM
Post
#17
|
Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
The thermostat on the scavenge side is there to keep cold oil away from an oil cooler.
The scavenge side is unregulated for pressure. If your filter is upstream of the cooler,.......I'm confused. My set up bypasses the oil cooler till the oil is hot. When cold, it goes thru the filter to the tank....the Mahle filter has a high pressure relief valve to bypass the filter element should it overpressure.... A sketch or pic of your plumbing would be good |
sixnotfour |
Jun 11 2006, 02:13 PM
Post
#18
|
914 Wizard Group: Members Posts: 10,436 Joined: 12-September 04 From: Life Elevated..planet UT. Member No.: 2,744 Region Association: Rocky Mountains |
QUOTE Have you put a gauge on the engine to see how much oil pressure you're running? And is the engine stock? Stock oil pump, relief pistons/springs, etc. This is a factor if he is plumed into the stock cooler inlet/outlet on the motor. The engine pressure is not a factor as the six engine has a 2 stage oil pump if he is using the scavenge cicut. if it blows the factory oil cooler on the motor then the motor thermostat is bad or not there allowing cold engine oil to enter cooler. QUOTE how is your set up plumbed? A sketch or pic of your plumbing would be good |
MattR |
Jun 11 2006, 07:39 PM
Post
#19
|
Advanced Member Group: Members Posts: 3,279 Joined: 23-January 04 From: SF Bay Area Member No.: 1,589 Region Association: Northern California |
This is a factor if he is plumed into the stock cooler inlet/outlet on the motor. The engine pressure is not a factor as the six engine has a 2 stage oil pump if he is using the scavenge cicut. if it blows the factory oil cooler on the motor then the motor thermostat is bad or not there allowing cold engine oil to enter cooler. Ahh, got it. All my 6 cyl experience comes on the same case, but with watercooled heads, cylinders, and oil cooler which has an integrated filter. The tank is a totally seperate ordeal. |
dougcoup |
Jul 1 2006, 03:39 PM
Post
#20
|
Member Group: Members Posts: 131 Joined: 5-March 05 From: mundelien, il Member No.: 3,715 |
QUOTE Have you put a gauge on the engine to see how much oil pressure you're running? And is the engine stock? Stock oil pump, relief pistons/springs, etc. This is a factor if he is plumed into the stock cooler inlet/outlet on the motor. The engine pressure is not a factor as the six engine has a 2 stage oil pump if he is using the scavenge cicut. if it blows the factory oil cooler on the motor then the motor thermostat is bad or not there allowing cold engine oil to enter cooler. QUOTE how is your set up plumbed? A sketch or pic of your plumbing would be good I saw your post, and would like to discuss/learn more, as I am not sure I follow you. The engine is not stock. Not sure what is done but it is a race engine 2.8L, 265hp. I am using the stock on engine cooler with the patrick motorsports modification to allow me to hook up AN fitting.... I have that and the other fitting on the case lower in the circuit. I have it plumbed just like the patick website shows. and am really sure it is right as when we take the remote front oil cooler out of the line it is fine. But I have tried two coolers and both make it blow. email me directly and I can send you email with drawing of plumbing dougcoup711@yahoo.com |
Lo-Fi Version | Time is now: 10th June 2024 - 12:21 AM |
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 ... |