 Oil Detective, Why am I using so much |
|
|
|
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. |
|
|
  |
| DNHunt |
 Jan 16 2005, 02:07 PM
Post
#1
|
|
914 Wizard? No way. I got too much to learn.  Group: Members Posts: 4,099 Joined: 21-April 03 From: Gig Harbor, WA Member No.: 598  |
I know, new motor, the rings aren't seated. So I had it apart to fix an oil leak and I started looking around. Oill in the intake behind the valve. Ah sh*t!
Attached image(s) 
|
   |
 
|
| DNHunt |
Jan 16 2005, 02:09 PM
Post
#2
|
|
914 Wizard? No way. I got too much to learn. Group: Members Posts: 4,099 Joined: 21-April 03 From: Gig Harbor, WA Member No.: 598 |
But, wait there's more. Oil in the intake runner.
Attached image(s) 
|
|
|
|
| DNHunt |
Jan 16 2005, 02:10 PM
Post
#3
|
|
914 Wizard? No way. I got too much to learn. Group: Members Posts: 4,099 Joined: 21-April 03 From: Gig Harbor, WA Member No.: 598 |
There's still more. Oil in the plenum.
Attached image(s) 
|
|
|
|
| DNHunt |
Jan 16 2005, 02:17 PM
Post
#4
|
|
914 Wizard? No way. I got too much to learn. Group: Members Posts: 4,099 Joined: 21-April 03 From: Gig Harbor, WA Member No.: 598 |
THere's still More! Oil in the vacuum line to the PCV valve.
So, could it be that the rings aren't seated so there oil remaining in the cylinders. Because of high crankcase pressure and higher vacuum, oil from the crankcase is being carried to the intake at a higher than stock rate. Maybe I'll need a breater system or a different PCV valve Dave Attached image(s) 
|
|
|
|
| machina |
Jan 16 2005, 03:07 PM
Post
#5
|
|
Advanced Member Group: Benefactors Posts: 2,030 Joined: 21-June 03 From: Miami Beach, FL Member No.: 848  |
are you sure you didn't overfill?
if not it could be your case/head venting. is that a 2270? |
|
|
|
| J P Stein |
Jan 16 2005, 03:22 PM
Post
#6
|
|
Irrelevant old fart Group: Members Posts: 8,797 Joined: 30-December 02 From: Vancouver, WA Member No.: 45 Region Association: None |
Probably the rings.
Are you using non-detergent oil? |
|
|
|
| Mark Henry |
Jan 16 2005, 06:32 PM
Post
#7
|
|
that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
Are you blowing a lot of smoke?
If it was the rings or guides the thing would be like a mosquito fogger with that much oil! Looks more like your pumping oil up the breather tube to me...how's it plumbed? Better pic please.... |
|
|
|
| Mark Henry |
Jan 16 2005, 07:12 PM
Post
#8
|
|
that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
Hmmmm....I wonder....with your 2270 and stock plenum are you creating so much vacuum that your are actually sucking oil right out of the engine?
Maybe you will need an external breather that sits high in the bay. Say a 4" piece of 1 1/2 tube, on end with a return on the bottom, the inlet just over half way up and outlet to the TB at the top. Put a couple of SS scrub pads or some kind of baffle in the tube. Just an idea.... |
|
|
|
| Gint |
Jan 16 2005, 07:41 PM
Post
#9
|
|
Mike Ginter Group: Admin Posts: 16,066 Joined: 26-December 02 From: Denver CO. Member No.: 20 Region Association: Rocky Mountains |
Was Andy over there taking pics?
Wish I could help Dave. I'm sure the eggssperts will have some insight. |
|
|
|
| rhodyguy |
Jan 16 2005, 07:54 PM
Post
#10
|
|
Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,072 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
stupid guess time. if the rings weren't seated, could the the compression be blowing back into the case? call 1-800- georgia. dave's car doesn't blow much out the ex pipe.
kevin |
|
|
|
| DNHunt |
Jan 16 2005, 08:24 PM
Post
#11
|
|
914 Wizard? No way. I got too much to learn. Group: Members Posts: 4,099 Joined: 21-April 03 From: Gig Harbor, WA Member No.: 598 |
Smoking on decel. I had one of the heads off today to get to an oil leak. The cylinders still look brand new. I do believe its sucking oil into the plenum though.
Dave |
|
|
|
| redshift |
Jan 16 2005, 08:27 PM
Post
#12
|
|
Bless the Hell out of you! Group: Members Posts: 10,926 Joined: 29-June 03 Member No.: 869 |
Ok, so far I am with Mark, especially on the smoking decel.. it just sounds... 'sucky'.
M |
|
|
|
| Bleyseng |
Jan 16 2005, 09:24 PM
Post
#13
|
|
Aircooled Baby! Group: Members Posts: 13,034 Joined: 27-December 02 From: Seattle, Washington (for now) Member No.: 24 Region Association: Pacific Northwest |
How much vacuum are you pulling at idle?
Hmm, how much air you blowing out of the hose from the PCV valve?? Geoff |
|
|
|
| Porsche Rescue |
Jan 16 2005, 09:56 PM
Post
#14
|
|
Saving and Enjoying Old Porsches Group: Members Posts: 2,978 Joined: 31-December 02 From: Bend, Oregon Member No.: 64 Region Association: None |
I have always believed that smoke on decel is from oil leaking by the exhaust valve guides under compression. If it was passing intake guide (s) as well that would get it to the intake side.
|
|
|
|
| Mark Henry |
Jan 16 2005, 10:05 PM
Post
#15
|
|
that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
Nah....fresh heads new guides and Len (Jake) built them...I've seen T1's do this, you'll need some kind of breather box.
Don't think Jake will be around till Tuesday, if your trying to get him on the phone. |
|
|
|
| scotty914 |
Jan 16 2005, 11:23 PM
Post
#16
|
|
suby torque rules Group: Members Posts: 1,525 Joined: 20-July 03 From: maryland, the land of 25 year Member No.: 924 |
smoking on decel is sucking oil throught the intake valve guides or from case due to high vacumn
do you have a decel valve on it |
|
|
|
| machina |
Jan 17 2005, 06:47 AM
Post
#17
|
|
Advanced Member Group: Benefactors Posts: 2,030 Joined: 21-June 03 From: Miami Beach, FL Member No.: 848 |
My 2270 was puking lots of oil last race but I had overfilled it. I have the heads and breather vented to a 1 qt tank. Next race I'll be more careful with the oil level. With the accusump, oil coolers and lines, its hard to tell when the level is right sometimes.
|
|
|
|
| Joe Ricard |
Jan 17 2005, 07:19 AM
Post
#18
|
|
CUMONIWANNARACEU Group: Members Posts: 6,811 Joined: 5-January 03 From: Gautier, MS Member No.: 92 |
It's probably just me but, I don't vent my crankcase or heads to the intake.
|
|
|
|
| cnavarro |
Jan 17 2005, 07:58 AM
Post
#19
|
|
Cylinder Guru Group: Members Posts: 472 Joined: 30-December 02 From: Chicagoland! Member No.: 49 Region Association: None |
I had the same problem with my engine. It got so bad the puke box would overflow. There were two issues- the puke box was too small and secondly, I mounted it way too low. That's what it sounds to me. The stock pcv system couldn't hold up to the larger displacement.
Charles Navarro LN Engineering http://www.LNengineering.com Aircooled Precision Performance |
|
|
|
| Walter |
Jan 17 2005, 09:23 AM
Post
#20
|
||
|
Member Group: Members Posts: 70 Joined: 10-August 04 From: The Netherlands, Europe Member No.: 2,499 |
Charles, Was that in your type 3? If so, I can relate: mounting a case vent box in a type 3 is a nightmare since total height is so little... Where did you eventually mount it? I had heard earlier of vent boxes that are too smal for a large type 4. The small bugpack ones have been replaced quite a few times for larger ones IIRC. Walter |
||
|
|
|
||
|
1 User(s) are reading this topic (1 Guests and 0 Anonymous Users)
0 Members:
|
Lo-Fi Version | Time is now: 4th May 2024 - 06:02 PM |
Invision Power Board
v9.1.4 © 2024 IPS, Inc.