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 )

2 Pages V  1 2 >  
 Reply to this topicStart new topic
> my oil/ engine problems diagnosis ?, updated, Just did compression test today 3/17/09
jsayre914
post Mar 3 2009, 04:52 PM
Post #1


Speed Up !!!
****

Group: Members
Posts: 3,188
Joined: 10-February 08
From: Timonium MD 21093
Member No.: 8,696
Region Association: MidAtlantic Region
take a look guys, by the way I did get her home the other night, and i beat the snow.


Attached image(s)
Attached Image Attached Image Attached Image Attached Image Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
jsayre914
post Mar 3 2009, 04:54 PM
Post #2


Speed Up !!!
****

Group: Members
Posts: 3,188
Joined: 10-February 08
From: Timonium MD 21093
Member No.: 8,696
Region Association: MidAtlantic Region
more


Attached image(s)
Attached Image Attached Image Attached Image Attached Image Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
jsayre914
post Mar 3 2009, 04:56 PM
Post #3


Speed Up !!!
****

Group: Members
Posts: 3,188
Joined: 10-February 08
From: Timonium MD 21093
Member No.: 8,696
Region Association: MidAtlantic Region
...


Attached image(s)
Attached Image Attached Image Attached Image Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
jsayre914
post Mar 3 2009, 04:57 PM
Post #4


Speed Up !!!
****

Group: Members
Posts: 3,188
Joined: 10-February 08
From: Timonium MD 21093
Member No.: 8,696
Region Association: MidAtlantic Region
last ones


Attached image(s)
Attached Image Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
jsayre914
post Mar 3 2009, 04:58 PM
Post #5


Speed Up !!!
****

Group: Members
Posts: 3,188
Joined: 10-February 08
From: Timonium MD 21093
Member No.: 8,696
Region Association: MidAtlantic Region
Zach said he would loan me a compression tester, i guess that is my next step.

thanks for looking

joseph
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
yeahmag
post Mar 3 2009, 06:51 PM
Post #6


Advanced Member
****

Group: Members
Posts: 2,421
Joined: 18-April 05
From: Pasadena, CA
Member No.: 3,946
Region Association: Southern California
Been a while since I had FI on the car. Could you tell if it was coming from one of the breather tubes for the heads? Any smoke out of the tail pipe while running? I can't imagine anything other than excessive blow by causing that - which the compression test should show you.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Jake Raby
post Mar 3 2009, 06:54 PM
Post #7


Engine Surgeon
*****

Group: Members
Posts: 9,394
Joined: 31-August 03
From: Lost
Member No.: 1,095
Region Association: South East States
Tons of blow by... Either the rings are shot or the exhaust valve guides are shot, or both..
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
type47
post Mar 3 2009, 07:09 PM
Post #8


Viermeister
****

Group: Members
Posts: 4,254
Joined: 7-August 03
From: Vienna, VA
Member No.: 994
Region Association: MidAtlantic Region
Good thing a response I made didn't get posted..... I questioned the compression test.... My lack of skilz...

I would like to know about the "blow by" you (especially Jake) mention. What is it exactly and would it cause that much oil mess? (Just asking for my education).
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
yeahmag
post Mar 3 2009, 07:21 PM
Post #9


Advanced Member
****

Group: Members
Posts: 2,421
Joined: 18-April 05
From: Pasadena, CA
Member No.: 3,946
Region Association: Southern California
When combustion gases go flying past the rings they can only escape through the PCV and the head vents. The gases pick up oil and oil vapor(s) along the way giving you a nasty mess (as witnessed above).
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Jake Raby
post Mar 3 2009, 07:28 PM
Post #10


Engine Surgeon
*****

Group: Members
Posts: 9,394
Joined: 31-August 03
From: Lost
Member No.: 1,095
Region Association: South East States
Bad rings can create blowby as they allow gases to fill the crankcase, forcing an oily mess from every orfice...

The same thing happens with bad exhaust valve guides as the exhaust gases pass between the stem of the valve and the valve guide, pressurizing the rocker box and then the crankcase..
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
Dr Evil
post Mar 3 2009, 07:54 PM
Post #11


Send me your transmission!
***************

Group: Members
Posts: 22,995
Joined: 21-November 03
From: Loveland, OH 45140
Member No.: 1,372
Region Association: MidAtlantic Region
So, when are we going to rebuild your engine (IMG:style_emoticons/default/smile.gif) (IMG:style_emoticons/default/idea.gif)
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
wertygrog
post Mar 3 2009, 08:06 PM
Post #12


wertygrog
**

Group: Members
Posts: 428
Joined: 12-November 05
From: Long Beach, CA
Member No.: 5,114
Region Association: Southern California
My engine does the same thing when a hose falls off the head breathers or any other part of the pcv system. Check all your hoses and connections...sometimes they crack or loosen up down by the cylinder head.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
VaccaRabite
post Mar 3 2009, 08:10 PM
Post #13


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

Group: Admin
Posts: 13,442
Joined: 15-December 03
From: Dallastown, PA
Member No.: 1,435
Region Association: MidAtlantic Region
Hey Joe,

I'm not in class this week. Next week I have Monday off, but it gets insane again for me right after that. If it is sucky outside, we can warm up your engine by running it in the garage with a hose hooked up to the exhaust pipe. If your valves have not been done in a while, I'll bring feeler gauges too.

If it comes to it that you need to rebuild, all my resources are at your disposal. If you get good numbers, we can look and see if there is something else funky.

I won't lie. I want to help you rebuild your engine. I've got all this crap now, and I want to use it.

Zach
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
championgt1
post Mar 3 2009, 08:15 PM
Post #14


Don't embarrass me Filmore!
****

Group: Members
Posts: 2,680
Joined: 3-January 07
From: Tacoma, Washington
Member No.: 7,420
Region Association: Pacific Northwest
How did your engine run before this mess? The stacked vacuum elbow being disconnected would have been a MAJOR vaccum leak. Is this your oil leak problem. No.
User is online!Profile CardPM
Go to the top of the page
+Quote Post
jsayre914
post Mar 3 2009, 09:22 PM
Post #15


Speed Up !!!
****

Group: Members
Posts: 3,188
Joined: 10-February 08
From: Timonium MD 21093
Member No.: 8,696
Region Association: MidAtlantic Region
QUOTE(yeahmag @ Mar 3 2009, 07:51 PM) *

Could you tell if it was coming from one of the breather tubes for the heads?


the hose it is comming from goes into the threeway split thing front left side of the engine, from there i would guess it is coming from the head.
QUOTE


Any smoke out of the tail pipe while running?


yes, espically from hard throtle when i let go of the pedal.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
jsayre914
post Mar 3 2009, 09:24 PM
Post #16


Speed Up !!!
****

Group: Members
Posts: 3,188
Joined: 10-February 08
From: Timonium MD 21093
Member No.: 8,696
Region Association: MidAtlantic Region
QUOTE(Jake Raby @ Mar 3 2009, 08:28 PM) *

Bad rings can create blowby as they allow gases to fill the crankcase, forcing an oily mess from every orfice...

The same thing happens with bad exhaust valve guides as the exhaust gases pass between the stem of the valve and the valve guide, pressurizing the rocker box and then the crankcase..


(IMG:style_emoticons/default/idea.gif) so does the engine still gotta come out if it is the valve guides?
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
jsayre914
post Mar 3 2009, 09:28 PM
Post #17


Speed Up !!!
****

Group: Members
Posts: 3,188
Joined: 10-February 08
From: Timonium MD 21093
Member No.: 8,696
Region Association: MidAtlantic Region
QUOTE(championgt1 @ Mar 3 2009, 09:15 PM) *

How did your engine run before this mess? The stacked vacuum elbow being disconnected would have been a MAJOR vaccum leak. Is this your oil leak problem. No.

the car ran absolutly great, even with the smoke... it is/ was fast. i used a piece of silicon inside the double stack, but im not so sure it was perfectly tight, and from what im learning there is quite a bit of pressure in my case.
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
r_towle
post Mar 3 2009, 09:33 PM
Post #18


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

Group: Members
Posts: 24,574
Joined: 9-January 03
From: Taxachusetts
Member No.: 124
Region Association: North East States
QUOTE(jsayre914 @ Mar 3 2009, 10:24 PM) *

QUOTE(Jake Raby @ Mar 3 2009, 08:28 PM) *

Bad rings can create blowby as they allow gases to fill the crankcase, forcing an oily mess from every orfice...

The same thing happens with bad exhaust valve guides as the exhaust gases pass between the stem of the valve and the valve guide, pressurizing the rocker box and then the crankcase..


(IMG:style_emoticons/default/idea.gif) so does the engine still gotta come out if it is the valve guides?


Yup and it takes less than a hour to get it out.

Rich
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
jsayre914
post Mar 3 2009, 09:33 PM
Post #19


Speed Up !!!
****

Group: Members
Posts: 3,188
Joined: 10-February 08
From: Timonium MD 21093
Member No.: 8,696
Region Association: MidAtlantic Region
anyone know where this came from??


Attached image(s)
Attached Image
User is offlineProfile CardPM
Go to the top of the page
+Quote Post
r_towle
post Mar 3 2009, 09:34 PM
Post #20


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

Group: Members
Posts: 24,574
Joined: 9-January 03
From: Taxachusetts
Member No.: 124
Region Association: North East States
QUOTE(jsayre914 @ Mar 3 2009, 10:28 PM) *

QUOTE(championgt1 @ Mar 3 2009, 09:15 PM) *

How did your engine run before this mess? The stacked vacuum elbow being disconnected would have been a MAJOR vaccum leak. Is this your oil leak problem. No.

the car ran absolutly great, even with the smoke... it is/ was fast. i used a piece of silicon inside the double stack, but im not so sure it was perfectly tight, and from what im learning there is quite a bit of pressure in my case.

From what I have experienced with lots of motors, not just type 4, is if you get smoke on the highway when you let off the gas pedal, its rings.

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

2 Pages V  1 2 >
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: 13th May 2024 - 09:49 PM
Invision Power Board v9.1.4 © 2024  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 ...