997 2005-2012 911 C2, C2S, C4, C4S, GTS, Targa and Cabriolet Model Discussion.

Low Oil Pressure?

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  #46  
Old 05-23-2012, 07:49 PM
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Just curious.....doesn't replacing the oil pump involve dropping the motor, opening the cases, and really getting into it, like tearing the whole thing apart? I'm not a motor guy but that's what it seemed like when I was/am getting mine rebuilt. The fragments in the filter are not good. I think you are looking at a total rebuild with whatever parts they can salvage or a replacement motor. My only advice is to make sure whomever is doing the work has done it many times before. The assurance, "I can do it", doesn't mean diddly. Most independents rely on changing oil and brakes to make a living and even if a one or two man shop has the cognitive skills to do the job, they can't irritate everyone else while they work on yours for a couple of weeks, ie it will take a long, long time.....best
 
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Old 05-24-2012, 01:41 AM
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Originally Posted by Gpjli
Thats a real mess. How long was that filter in there? Is that different from what was in the oil pump? If you rub it between your fingers does it feel soft or like sand? Have you taken the car back and are you driving it?
For around 2 month old 4k km , I don't know cause the mechanic describe it to me , it feel soft but it is very sharp , no am not driving the car ,

And when I bought the car I did a major service + spark plug + brake pad + brake oil + cup holder + P zero rosso
 
  #48  
Old 05-24-2012, 01:48 AM
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Originally Posted by Hella-Buggin'
Is that metal? is that the same material that was in the oil pump?

Aluminum wouldn't stick to a magnet but that would mean it was block or head material right?
I think so, probably The same material ,
 
  #49  
Old 05-24-2012, 01:59 AM
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Originally Posted by cerbomark
someone with good engine knowledge (probably on this site) will tell you exactly what those pieces are from based on the color alone.... we are all waiting.

Looks like brass to me. (bearings??)
I hope so , I searched the Internet a lot and I think it's engine bearings

Check
http://www.northtexasaudigroup.com/s...ilure-Pictures
 
  #50  
Old 05-24-2012, 02:16 AM
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Originally Posted by Gpjli
As I understand it there is a bypass in the oil filter that operates if filter is clogged. Everything gets dumped back into the motor. That would likely have happened here judging by the pix. Probably rebuild time. Wonder what the service records look like if the filter is any indication. Obviously no one looked into the filter before putting money into this. I feel like something is missing in this story.
It's look like rebuild time , I went to the dealer and I checked the service history
And it was very good no serious problem or oil pressure issue , on interval every 5k there was service but the strange is last service was on 65k km (major service ) and I bought the car 84k km around 20k km without record.
 

Last edited by cayenne444; 05-24-2012 at 02:33 AM.
  #51  
Old 05-24-2012, 02:32 AM
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Originally Posted by Steamboat
Just curious.....doesn't replacing the oil pump involve dropping the motor, opening the cases, and really getting into it, like tearing the whole thing apart? I'm not a motor guy but that's what it seemed like when I was/am getting mine rebuilt. The fragments in the filter are not good. I think you are looking at a total rebuild with whatever parts they can salvage or a replacement motor. My only advice is to make sure whomever is doing the work has done it many times before. The assurance, "I can do it", doesn't mean diddly. Most independents rely on changing oil and brakes to make a living and even if a one or two man shop has the cognitive skills to do the job, they can't irritate everyone else while they work on yours for a couple of weeks, ie it will take a long, long time.....best
No I don't think so they only remove some part from the exshust system to change the pump ,
Thanks for the advice
The guy that will take care of my car is Porsche specialist He used to be the maintenance supervise in Porsche dealer, it will be in a good hand
 
  #52  
Old 05-24-2012, 08:13 AM
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did you just buy this car a few months ago? Is it CPO?
 
  #53  
Old 05-24-2012, 10:06 AM
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Originally Posted by Hella-Buggin'
did you just buy this car a few months ago? Is it CPO?
No CPO
 
  #54  
Old 05-24-2012, 02:53 PM
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Originally Posted by cayenne444
It's look like rebuild time , I went to the dealer and I checked the service history
And it was very good no serious problem or oil pressure issue , on interval every 5k there was service but the strange is last service was on 65k km (major service ) and I bought the car 84k km around 20k km without record.
As others have said I am afraid you are right. Get price for rebuild vs remanufactured from factory. If you have any doubts about the workmanship of your technician (maybe you should???) I would go with the remanu. You can search LN Engineering and Jake Raby and get an idea of what experienced professional charges for these options. Best guess is that it is indeed from main bearings, maybe motor was run w/o oil before you got it. Sad that you put money into the motor before they found the mess. Ask the dealer to help you here since it sounds like they sold you this expensive problem. Btw, where are you. KSA?
 

Last edited by Gpjli; 05-24-2012 at 02:56 PM.
  #55  
Old 05-24-2012, 05:04 PM
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Originally Posted by Gpjli
As others have said I am afraid you are right. Get price for rebuild vs remanufactured from factory. If you have any doubts about the workmanship of your technician (maybe you should???) I would go with the remanu. You can search LN Engineering and Jake Raby and get an idea of what experienced professional charges for these options. Best guess is that it is indeed from main bearings, maybe motor was run w/o oil before you got it. Sad that you put money into the motor before they found the mess. Ask the dealer to help you here since it sounds like they sold you this expensive problem. Btw, where are you. KSA?
I searched a lot and I found the source it is the crankshaft bearings ( main bearings) And maybe from connecting rod bearings
And here is some pic I found it on the net

Rod bearings:
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Crankshaft bearings:
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And here it is new :
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And for KSA stand for Kingdom of Saudi Arabia ( Saudi Arabia )
 

Last edited by cayenne444; 05-24-2012 at 05:15 PM.
  #56  
Old 05-24-2012, 05:25 PM
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  #57  
Old 05-24-2012, 06:44 PM
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Yes. You would think that this is due to a lubrication failure and occurred over time. The question I guess is when it started and why. If you serviced it properly I would go back to where I bought it and talk nicely to them This kind of failure and the recent work done on the motor makes things very complicated as to determining causation or placing blame if it matters at all.
 

Last edited by Gpjli; 05-24-2012 at 06:54 PM.
  #58  
Old 05-30-2012, 11:33 AM
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Same issue

Originally Posted by cayenne444
I have the same issue and my Porsche is identical to yours
997 2006 c4s
Sliver
88000km
When cold start @ idle 3 bar
When warm @ idle .75 bar
@ 5000 rpm 3.5 bar

I took it to a Porsche mechanic and he said its normal but am little worry !!

Any update about yours ,
I have a 997 2006S Convertible with 64K - same readings. Glad to see I am not the only one, but my car does burn about a quart of oil every 3K - checking into that.
 
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