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Old 11-20-2016, 09:04 AM   #1
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Exclamation Cold Start Engine Noise/ Non Magnetic Flakes in Oil filter

Good Morning All,

I am new to this forum and Have a 1998 Porsche Boxster. I have an engine clatter / Rattle in the morning for about 20-30 seconds. Once the oil pressure builds, the noise quiets down to an HLA tick..

Yesterday, I switched oils from Mobil 1 synthetic 10w30 to 5w 40 (Liquimoly). The noise is quieter and for less time when sitting overnight.

I am thinking that the heavier oil is not bleeding down as much as the 10w30 and That
my timing chain tensioners as well as lifters are bleeding down.

I have some questions on this:

Is this non magnetic material due to chain tensioner shoe wear ?

Should The lash adjusters be replaced ?

should the sump plate be removed and checked for debris ?

Has anyone had experience with this ? If so, what repairs did you make ?


Thank
you,

50Shadz

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Old 11-20-2016, 09:29 AM   #2
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Its a ticking time bomb, my buddy's boxster blew in the next 3k miles. Get it checked now@!!!!!
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Old 11-20-2016, 09:41 AM   #3
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I wouldn t panic. Definitely drop thezump and see whats in there. If its fairly clean you are ok. Small bits of pkastic are ok and aluminum bits usually are debris that come from fhe origknal machining that tend to show up years later.

The start up clatter is also very common although 30 seconds does seem long. Try changjng out the tensionefs if itreally bothers you.

And dont run 10-30 its too thin.
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Old 11-20-2016, 02:38 PM   #4
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If it is ,as you speculate and oil pressure issue -an easy fix(??) is the upgraded piston+spring in the oil pump.Lots in Search.
The default oil recommendation is JGDT40.
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Old 11-21-2016, 02:18 AM   #5
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Thank you all for your replies. I plan to stay with the 5w40 oil. I bought this back in may and have been slowly researching and correcting wrong doings by the previous owner...



Thanks again
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Old 11-23-2016, 03:11 PM   #6
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Check your cam deviation values...
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Old 11-25-2016, 08:41 AM   #7
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Thank you all.


Gelbster, who sells this updated piston kit for the oil pump ??


Thanks,

50Shadz

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boxster 986 , clatter , cold , engine , startup


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