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				Oil pressure relieve valve - questions
			 
			I want to change the oil pressure relieve valve spring and the oil pressure safety valve spring and the pistons. I am wondering how much oil will come out of there if I take them apart without draining the oil first. A little bit, a couple of quarts or all? Has anyone done this before without draining the oil? How tough is it to get the pistons out of there. Will a magnet work? Ingo 
				__________________ 1974 Targa 3.6, 2001 C4 (sold), 2019 GT3RS, 2000 ML430 I repair/rebuild Bosch CDI Boxes and Porsche Motronic DMEs Porsche "Hammer" or Porsche PST2, PIWIS III - I can help!! How about a NoBadDays DualChip for 964 or '95 993 | ||
|  03-20-2004, 08:41 PM | 
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| Bird.  It's the word... | 
			Both those caps are very low on the engine.  I imagine it would be just like undoing the sump plug!  If it's new(ish) oil I'd drain the oil into a clean 98c bucket and return the oil when you're finished.
		 
				__________________ John Forcier Current: 68L 2.0 Hotrod - build underway | ||
|  03-21-2004, 12:00 AM | 
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| Registered Join Date: Dec 2000 Location: The Hague, Netherlands 
					Posts: 806
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			One mine not much more than a quart. Also depends on how fast you work. A magnet worked for me to get the piston out.
		 
				__________________ Peter '13 981S '73 911T '05 996 4S cab, now gone '70 911S Targa, now gone | ||
|  03-21-2004, 02:52 AM | 
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			I figured the oil pressure relieve valve dumps into the gravity feed line. Wouldn't that dump the entire tank once I take the piston out? Anyway, I have to change the oil pretty soon. So I just hold off on it. Ingo 
				__________________ 1974 Targa 3.6, 2001 C4 (sold), 2019 GT3RS, 2000 ML430 I repair/rebuild Bosch CDI Boxes and Porsche Motronic DMEs Porsche "Hammer" or Porsche PST2, PIWIS III - I can help!! How about a NoBadDays DualChip for 964 or '95 993 | ||
|  03-21-2004, 05:24 PM | 
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