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Old 60's Porsche Tech
Join Date: Jan 2009
Posts: 369
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993 engine gurus need advise??
How long do valve guides go on a 1995 993 that has had proper maintenance? My 85 carrera with 172k on the clock still only burns a quart every 1500 and has never had the heads off, can I expect the same kind of life out of 993? I am thinking of purchasing well maintained with records 78k 1995. Please advise, JL
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1987 911 Cab TRE engine  1952 356A sold  ,1960 356B totaled hit by drunk totaled  1979 911 sc Targa sold,1984 911 3.2 Targa sold,1985 911 3.2 Coupe sold 1987 3.2 coupe sold to my son PARTS ENDLESS WORK $$$$$ PREPARING and driving your PORSCHE anywhere with confidence PRICELESS!!
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04-23-2009, 01:41 AM
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Registered
Join Date: Jan 2005
Location: north america
Posts: 2,228
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I think from what I have read, the cars that suffer from valve guide wear are the ones that sit in california traffic jams roasting. These 993 can go for a very long time.... there's a member over on rennlist with close to 240k miles and it still runs perfect.
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04-23-2009, 04:01 AM
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Moderator
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What Herman said - Just as not all Carerra's had bad guides, not all 964's or 993's do either. While some are experiencing earlier than normal wear, others are seeing legendary Porsche durability. I agree that anecdotal evidence indicates that the stop and go, high engine bay heat, rarely hitting redline cars are the ones predominantly suffering from valve guide wear and/or SAI faults.
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Don Plumley M235i memories: 87 911, 96 993, 13 Cayenne |
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04-23-2009, 06:59 AM
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1987 Porsche Carrera 3.2 
