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gjs
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Do I need a valve guide seal or a valve job?
Was so proud to be replacing fuel line myself. 88 911 220,000 miles. First the fuel line rubber hose ruptured by inj fuel rail. Removed the intake manifold to send orig fuel line to Mr. Hippe in Fla for recond. Pulled the injectors while there for reconditioning. The intake valve #4 which luckily was closed has this puddle of oil in the photo. All others appear dry, but when I opened valve to check the play, there was none, the oil drains out and u see the carbon on the lower valve seat. This wiped away easily, see last picture I think next is to remove exhaust valve cover and check for play. Could this be a bad stem/guide seal. I am not sure how to proceed. What the fate of my daily driver, or used to be. Thanks for such knowledgeable help. Glenn
#4 on right with a puddle of oil, #5 on left  #4  #4  #4  #4 after opening valve, carbon on seat 
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88 911 Carrera Cab, SW chip, B&B headers, custom sport muff 2015 Cayman S 1948 Willy's Overland Jeepster 2013 Chev Sub 2004 Nisson Xterra Last edited by glennspiegler; 12-18-2011 at 02:43 PM.. |
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12-18-2011, 02:27 PM
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gjs
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#4 opened so oil ran out and some carbon
 #4 open and wiped clean 
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88 911 Carrera Cab, SW chip, B&B headers, custom sport muff 2015 Cayman S 1948 Willy's Overland Jeepster 2013 Chev Sub 2004 Nisson Xterra |
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12-18-2011, 02:41 PM
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Join Date: Oct 2008
Location: Nash County, NC.
Posts: 8,505
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I dont know how you got that much oil that high.
Bruce |
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12-18-2011, 05:28 PM
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gjs
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see below
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88 911 Carrera Cab, SW chip, B&B headers, custom sport muff 2015 Cayman S 1948 Willy's Overland Jeepster 2013 Chev Sub 2004 Nisson Xterra Last edited by glennspiegler; 12-19-2011 at 02:56 AM.. |
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12-19-2011, 02:53 AM
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gjs
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It does not burn oil. Approx one qt per 1500 miles. Thought it was coming from valve guides or a bad valve guide seal, is that not possible? Glenn
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88 911 Carrera Cab, SW chip, B&B headers, custom sport muff 2015 Cayman S 1948 Willy's Overland Jeepster 2013 Chev Sub 2004 Nisson Xterra |
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12-19-2011, 02:55 AM
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Your oil consumption is good, but with 220,000 miles I would prepare for a rebuild. I would do a complete top and bottom end. After that it should be good for another 200,000.
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Ed 1973.5 T |
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12-19-2011, 03:17 AM
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gjs
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This is a bad time to give up the car. Would it hurt to run it until she burns oil and then do a top end. The rings were done at 70,000. Glenn
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88 911 Carrera Cab, SW chip, B&B headers, custom sport muff 2015 Cayman S 1948 Willy's Overland Jeepster 2013 Chev Sub 2004 Nisson Xterra |
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12-19-2011, 04:13 AM
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I find it interesting the rings were done at 70,000. My '86 engine needed valve guides at that mileage, but the rings and cylinders still looked OK. I put in new rings since I had it apart for the guides anyway.
It is a high mileage engine. It is up to you, but keep in mind how the cost goes up if it jumps timing from worn timing chains or if it drops a valve. It must have worn valve seals and guides for that much oil to accumulate on the intake side. It's your car and your choice. I would do it over the winter so that in the spring when the weather is nice I could enjoy driving it with out worries.
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Ed 1973.5 T |
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12-19-2011, 05:33 AM
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The Other Woman
