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Join Date: Mar 2001
Location: Marysville Wa.
Posts: 22,500
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one quart in 200 miles
i swear, this is the worst stem wear i've ever seem. one full mm undersize at the valve head end, not to mention the big notch toward the tip. you can see it in the pic, no micrometer necessary. funny thing is, someone recently had replaced just one intake guide. all that effort/money for nothing. this is kind of a follow-up reply to a previous post about "should i just fix one bad valve?"
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https://www.instagram.com/johnwalker8704 8009 103rd pl ne Marysville Wa 98270 206 637 4071 |
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11-19-2007, 09:27 AM
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Registered
Join Date: Jan 2002
Location: Long Beach CA, the sewer by the sea.
Posts: 37,939
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Yikes. What was the related wear to the seat? Will that need replacement as well?
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11-19-2007, 09:44 AM
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Driving member
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Wow. Looks like it was turned in a lathe.
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Jerry '86 coupe gone but not forgotten Unlike women, a race car is an inanimate object. Therefore it must, eventually, respond to reason. |
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11-19-2007, 10:01 AM
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Join Date: Oct 2001
Location: San Carlos, CA US
Posts: 5,544
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It is the reason why I elected to spend the $600 for a valve job done right, by German Precision, while I was that deep into the engine.
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Porsche 2005 GT3, 2006 997S with bore-scoring Exotic: Ferrari F360F1 TDF, Ferrari 328 GTS Disposable Car: BMW 530xiT, 2008 Mini Cooper S Two-wheel art: Ducati 907IE, Ducati 851 |
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11-19-2007, 10:01 AM
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Not Quite Banned
Join Date: Dec 1999
Location: Ft. Lauderdale
Posts: 1,223
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John - how many miles on the engine?
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Thomas Owen 1972 911T 1972 911S |
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11-19-2007, 11:36 AM
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Registered
Join Date: Mar 2001
Location: Marysville Wa.
Posts: 22,500
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it's a '88 carrera with 130K. normal mileage where you would expect the guides to be worn enough to require a top end job, but occasionally they need one way earlier.
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https://www.instagram.com/johnwalker8704 8009 103rd pl ne Marysville Wa 98270 206 637 4071 |
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11-19-2007, 01:25 PM
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Targa, Panamera Turbo
Join Date: Aug 2004
Location: Houston TX
Posts: 22,366
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I know a guy who knows a guy that can get you some good oil...
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Michael D. Holloway https://simple.m.wikipedia.org/wiki/Michael_D._Holloway https://5thorderindustry.com/ https://www.amazon.com/s?k=michael+d+holloway&crid=3AWD8RUVY3E2F&sprefix= michael+d+holloway%2Caps%2C136&ref=nb_sb_noss_1 |
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11-19-2007, 01:28 PM
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MBruns for President
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Yowza - did he not notice the smoke? Known around the neighborhood as the mosquito man...
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Current Whip: - 2003 996 Twin Turbo - 39K miles - Lapis Blue/Grey Past: 1974 IROC (3.6) , 1987 Cabriolet (3.4) , 1990 C2 Targa, 1989 S2 |
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11-19-2007, 01:33 PM
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Registered
Join Date: Jun 2003
Location: PNW
Posts: 664
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Whew. I thought for a second those were my valves (but I was getting about 600 miles to the quart
 )Nate
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Nate |
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11-19-2007, 01:36 PM
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*****
Join Date: Apr 2006
Location: Charleston, SC
Posts: 2,359
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Dag ... I am at 1 quart every 250 miles!!
Some of that is due to oil leakage of course - valve cover bolts constantly drop oil on my headers. Can't wait to see what mine look like.
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82 911SC Coupe Chiffon / Chocolate 9.5 JEs, 964 Cams, SSIs, Dansk Exhaust, CIS (SOLD) |
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11-19-2007, 02:00 PM
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As to the other side of the fence: Thank God I've got about 30K on a top/bottom rebuild (complete),..AND, on the present run (my first) of Royal Purple MC 20W50 (as well as many others over the past year), I can say I add no more than 1/5 quart at 3K miles every stinking time......
....let's all bow our heads in a word of P-prayer.. Best,
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Recording Engineer, Administrator and Entrepeneur Designer of Fine Studios, Tube Amplifier Guru 1989 Porsche 911 Carrera Coupe 25th Anniversary Special Edition Middle Georgia |
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11-19-2007, 02:07 PM
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Moderator
Join Date: Dec 2001
Posts: 9,569
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Wow John.
You aren't kidding, you don't need a mic to see that! I would save that one to scare cheapskates with.
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'66 911 #304065 Irischgruen ‘96 993 Carrera 2 Polarsilber '81 R65 Ex-'71 911 PCA C-Stock Club Racer #806 (Sold 5/15/13) Ex-'88 Carrera (Sold 3/29/02) Ex-'91 Carrera 2 Cabriolet (Sold 8/20/04) Ex-'89 944 Turbo S (Sold 8/21/20) |
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11-19-2007, 02:12 PM
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Registered
Join Date: Jul 2002
Location: Southern California
Posts: 5,067
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Quote:
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1984 Targa |
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11-19-2007, 03:22 PM
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Probably not,..but the lab will keep all true...
Best,
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Recording Engineer, Administrator and Entrepeneur Designer of Fine Studios, Tube Amplifier Guru 1989 Porsche 911 Carrera Coupe 25th Anniversary Special Edition Middle Georgia |
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11-19-2007, 03:31 PM
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Registered
Join Date: Jul 2005
Location: Seattle
Posts: 5,824
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John, I'm hoping to be coming in for shocks before mid-January.
Don't worry. I'll have all of them done  BTW, I'm 2000 miles into an oil change, and haven't had to add a single drop
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'85 911. White - 53,000 miles bought 3-16-07. "Casper" '88 924S. Blue - 120k miles bought with 105k miles. '94 968 Coupe - White - 108,000 miles bought 9-28-17 '09 Cayman - Grey - bought 9-8-20 |
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11-19-2007, 05:37 PM
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1986 Porsche carrera coupe 3.2
Gone to California
Turbo
