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Large Registered Member
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How many miles on your 915 trans before rebuild?
As the 915 transmission in my 136k mile Carrera failed... I was curious as to how many miles some of you have been able to eek out before rebuild time hits..... Or better yet, destroy me and tell of how many miles you have without a rebuild, and how wonderful your 915 transmission is still functioning!
 
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'85 Carrera Coupe, Marble Grey #118 JP/R6 '93 Lexus SC400, '00 Ford F-150 '70 911T- 2.7 (SOLD) |
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11-21-2005, 09:14 AM
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Registered
Join Date: May 2005
Location: norcal
Posts: 384
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My first 911sc had 200k with no rebuild on the engine or tranny and was running great. Sold it for 10k. My current sc has 164k with no rebuild and runs strong.
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11-21-2005, 09:32 AM
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Registered
Join Date: Aug 2005
Location: Michigan
Posts: 3,381
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205,000 miles. No rebuild yet. But last time I changed the fluid there were a couple of teeth in there. Still shifts pretty good though.
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Bill 997.2 |
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11-21-2005, 09:34 AM
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Senior Member
Join Date: Feb 2000
Location: Lacey, WA. USA
Posts: 25,310
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I bought my car with 135K miles on it, and a good stack of service paperwork that did not include any tranny work. The odo now says 251K, but it's been broken a couple of years. I just rebuit my tranny because all the dog teeth finally broke off first gear. ALL of them.
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Man of Carbon Fiber (stronger than steel) Mocha 1978 911SC. "Coco" |
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11-21-2005, 09:37 AM
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Join Date: Oct 2004
Location: SLC, Utah
Posts: 143
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I believe that it will vary from driver to driver. If you speed shift, force down shifts into first and second and beat the crap of your car, it probably won't last long. I had my 915 rebuilt at 80K miles. The 1st and 2nd syncros were shot by the PO. While we were in there, I had the wrech replace nearly every bearing, all syncros, dog teeth, sliders, etc. It was about $4K total including a new clutch and valve adjustment.
I'm expecting the tranny to last at least 200 - 250K miles as I treat her nice.
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Regards, Jim '86 Carrera Coupe |
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11-21-2005, 09:38 AM
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durn for'ner
Join Date: Feb 2005
Location: South of Sweden
Posts: 17,090
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This is good news !
I guess mine is barely run in with 87k miles - and still works like a charm.
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Markus Resident Fluffer Carrera '85 |
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11-21-2005, 10:13 AM
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Mine's got over 150k and it still works great. I can even perform the mystical "shift into 1st while still rolling" manuever.
Mike
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Mike 1976 Euro 911 3.2 w/10.3 compression & SSIs 22/29 torsions, 22/22 adjustable sways, Carrera brakes |
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11-21-2005, 10:18 AM
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durn for'ner
Join Date: Feb 2005
Location: South of Sweden
Posts: 17,090
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Mike,
You can do the mystic maneuver ??? At those miles !! You got some kind of Swepco 200001 Gold Plated Exclusive Edition in there ? 
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Markus Resident Fluffer Carrera '85 |
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11-21-2005, 10:27 AM
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Registered
Join Date: Sep 2004
Location: Fort Collins, CO
Posts: 631
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When I bought my SC a year ago with 112K the synchros were pretty bad. Now I've got 119K on it and they are getting worse.
I'll be rebuilding it this winter.
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Sheena is a punk rocker Suzy Is A Headbanger Heidi Is A Headcase Judy Is A Punk The Ramones' earliest titles included 'I Don't Wanna Walk Around with You,' 'I Don't Wanna Go Down to the Basement,' and 'I Don't Wanna Get Involved with You.' Dee Dee later said, "We didn't write a positive song until 'Now I Wanna Sniff Some Glue'." |
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11-21-2005, 10:30 AM
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Registered
Join Date: May 2005
Location: Bothell, WA
Posts: 239
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I have just over 160K on my car. Just rebuilt the engine, but did not touch the tranny because it is working great. I double clutch on all my downshifts - every time. I usually don't put it into 1st until I am stopped, but if I have to, a double clutch into first will get the job done without any problems.
Rex
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1975 911s 1997 Saab 900s |
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11-21-2005, 10:36 AM
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Registered
Join Date: Feb 2005
Location: Canada
Posts: 1,213
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My 72T has to have the oddest 915 yet. It will only shift into gear easily while rolling.
The tranny has never been opened but the car only has <90K. It can be prone to grinding but hopefully a clutch adjustment will solve a lot of woes.
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1972 911T targa |
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11-21-2005, 11:55 AM
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Czar of C.R.A.P.
Join Date: Jul 2003
Posts: 2,323
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80K on my 85 but it would have been fine if not for my nasty autocross habit. Crunched 2nd gear a few too many times before I figured out don't do that.
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66 912 Coupe 84 Carrera Cab Hardtop HC3.4 Hyper Carrera 2005 Dodge Magnum 5.7 HEMI Cabriolet Racing And Performance C.R.A.P. Gruppe #1 Put on some C.R.A.P. and drive.... |
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11-21-2005, 11:58 AM
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Registered
Join Date: Mar 2005
Location: Watsonville, Ca.
Posts: 732
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"84 Carrera---125K
"78 Targa-----365K
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'78 Targa Sold! '84 Carrera Sold! '01 996 Wrecked |
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11-21-2005, 12:11 PM
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Registered
Join Date: Jan 2003
Location: Nashville, TN
Posts: 41
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my second gear synchro grenaded a couple of months ago and I had the trans. rebuilt. This was in my 85 Carrera with 68k original miles.
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11-21-2005, 12:15 PM
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Large Registered Member
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Quote:
Wait... I think I'm going to be sick... 
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'85 Carrera Coupe, Marble Grey #118 JP/R6 '93 Lexus SC400, '00 Ford F-150 '70 911T- 2.7 (SOLD) |
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11-21-2005, 12:19 PM
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Registered
Join Date: Mar 2005
Location: Watsonville, Ca.
Posts: 732
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No the thing was a daily driver. The guy I bought it from took very good care of it. I sold it 6 years later with 450 or so miles on it. Still no major engine work done to it.
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'78 Targa Sold! '84 Carrera Sold! '01 996 Wrecked |
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11-21-2005, 12:22 PM
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Large Registered Member
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Ron~ That's awesome for the engine...
However, the post question is regarding the TRANSMISSION. Was it ever worked on during your ownership?
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'85 Carrera Coupe, Marble Grey #118 JP/R6 '93 Lexus SC400, '00 Ford F-150 '70 911T- 2.7 (SOLD) |
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11-21-2005, 02:16 PM
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Registered
Join Date: Mar 2005
Location: Watsonville, Ca.
Posts: 732
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Patrick,
I had it overhauled about a year after I got it. It had about 365K on it at the time. Other than a new clutch at some point before I owned it nothing was done.
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'78 Targa Sold! '84 Carrera Sold! '01 996 Wrecked |
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11-21-2005, 02:22 PM
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Large Registered Member
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Thanks!
Do you know if the P.O. had it rebuilt prior to you ownership? 365k on an original 915 should earn you a spot on a Porsche commercial!
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'85 Carrera Coupe, Marble Grey #118 JP/R6 '93 Lexus SC400, '00 Ford F-150 '70 911T- 2.7 (SOLD) |
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11-21-2005, 02:25 PM
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Registered
Join Date: Mar 2005
Location: Watsonville, Ca.
Posts: 732
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Pat,
The PO is a good friend of mine. He told me everthing about the car and gave me all the records. Including the window sticker papperwork. No, nothing was done to it. The only upgrade to the engine was the Carrera tensioners.
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'78 Targa Sold! '84 Carrera Sold! '01 996 Wrecked |
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11-21-2005, 02:30 PM
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1976 Porsche 911
