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1987 Carrera G50 Lube change
Hello! I recently purchased a 1987 Carrera 3.2 with G50 transmission. 57000 miles, Guards red and beautiful. I want to change the lube in the transmission but am unfamiliar with the process.
If anyone has the process or a web link, tech specs on type and amount of lubricant, suggestions as to the brand, and torque specs, I would really appreciate learning these things. I've been running Swepco in my 1986 951 with great results. Much quieter and shifts well. Also looking to see if there are other Pelicans in the upstate SC area. Thanks! Kendall 
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"Chance favors the prepared mind." |
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07-11-2010, 04:42 PM
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Diss Member
Join Date: Jul 2002
Location: SC - (Aiken in the 'other' SC)
Posts: 5,020
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The technical spec book lists the G50 as taking 3 liters of 90 weight GL5 gear lube. There is a drain plug on the bottom and a fill plug on the side. From personal experience I can say that it definitely took less then a gallon to fill it. Torque for the plugs is listed as 30 Nm (22 ft-lbs).
Swepco made an improvement in the shifting on my car and is generally recommended.
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- "Speed kills! How fast do you want to go?" - anon. - "If More is better then Too Much is just right!!!" - Mad Mac Durgeloh -- Wayne - 87 Carrera coupe -> The pooch. |
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07-11-2010, 04:52 PM
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Thanks! Great information. I'll give it a shot this week.
Kendall
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"Chance favors the prepared mind." |
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07-11-2010, 06:10 PM
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timeless beauty
Join Date: Oct 2004
Location: Cape Cod
Posts: 660
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Make sure you loosen the fill plug before you drain, this is to ensure you are able to fill after draining. Good advice that some have posted here. I did mine and it helps the cold gear box shifting.
All the best
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Bob 87 targa |
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07-11-2010, 06:23 PM
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muck-raker
Join Date: Jan 2009
Location: Coastal PNW
Posts: 3,059
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some people will recommend Mobil Delvac over Swepco in their G50's. I recommend purchasing the hand pump from our host, it will make the job go a lot easier.
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STONE '88 Cabriolet, using EP Slick 20w50 partial synthetic Snake Oil...just as Rommel intended.  Deny Everything; Admit Nothing; and Always Make Counter-accusations 
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07-11-2010, 06:28 PM
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3.4 Bigger is better
Join Date: Nov 2003
Location: South Dakota
Posts: 1,497
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Welcome to PP. Synthetic is recommended for the G50 transmission. I have used the off the shelf Mobil 1 but the best that I have used is the Mobil Delvac Synthetic Gear Oil. It is Porsche factory fill. Here is a link to where to buy. Ln Engineering Owner of LN Engineering is a member here at Pelican and contributes a great deal of knowledge as well
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Michael 88 911 Diamond Blue CE Carrera 3.4 HC3.4 member 2020 Honda Passport |
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07-11-2010, 08:05 PM
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Quote:
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2022 GT3 Manual, 73 Carrera RS 2.9 Twin-Plug MFI Carbon Fiber Replica Former: 18 GT3 Manual,16 Cayman GT4, 73 911S, Two 951S's, 996 C2, 993 C2, BMW 635CSi Euro, Ferrari 550 Maranello, 06 Evo IX w/ many mods |
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07-11-2010, 08:07 PM
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Registered
Join Date: Oct 2006
Location: So-Cal
Posts: 428
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I found it here.
Synthetic Gear Oil, 75W 90 - Oils - Lubricants - Power Tools & Metalworking : Grainger Industrial Supply I used this method for filling. G50 Synthetic Tranny Oil Change Completed (pics)
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1987 Carrera |
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07-11-2010, 09:30 PM
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1973 Porsche Carrera RS 2.7 Replica 2.7RS
