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Registered
Join Date: Mar 2005
Location: Stockholm/Sweden
Posts: 9
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Rockershaft retainers
Anyone who knows where these come from and if it is possible to get new ones?
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03-03-2005, 12:35 PM
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Registered
Join Date: Mar 2001
Location: Marysville Wa.
Posts: 22,424
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new one on me. why would they be needed? it's not like the shafts come out that regularly. if they do, either the torque was too little or the bore in the cam tower is worn. then what about the other side?
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https://www.instagram.com/johnwalker8704 8009 103rd pl ne Marysville Wa 98270 206 637 4071 |
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03-03-2005, 02:51 PM
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Join Date: Jan 2003
Location: Langley,B.C.
Posts: 11,991
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Wow, never seen that before!
Jeff
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Turn3 Autosport- Full Service and Race Prep www.turn3autosport.com 997 S 4.0, Cayman S 3.8, Cayenne Turbo, Macan Turbo, 69 911, Mini R53 JCW , RADICAL SR3 |
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03-03-2005, 03:26 PM
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Irrationally exuberant
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Could the motor in question be from a 996 by any chance?
-Chris
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'80 911 Nogaro blue Phoenix! '07 BMW 328i 245K miles! http://members.rennlist.org/messinwith911s/ |
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03-03-2005, 05:07 PM
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Join Date: Mar 2004
Location: So. Ca.
Posts: 521
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This system was used in the late 80's and early 90's for 935 and 962 Rocker Shafts due to running at slightly higher RPMs. I do not think they are currently produced, but would not be very difficult to fabricate since it is merely a cap that fits on the non threaded end.
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03-03-2005, 06:08 PM
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Forced Induction Junkie
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Ok, I don't know about the rest of you, but I'm confused.
 The title of this thread is 996, but the cylinder head in this photo is obviously an air-cooled version. The photo shows cam tower retaining nut that has what appears to be a retaining clip near the rocker arm cap? What type of engine is this photo relating to? I take it that this type of retention system is used because of the increased valve spring pressure may cause the rocker arm to walk over time? TIA
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Dave '85 930 Factory Special Wishes Flachbau Werk I Zuffenhausen 3.3l/330BHP Engine with Sonderwunsch Cams, FabSpeed Headers, Kokeln IC, Twin Plugged Electromotive Crankfire, Tial Wastegate(0.8 Bar), K27 Hybrid Turbo, Ruf Twin-tip Muffler, Fikse FM-5's 8&10x17, 8:41 R&P |
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03-04-2005, 06:11 AM
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Super Moderator
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It almost looks as if the rocker shaft is notched to accept that "spring" or "arm" that comes off it... weird stuff...
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Chris ---------------------------------------------- 1996 993 RS Replica 2023 KTM 890 Adventure R 1971 Norton 750 Commando Alcon Brake Kits |
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03-05-2005, 09:02 AM
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Registered
Join Date: Mar 2005
Location: Stockholm/Sweden
Posts: 9
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The engine is a 3,0 RS and it has been modified to almost full RSR spec. I have not seen that solution to hold the rockershafts before and I thought that this would be the right place to ask the question. I´m doing a rebuild on the engine and one of the retainers was broken and I just wanted to hear if it was possible to buy the part from some where. It is the part with the pin that holds the cap that I´m interested in.
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03-05-2005, 12:01 PM
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The Blue Pheonix
1985 Porsche 930 Fac. Slantnose 3.3l
1970 Porsche 911 S 
