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				CIS Return Lines?
			 
			I’m installing an 83 3.0 in a 79 SC and it looks like the return lines have conflicting connections.  Can someone confirm that these are indeed the return lines and if so is there a part missing or do I need to replace the line from the engine?  Hoping not to go the simple route of cutting the fittings and connecting the lines.  Thanks - Chris    
				__________________ Looking for: 1969 911T - Engine - 6196603 & Gearbox - 7196742 1969 911S - 901/13 Gearbox - 7195559 | ||
|  01-22-2023, 06:22 AM | 
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| Registered Join Date: Sep 2001 Location: Columbus, OH 
					Posts: 1,011
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			My 79 CIS had the male cone with nut on the engine side, which screwed on to the female cone chassis side return line.  I do believe this configuration changed over the years, so you will likely need some adapter.  I can't speak to the 83 CIS, but your 79 should have 3 lines that go through a metal retaining bracket on the driver front of the engine bay.  1 is fuel in, 1 is fuel return, and the big one is the brake booster vacuum line.  The fuel in, should terminate in a J bend fitting that goes to the top of the accumulator.
		 
				__________________ Doug 79 SC Targa w/ ITBs, 2004 Cayenne Turbo Last edited by na2ub; 01-22-2023 at 07:08 PM.. | ||
|  01-22-2023, 08:57 AM | 
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				Missing. It?
			 
			Thanks If anyone has more info please do post. Thanks - Chris Quote: 
 
				__________________ Looking for: 1969 911T - Engine - 6196603 & Gearbox - 7196742 1969 911S - 901/13 Gearbox - 7195559 Last edited by Stophos; 01-22-2023 at 11:45 AM.. | ||
|  01-22-2023, 09:27 AM | 
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| Registered Join Date: Sep 2001 Location: Columbus, OH 
					Posts: 1,011
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			I went an checked (and edited my above post).  On my 79, the return to tank is a FEMALE cone (M14) fitting.    
				__________________ Doug 79 SC Targa w/ ITBs, 2004 Cayenne Turbo | ||
|  01-22-2023, 07:32 PM | 
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| Registered Join Date: May 2004 Location: New Hampshire 
					Posts: 6,153
				 |    na2ub- Actually this is a M14 Male cone. Male fittings have external threads while Female fittings have internal threads. Also, I sent a email reply to Stophos. Len   | ||
|  01-23-2023, 06:30 AM | 
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			Thanks to all that responded and to Len who solved my issue!
		 
				__________________ Looking for: 1969 911T - Engine - 6196603 & Gearbox - 7196742 1969 911S - 901/13 Gearbox - 7195559 | ||
|  01-26-2023, 03:19 PM | 
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