Do I need to replace the fuel distributor lines in my CIS system? |
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Do I need to replace the fuel distributor lines in my CIS system? |
messick |
Jul 10 2020, 12:47 PM
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#1
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Newbie Group: Members Posts: 39 Joined: 15-June 20 From: Orange, CA Member No.: 24,381 Region Association: Southern California |
So, in my quest to get my "sitting for 15 years" 914 back on the road, I've already ordered new SS tunnel lines and new rubber line for the tank side and for connecting to the fuel pump, and for the connecting back to the return line tunnel hose.
Most of the engine bay stuff is already metal (or at least not just regular rubber fuel line) and looks fine. However, the lines between the fuel distributor and the injectors themselves is just plastic. Should I replace those outright? Checking other forums, and the fact that no one seems to just sell a kit to replace those lines, gives me the impression that those should only be replaced if they are actively leaking. But, with that recent fire, I figured I'd ask here since I'm already in the middle of replacing lots of the fuel line stuff anyway. |
Dominic |
Jul 11 2020, 12:20 PM
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#2
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Dominic Group: Members Posts: 992 Joined: 14-January 03 From: Vacaville, CA Member No.: 149 Region Association: Northern California |
So, in my quest to get my "sitting for 15 years" 914 back on the road, I've already ordered new SS tunnel lines and new rubber line for the tank side and for connecting to the fuel pump, and for the connecting back to the return line tunnel hose. Most of the engine bay stuff is already metal (or at least not just regular rubber fuel line) and looks fine. However, the lines between the fuel distributor and the injectors themselves is just plastic. Should I replace those outright? Checking other forums, and the fact that no one seems to just sell a kit to replace those lines, gives me the impression that those should only be replaced if they are actively leaking. But, with that recent fire, I figured I'd ask here since I'm already in the middle of replacing lots of the fuel line stuff anyway. I my many years of owning VW's with CIS, I have only had one S.S. braided plastic CIS fuel line (one of the lines going to the Warm Up Reg) fail in my VW Rabbit Caddy, if you smell any fuel in the engine compartment when the engine is running, start moving the lines around until you find the leak. It was tricky to find inside of the braided line.. The bare (plastic) lines were stock in many 911's with CIS. Easier to see any damage. But, if you want piece of mind, you might want to replace any lines that have signs of wear or damage...they are all over 40 years old. |
messick |
Jul 14 2020, 01:26 PM
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#3
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Newbie Group: Members Posts: 39 Joined: 15-June 20 From: Orange, CA Member No.: 24,381 Region Association: Southern California |
So, in my quest to get my "sitting for 15 years" 914 back on the road, I've already ordered new SS tunnel lines and new rubber line for the tank side and for connecting to the fuel pump, and for the connecting back to the return line tunnel hose. Most of the engine bay stuff is already metal (or at least not just regular rubber fuel line) and looks fine. However, the lines between the fuel distributor and the injectors themselves is just plastic. Should I replace those outright? Checking other forums, and the fact that no one seems to just sell a kit to replace those lines, gives me the impression that those should only be replaced if they are actively leaking. But, with that recent fire, I figured I'd ask here since I'm already in the middle of replacing lots of the fuel line stuff anyway. I my many years of owning VW's with CIS, I have only had one S.S. braided plastic CIS fuel line (one of the lines going to the Warm Up Reg) fail in my VW Rabbit Caddy, if you smell any fuel in the engine compartment when the engine is running, start moving the lines around until you find the leak. It was tricky to find inside of the braided line.. The bare (plastic) lines were stock in many 911's with CIS. Easier to see any damage. But, if you want piece of mind, you might want to replace any lines that have signs of wear or damage...they are all over 40 years old. Yeah, definitely going to have a buddy or two with a flash light and/or fire extinguisher on hand the first time I turn on the fuel pump after I get all the hoses hooked up. I was just wondering if the CIS hoses were on the "immediately replace before putting fuel in the tank, no matter what" list like the rubber hoses and plastic tunnel lines are. But, sounds like they are not. Thanks all. |
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