Strange Running Diag...., Weak idle, backfire thru exhaust, backfire thru carb. |
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Strange Running Diag...., Weak idle, backfire thru exhaust, backfire thru carb. |
1972 914 2.0 |
Sep 28 2016, 06:12 PM
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#1
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Member Group: Members Posts: 74 Joined: 9-December 13 From: United States Member No.: 16,745 Region Association: MidAtlantic Region |
1972 914 with '74 2.0L
The Problem: Car is hard to start. It backfires through the carb on light accel. It backfires through exhaust on decel. And it idles very low and wants to die after stopping. Runs fantastic on wide open. The Facts: Weber 40IDFs (freshly rebuilt and tuned, ran great for about 500 miles) Freshly Rebuilt engine (ran fine for around 2000 miles) All new ignition system (distributor, plugs, points, wires) Newer Tarret Fuel Pump (front mounted) Rubber fuel lines from tank to engine (not OE) Checked the valves, they're fine. Questions: Could It be low fuel pressure, Degrading fuel lines, Timing issue, Vacuum leak.... I'm at a loss currently. Lets hear your thoughts and experiences. Thanks Chris |
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