Is this the dreaded 914 vapor lock?, Asking for your ideas and thoughts |
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Is this the dreaded 914 vapor lock?, Asking for your ideas and thoughts |
Artfrombama |
Jul 14 2024, 05:04 PM
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#1
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Member Group: Members Posts: 156 Joined: 21-January 24 From: Alabama Member No.: 27,870 Region Association: South East States |
Drove my 914 to a PCA function yesterday morning, 93f and humid.
After driving on the interstate at 70-75mph for around 45 miles I exited and the motor died. I had enough momentum and coasted into a gas station/convenience store where I topped off the tank and tried to restart the car, no luck. The car would fire, run a few seconds and die then refused to re-start for another 10-15 minutes then the same scenario again. No tools to diagnose or repair. While waiting on AAA for three hours (another story) I would occasionally try to start the car with the same results. Today, car started normally, runs normally. 1974 L-jet, original three bung fuel pump, original location. 500 miles on new tank, sock, filter, ss lines. |
Chris914n6 |
Jul 14 2024, 10:19 PM
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#2
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Jackstands are my life. Group: Members Posts: 3,390 Joined: 14-March 03 From: Las Vegas, NV Member No.: 431 Region Association: Southwest Region |
The 3-port recirculates fuel around the engine, instead of putting it back into the tank. So yes, vapor lock happens, because the fuel gets too hot.
You need to wrap the pump so it doesn't get hot air blown on it, from the heat exchanger/heater outlet and the engine cooling air. It wouldn't hurt to insulate the fuel lines that cross over the engine. |
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