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. |
ClayPerrine |
Jul 15 2024, 06:12 AM
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#2
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Life's been good to me so far..... Group: Admin Posts: 15,806 Joined: 11-September 03 From: Hurst, TX. Member No.: 1,143 Region Association: NineFourteenerVille |
Here is what I would do to diagnose it.
Get a mechanical fuel pressure gauge. Take your engine lid off the car. Hook the pressure gauge up so the hose is long enough that you can use duct tape to tape it to the rear window, where it can be seen from the driver's seat with the rear view mirror. (Fuel in the passenger compartment is not a good idea) Then drive it in the same conditions (as close as you can get) on the same route. If it happens again, check the fuel pressure gauge. If it is vapor locked, you will not have fuel pressure. I would consider moving the pump up front as they did in the 75 and later cars. It may not be the absolutely concourse stock location, but it would help if it is vapor locking. |
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