 Vapor Lock, Your thoughts? |
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| dcheek |
 Jun 5 2018, 07:12 AM
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#1
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Senior Member  Group: Members Posts: 691 Joined: 30-May 06 From: Westfield, New Jersey Member No.: 6,103  |
I took my 914 out for a ride on a very hot and humid day last week. I came back and parked in my driveway which has a slight incline. A few minutes later I had trouble restarting to move the car into the garage. I noticed a girgling sound coming from the tank on the initial spool up of the fuel pump before engaging the starter. The engine would fire but would not continue to run. It sounded like it was not getting fuel. I finally got it to run, and promptly pulled into the garage. The next day I started the car with no problems. My only conclusion was some type of vapor lock situation or a clogged charcoal canister?? Or, maybe the oxygenated fuel?? I've never experienced this problem before. The fuel is fresh. The fuel pump has been replaced, along with the fuel filter. And, my car has the updated (at the factory) fuel pump location up front.
Any thoughts as to why this would happen? Dave |
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| saigon71 |
Jun 6 2018, 06:58 AM
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Advanced Member Group: Members Posts: 2,000 Joined: 1-June 09 From: Dillsburg, PA Member No.: 10,428 Region Association: MidAtlantic Region 
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Subscribed to this thread...
I drive a 2056 D-Jet. I've experienced this several times driving in hot conditions, even after relocating the fuel pump up to the front trunk. I've driven somewhere in the summer & parked for a short time. The car is a bitch to start. I've also noticed that the car will drop to an extremely low idle during hot driving conditions. I think it may be more of a "heat soak" condition than vapor lock if the fuel pump is up front. |
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| dcheek |
Jun 7 2018, 05:10 AM
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#3
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Senior Member Group: Members Posts: 691 Joined: 30-May 06 From: Westfield, New Jersey Member No.: 6,103 |
QUOTE(saigon71 @ Jun 6 2018, 04:58 AM)  Subscribed to this thread... I drive a 2056 D-Jet. I've experienced this several times driving in hot conditions, even after relocating the fuel pump up to the front trunk. I've driven somewhere in the summer & parked for a short time. The car is a bitch to start. I've also noticed that the car will drop to an extremely low idle during hot driving conditions. I think it may be more of a "heat soak" condition than vapor lock if the fuel pump is up front. Have you tried to find out the cause? If so, what was the procedure? Dave |
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| saigon71 |
Jun 10 2018, 03:09 PM
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#4
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Advanced Member Group: Members Posts: 2,000 Joined: 1-June 09 From: Dillsburg, PA Member No.: 10,428 Region Association: MidAtlantic Region
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QUOTE(dcheek @ Jun 7 2018, 07:10 AM) QUOTE(saigon71 @ Jun 6 2018, 04:58 AM) Subscribed to this thread... I drive a 2056 D-Jet. I've experienced this several times driving in hot conditions, even after relocating the fuel pump up to the front trunk. I've driven somewhere in the summer & parked for a short time. The car is a bitch to start. I've also noticed that the car will drop to an extremely low idle during hot driving conditions. I think it may be more of a "heat soak" condition than vapor lock if the fuel pump is up front. Have you tried to find out the cause? If so, what was the procedure? Dave Dave: Here is some interesting reading on the subject. It is a common problem with D-Jet. http://www.914world.com/bbs2/index.php?sho...7465&hl=cht rheostat&st=0 http://www.914world.com/bbs2/index.php?showtopic=298261 From what it looks like, the solution is to run a variable potentiometer in parallel to the CHT so you can adjust it when the engine is hot. |
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Posts in this topic
dcheek Vapor Lock Jun 5 2018, 07:12 AM
76-914 I seriously doubt the fuel pump vapor locked up fr... Jun 5 2018, 02:48 PM ndfrigi silly answer sir! How much gas you have in ur ... Jun 5 2018, 03:34 PM
dcheek
silly answer sir! How much gas you have in ur... Jun 6 2018, 05:29 AM theer Fuel pressure regulator? Jun 5 2018, 03:39 PM cuddy_k To me, the incline and gurgling noise suggest low ... Jun 5 2018, 06:15 PM 76-914 Check the injectors for leak down, also. :beer2: Jun 5 2018, 06:42 PM The Cabinetmaker I think this has nothing to do with the pump. I wo... Jun 6 2018, 07:56 AM |
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