 vapor lock, on a 95 degree day |
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| JimN73 |
 Jun 16 2012, 07:55 PM
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#1
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Senior Member  Group: Members Posts: 535 Joined: 6-October 07 From: Gig Harbor Member No.: 8,192 Region Association: Pacific Northwest  |
This afternoon outside temp was at least 94. the car took a long time to start:crank, pump, wait, pump, crank, curse, crank.
Finally started, when I finished my errand it didn't want to start again. Vapor lock?? Is there a cure?? thanks, |
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| JimN73 |
Jun 16 2012, 09:06 PM
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Senior Member Group: Members Posts: 535 Joined: 6-October 07 From: Gig Harbor Member No.: 8,192 Region Association: Pacific Northwest |
George, the pump is in the back. The problem is that I had not yet run the car today. There was no heat from the engine or the exhaust, just the sun.
So, the question is: can vapor lock occur with just atmospheric conditions? Jim |
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| Mike Bellis |
Jun 16 2012, 09:09 PM
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#3
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Resident Electrician Group: Members Posts: 8,345 Joined: 22-June 09 From: Midlothian TX Member No.: 10,496 Region Association: None 
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QUOTE(JimN73 @ Jun 16 2012, 08:06 PM)  So, the question is: can vapor lock occur with just atmospheric conditions? Jim Yes, The boiling temp of gasoline is -45 F. So above -45F gasoline will vaporize allowing engines in arctic temps to operate. If left in the sun, your engine compartment is over 100F. |
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Posts in this topic
JimN73 vapor lock Jun 16 2012, 07:55 PM
SirAndy This afternoon outside temp was at least 94. the ... Jun 16 2012, 08:10 PM JimN73 IDF 40s on a 2056.
I've been talking to Mar... Jun 16 2012, 08:21 PM flash914 Where is the fuel pump. Move the pump to the front... Jun 16 2012, 08:32 PM JimN73 Gordon, the pump is protected from the sun and the... Jun 16 2012, 08:44 PM GeorgeRud If the pump is in the back, it is not protected fr... Jun 16 2012, 09:00 PM kg6dxn Put a bypass style fuel regulator and return fuel ... Jun 16 2012, 09:06 PM
JimN73 Thanks, Mike. Jun 16 2012, 09:11 PM kg6dxn Bypass regulator will eliminate this.
Once you ha... Jun 16 2012, 09:18 PM SirAndy Also, make sure you're using the thick FI phen... Jun 17 2012, 12:06 PM
Elliot Cannon My pump is on the firewall under the engine and va... Jun 17 2012, 12:07 PM kg6dxn
My pump is on the firewall under the engine and v... Jun 17 2012, 12:16 PM Elliot Cannon
My pump is on the firewall under the engine and ... Jun 17 2012, 12:34 PM |
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