Car won't start after warmed up |
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Car won't start after warmed up |
Hammy |
Jan 25 2007, 06:08 PM
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#1
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mr. Wonderful Group: Members Posts: 1,826 Joined: 20-October 04 From: Columbia, California Member No.: 2,978 Region Association: Northern California |
This is continued from the NARP board a while back. I'm still having the problem so I'm posting here
This is a carbed (dual Weber) 1.7 It happens like this: I drive the car around town, gets up to full temp, stop at a store to go in real quick, come back out a couple minutes later and turn her over... Crank, crank, crank, crank. Doesn't fire up This happens sometimes, and then sometimes it doesn't happen, just fires right up. (IMG:style_emoticons/default/confused24.gif) Also, the car starts fine and easily when the engine is cold. I can't tell if it's fuel related. I don't know if it's getting too much fuel when trying to start? I usually turn the engine over, and step the pedal down half way and it fires up. When this no start problem happens, no matter what I do with the gas pedal it doesn't fire. Sometimes I can get it to fire by holding the pedal down all the way and cranking forever and it'll start and run at like 100rpm, really slow like a tractor. I usually try and lightly tap the pedal to get it going strong, sometimes that'll work and sometimes it'll die. Then I can't tell if it's not getting enough fuel when trying to start - Because If I turn the engine over and don't touch the gas at all, it won't start. I normally have to push the gas down half way for a normal start. Or is it ignition related? Could incorrect timing cause it to do this? Dying battery? Engine seems to turn over fine. I have 12.4 volts across the battery posts with the engine off. Or Vapor lock? My fuel pump is just below the hell hole. Also, I've checked for any pinched fuel hose/lines and can't find any. I wouldn't think it was that because once the engine gets started again, it runs perfectly fine. I'm just scared to turn it off. Any help MUCH appreciated. This is killing me. |
Hammy |
Jan 26 2007, 01:01 AM
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#2
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mr. Wonderful Group: Members Posts: 1,826 Joined: 20-October 04 From: Columbia, California Member No.: 2,978 Region Association: Northern California |
I do have a heater valve right near the pump, but it's hooked up to the heater hose and going into the long. Maybe it popped off? I'll have to check. I also don't have my passenger side J heater tube capped off.
Clayton, they're dual 40's. I don't know the look of the exhaust when I finally get it to start because I'm usually so damn happy I don't think to look (IMG:style_emoticons/default/biggrin.gif) Also, putting the pedal to the floor and holding it there is usually the way I've gotten it to start when it won't start. In fact I think that's the only way I've gotten it to start. But I'm usually cranking it over and over and finally it'll fire up and run real lumpy and slow. So I know pedal held to the floor HAS worked to get it started. I can't remember if it's been that way every time though. Now for a real stupid question, where's the venturi? I know the basics of carbs but I don't know where all the stuff is yet..... |
SirAndy |
Jan 26 2007, 01:10 AM
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#3
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Resident German Group: Admin Posts: 41,669 Joined: 21-January 03 From: Oakland, Kalifornia Member No.: 179 Region Association: Northern California |
Also, putting the pedal to the floor and holding it there is usually the way I've gotten it to start when it won't start. In fact I think that's the only way I've gotten it to start. still sounds like fouled plugs, flooded engine and leaking carbs .... (IMG:style_emoticons/default/biggrin.gif) |
Hammy |
Jan 26 2007, 01:13 AM
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#4
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mr. Wonderful Group: Members Posts: 1,826 Joined: 20-October 04 From: Columbia, California Member No.: 2,978 Region Association: Northern California |
Also, putting the pedal to the floor and holding it there is usually the way I've gotten it to start when it won't start. In fact I think that's the only way I've gotten it to start. still sounds like fouled plugs, flooded engine and leaking carbs .... (IMG:style_emoticons/default/biggrin.gif) Yes.... I know (IMG:style_emoticons/default/smile.gif) How much is a carb rebuild gonna hit me? |
Scott Carlberg |
Jan 27 2007, 02:23 AM
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#5
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Porsche MOTORSPORTS Group: Members Posts: 1,595 Joined: 17-April 03 From: Modesto, Ca Member No.: 580 |
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