 Carb hot start questions |
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| mb911 |
 Jun 30 2022, 07:04 AM
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914 Guru  Group: Members Posts: 6,855 Joined: 2-January 09 From: Burlington wi Member No.: 9,892 Region Association: Upper MidWest 
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My car runs really well. Cold starts great. Has phenolic spacers etc but after I shut it off I have to have the throttles open at least half way and crank for 5-10 seconds to start. If I don't open the throttles then it will sound like timing is to advanced but clearly is not and it will stumble until it clears out.It has to be some excessive fuel getting down the throats somehow? What to check? Floats sticking?
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| rhodyguy |
Jun 30 2022, 12:43 PM
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#2
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Chimp Sanctuary NW. Check it out. Group: Members Posts: 22,082 Joined: 2-March 03 From: Orion's Bell. The BELL! Member No.: 378 Region Association: Galt's Gulch |
After a prolonged drive open the engine lid when you're parked. It might take a few pumps and start tries. When the cooler fuel gets to the carbs things calm down. Do not grind away with starter. Let the pump and carbs do the work. Or, put an FI cam inside and return to a fuel injection system outside. A or B.This is a case where installing a pressure return line is not going to help. (I put phenolic spacers between the carbs and intakes too)
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Posts in this topic
mb911 Carb hot start questions Jun 30 2022, 07:04 AM
brant Most likely fuel is still over-boiling. Despite ... Jun 30 2022, 07:20 AM
mb911
Most likely fuel is still over-boiling. Despite... Jun 30 2022, 07:32 AM 914Toy
Most likely fuel is still over-boiling. Despit... Jun 30 2022, 08:35 AM mb911
[quote name='mb911' post='3012261' date='Jun 30 2... Jun 30 2022, 08:48 AM sixnotfour http://forums.pelicanparts.com/porsche-911...tml#p... Jun 30 2022, 08:48 AM mb911
http://forums.pelicanparts.com/porsche-911...tml#... Jun 30 2022, 09:20 AM sportlicherFahrer Floats and fuel pressure are always good to verify... Jun 30 2022, 08:53 AM mb911
Floats and fuel pressure are always good to verif... Jun 30 2022, 09:18 AM slivel Is your hot start problem new or has it existed fo... Jun 30 2022, 10:19 AM Mark Henry I would also say float level and fuel pressure. I ... Jun 30 2022, 10:53 AM mb911 So nothing has changed this is sort of new as far ... Jun 30 2022, 02:14 PM |
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