94 SN efi vapor lock hot fuel pump
Printed From: CorrectCraftFan.com
Category: Repairs and Maintenance
Forum Name: Engine Repair
Forum Discription: Engine problems and solutions
URL: http://www.CorrectCraftFan.com/forum/forum_posts.asp?TID=48920
Printed Date: November-27-2024 at 4:25am
Topic: 94 SN efi vapor lock hot fuel pump
Posted By: Mikewolf
Subject: 94 SN efi vapor lock hot fuel pump
Date Posted: June-23-2020 at 9:55am
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My nautique starts great when the engine is cool, if I run for a while and then it sit with the engine cover open, it will restart as it should, if I leave the engine cover closed for 1-4 hours, it doesn’t want to start and there’s no fuel pressure. I can often fix this by pouring water over the fuel pumps to cool them. I’m not sure where to start. Should I replace the hp fuel pump? The supply pump? Where do I find these? It’s a 94 with efi |
Replies:
Posted By: Mikewolf
Date Posted: June-23-2020 at 11:29am
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https://www.skidim.com/mobile/prodinfo.asp?number=RA080022 Is this the one I need? Hard to tell from the description, but looks like my hpfp |
Posted By: gun-driver
Date Posted: June-23-2020 at 1:57pm
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More information on what motor and ignition system would help but this may be the same pump as you listed. https://www.summitracing.com/parts/crt-p61171" rel="nofollow - Carter fuel pump |
Posted By: Mikewolf
Date Posted: June-23-2020 at 2:48pm
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That does look just like my pump. I may get it to try. My boat has the 351 with the pro tec efi and a Dui distributor that was added when the original ignition failed. |
Posted By: Mikewolf
Date Posted: June-23-2020 at 2:54pm
| Fyi, that same carter pump is even cheaper at rock auto $95 for the p61171 pump. |
Posted By: Jonny Quest
Date Posted: June-23-2020 at 4:40pm
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If you have EFI, I'm assuming that it is the Holley-based throttle-body EFI, correct? After ProTec ignition failed, are you still using ProTec ECM to run the EFI? ------------- Current 2003 Ski Nautique 206 Limited Previous 2001 Ski Nautique Open Bow 1994 Ski Nautique Open Bow Aqua skiing, ergo sum |
Posted By: Mikewolf
Date Posted: June-23-2020 at 4:59pm
| I’m running the tb Efi still off the pro tec ecu, but without the ignition. There was an old post about 2 years ago where I posted up the wiring diagrams, but I can’t seem to find it anymore. |
Posted By: 2001Sunsport
Date Posted: July-02-2020 at 12:33am
| Might be a dumb question, but when is your fuel from? We've had issues here in Michigan as some of us bought a bunch of gas in April, forgetting the governor allowed winter blend to be sold through April 30th... Once warm weather hit in June we were hosed for hot restarts a few hours later. High RVP + heat soak = no start |
Posted By: Gary S
Date Posted: July-02-2020 at 1:01am
Here you go- http://www.correctcraftfan.com/forum/forum_posts.asp?TID=42357&PN=1&title=keeping-your-protec-efi-with-a-dui-system" rel="nofollow - link ------------- http://www.correctcraftfan.com/diaries/details.asp?ID=1711&sort=&pagenum=1&yrstart=1966&yrend=1970" rel="nofollow - 69 Mustang HM SS 95 Nautique Super Sport |
Mikewolf wrote: