Help from da Pros again please
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=48478
Printed Date: November-27-2024 at 8:07am
Topic: Help from da Pros again please
Posted By: tico8787
Subject: Help from da Pros again please
Date Posted: March-29-2020 at 8:34pm
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1979 fish Nautique . Just installed gen 5 454 mercruiser. Had the gen 4 prior . Have raw water set up. I have an Eldebrock 1410 marine.I needed an electric fuel pump for the gen-5 so I went to O'Reilly's and bought a $60 pump which has two wires. Runs but I am not comfortable with it. Wired to the ignition with a fuse .. should I be using a diff pump ? |
Replies:
Posted By: KENO
Date Posted: March-29-2020 at 10:07pm
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I'd probably get one of the kits in the link below as the simplest safest way to go. It's a marine rated pump and has the low oil pressure shutoff switch too so that if the engine stops with the key still in the RUN position, the fuel pump turns off automatically on low engine oil pressure. That feature comes in especially handy in a situation like an engine fire from a fuel leak. Hopefully it's got instructions to go with it  http://centerstateengine.com/marine-parts-and-accessories/new-7.4l-marine-engine-electric-fuel-pump-kit-includes-bracket-and-hardware/" rel="nofollow - link Did your flywheel issue get resolved with a ring gear relocation? |
Posted By: tico8787
Date Posted: March-29-2020 at 10:33pm
| Flywheel handled thank you . I see link perfect . Oriellys has a Holley 712-801-1 1 in stock . Red with vent tube . Any thoughts |
Posted By: Gary S
Date Posted: March-30-2020 at 12:28am
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Pretty sure http://centerstateengine.com/marine-parts-and-accessories/new-7.4l-marine-engine-electric-fuel-pump-kit-includes-bracket-and-hardware/" rel="nofollow - this was Kens thoughts. Here's mine- "Not compatible with alcohol or methanol fuels" is stated in Holley's spec sheet. Plus the fact Ken's pump has a electric fuel shut off. ------------- 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 |
Posted By: KENO
Date Posted: March-30-2020 at 8:41am
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I'm not sure but I think the Holley works with today's gasoline mixtures but isn't compatible with race applications that use 100 percent alcohol or methanol. But like Gary said, the kit in the link has the pressure switch included. You could buy the Holley pump and the Holley pressure switch and wire things per the Holley instructions in the link below They show how to wire it with a relay in conjunction with the pressure switch. The relay helps to provide the highest voltage to the pump. Some people use it, some don't. The Center State kit doesn't but if you were so inclined and familiar with Bosch type relays you could add one pretty easily. The Holley relay kit 12-753 seems to be the most overpriced relay kit known to mankind compared to everybody else's relay kits. https://www.catalograck.com/ImgVD/HOL/712-801-1.pdf" rel="nofollow - link In the end, I think the Center State kit works and keeps the complication down when installing
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Posted By: tico8787
Date Posted: March-30-2020 at 8:52am
| I'll go with your 1st recommendation ...thanks guys |