Mechanical fuel pump
 

Ive not bought one in years, what would you recommend to support 650 hp, to be driven off the sea pump

thanks

I would look into C&S. great pumps and real nice brackets

you can buy the Baker and install the diphram part onto the merc base, at least that's what I was told when I was looking, I ened up doing Dart blocks and was able to just use the pump As is..

Any bolt together style pump, you can bolt the bottom on to the merc top. I used the jegs 170gph with a Holley regulator and it has worked very well.

A holley 130 gph is all I've ever used.

Im bringing this back up, went into my local speed shop ( Star Performance ) looking for a pump, looked at the Holley 12-454-20 and told them it was going to mount kinda upside down and they said no way ?? Im ready to order two of something but dont know exactly what. Sea pump mounted

Why wont they bolt directly to the sea pump, new complete unit ?

Edit: this one ?? ...http://www.jegs.com/i/Holley/510/12-454-20/10002/-1

The merc sea pump style pumps, use a different arm than a regular bbc style pump

I should of known they'd pull something like this, thanks .....

I've just used the bottom of this pump bolted to the top of the merc pump. Seems to work just fine.

Well, I dont have the Mercury bottoms, so instead of buying four pumps to make two I think I'll put the block off plates back on and go electric

Airtex 60932 fuel pumps for the sea water mount are just $55.88 thru Amazon: Link: http://a.co/9FlecL7
Many people believe this is whom makes it for Mercruiser.

http://www.airtexproducts.com/single...932&id=98756AX

http://www.offshoreonly.com/forums/d...fuel-pump.html

You could then also get the pumps mentioned above to swap the lowers.

Just a thought.

Edit in: most parts places sell Airtex stuff also...therefore Amazon isn't the only place...I just used it for reference.
Also, I have not done this....just relaying info I've studied. When I did the bottom swap years ago, the Aitex pump was not available outside of Mercruiser.

found this one, thoughts

http://www.ebay.com/itm/CHEVY-MERCRU...RYCXGy&vxp=mtr

carter and Airtex Merc used for their stock OEM builds

Norm got your carb done today, going to make two base pulls with his 4150 monday then bolt yours on!

No arm wrestling needed ??

Bring this back up as I purchased a Airtex 60932 last year from Amazon and its leaking fuel out the back diaphragm. Not good, as it just drains in bilge and not the clear hose luckily I haven't put the hatch back on and noticed it. I'm going to try and find a Carter or Merc (I know Airtex and Carter make them from above.) I'm afraid the ones on Amazon are not as good of quality or something, as lasting only 10 months is insane.

I've had better luck with the Airtex brand pumps than those purchased through Mercury. Airtex claims that their pumps are now ethanol resistant. Airtex is also half the price of Mercury so you can have a spare on board when it does fail, and the uppers all fail, with this mounting configuration.

If you have a merc pump, you can bolt on this fuel pump upgrade. 120gph. -8 inlet/outlet


https://cimg9.ibsrv.net/gimg/www.off...d7e9a844e6.jpg



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I have 2-new Baker Fuel pumps if interested?? Dyno time only. Let me know if interested, Tim 616-260-4064 or [email protected]

I called Dennis Moore yesterday and he's well versed on the Merc OE stuff that he sales, he had listed a carter pump on his site. After speaking with him he said all that is available now is the Airtex pump and that's what Merc is using. I told him the issue I was having and he stated there is known problem with the 2 screws holding the rear diaphragm becoming loose and some new ones are not tight out of the box. Amazon is sending me a replacement Airtex and I will take it apart to check before swapping out. Dennis also said to remove the the self tap screws and through bolt with machine crews and nuts as the factory self tapping screws loosen easy. Seems like a giant liability for Airtex not addressing this issue before blowing up someones boat.