Mercury Mechanical Fuel Pump Modifications
#11
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My boat and motor were totally custom, I'm using a WIX 3522 filter/separator on a custom mount with -8 Stainless braided lines. After doing some pump homework, I noticed that the Merc and Carter pumps are virtually identical. I figured any difference was the diaphragm and valving.
#12
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Join Date: Mar 2010
Location: Salisbury, NC
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CV products in Mooresville NC has a billet pump to replace the Carter pump. It has way better valving and is available with differant springs for higher pressure if desired.
http://www.cvproducts.com/ProdDet.aspx?PN=SPIN-MP-2518
http://www.cvproducts.com/ProdDet.aspx?PN=SPIN-MP-2518
#13
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Location: NY
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The seawater pump mounted fuel pumps that are used on carbed HP500's, 525sc's, and 600sc's are 120gph. I can't swear to it that the same units are used on lower HP 502's and 454's. Looking back at ThisIsLivin's posts, I'm not sure what the original platform was for his build.
Brad at Nickerson Performance originally gave me that info, and I was a bit skeptical myself. After doing my own research with some folks at Mercury, they confirmed what he had told me.
Brad at Nickerson Performance originally gave me that info, and I was a bit skeptical myself. After doing my own research with some folks at Mercury, they confirmed what he had told me.
#14
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I just pulled a Carter 130GPH and Merc Pump apart and they are identical. The check valves, diaphragm, casting, everything is identical. FWIW
#15
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The seawater pump mounted fuel pumps that are used on carbed HP500's, 525sc's, and 600sc's are 120gph. I can't swear to it that the same units are used on lower HP 502's and 454's. Looking back at ThisIsLivin's posts, I'm not sure what the original platform was for his build.
Brad at Nickerson Performance originally gave me that info, and I was a bit skeptical myself. After doing my own research with some folks at Mercury, they confirmed what he had told me.
Brad at Nickerson Performance originally gave me that info, and I was a bit skeptical myself. After doing my own research with some folks at Mercury, they confirmed what he had told me.
Last edited by ROTAX454; 08-09-2011 at 11:33 AM.
#16
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CV products in Mooresville NC has a billet pump to replace the Carter pump. It has way better valving and is available with differant springs for higher pressure if desired.
http://www.cvproducts.com/ProdDet.aspx?PN=SPIN-MP-2518
http://www.cvproducts.com/ProdDet.aspx?PN=SPIN-MP-2518
http://www.cvproducts.com/ProdDet.aspx?PN=SPIN-MP-2630
Last edited by ROTAX454; 08-09-2011 at 11:35 AM.