Has anyone ran the 4S SS impeller in a 2S

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redrum
Posts: 156
Joined: 06 Jul 2014, 09:31

Has anyone ran the 4S SS impeller in a 2S

Post by redrum » 08 May 2017, 10:07

LarryMc wrote:If redrum wants to go to the trouble to do it, a sure way to determine if he has a 4S impeller is to drop the impeller down into the liner and measure the distance down from the top of the liner to where the trailing edge touches the inside of the liner. A 2S impeller's trailing edges will be almost even with the top of the liner. A 4S impeller's trailing edges will touch the inside of the liner approximately 1" down from the top of the liner.
I had to take my pump off and remembered to compare the two impellers as Larry described. As you can see in the included picture. The SS impeller on the left sits down much further into the impeller than the 2S aluminum one on the right.
Attachments
4S-2S.JPG
1860 SeaArk MV Mercury 60/40 Jet
1648 Tracker Grizzly Mercury 60/45 Jet
1648 MonArk 50/35 Evinrude Jet
1444 Polarkraft 50/35 Evinrude Jet (Stick Steer)

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redrum
Posts: 156
Joined: 06 Jul 2014, 09:31

Has anyone ran the 4S SS impeller in a 2S

Post by redrum » 26 May 2019, 06:58

Look what I've got! I bought another boat with a 2002 Mercury 60/40 jet. It has the Mercury 2 stroke stainless 3 blade impeller. I'm still running the 4S stainless 3 blade. I may do a parking lot swap comparison after the holiday weekend.
IMG_3532.JPG
IMG_3533.JPG
IMG_3534.JPG
IMG_3535.JPG
1860 SeaArk MV Mercury 60/40 Jet
1648 Tracker Grizzly Mercury 60/45 Jet
1648 MonArk 50/35 Evinrude Jet
1444 Polarkraft 50/35 Evinrude Jet (Stick Steer)

User avatar
handyandy
Posts: 548
Joined: 02 Jun 2015, 09:56
Location: Bedford Indiana

Has anyone ran the 4S SS impeller in a 2S

Post by handyandy » 10 Jun 2019, 15:47

nice hopefully it isn't too wore out. I still have my old wore out one that I welded on sitting on my work bench, haven't gotten around still to trying figure out a good way to turn it back down.

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