Mercruiser 496 Mag raw water pump wear

[AsLan7]

Took some pics of our Cobalt 263's raw water pump internals. Our 496 mag HO has 314 hours on it as of today according to the laptop reading.

New mercruiser pump on order. You can see the wear.


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[Big Block Power]

Did you consider a harden stainless pump?

[AsLan7]

Did you consider a harden stainless pump?

Yes.
Unfortunately in the interest of time the dealer had already ordered the Merc pump.

[dogwspts]

What kind of block pressure readings were you getting.

[AsLan7]

What kind of block pressure readings were you getting.

.
I'm not sure as I did not ask the tech that dwspts.

[dogwspts]

Thanks anyway..Oh I use to fly for food. Who were you with.

[AsLan7]

Thanks anyway..Oh I use to fly for food. Who were you with.

LUV

[ajcampen]

Thanks anyway..Oh I use to fly for food. Who were you with.

What do the guys in the merc helpline say?

[dogwspts]

Nothing special. I am getting in the high teens and later in the day it drops to 5 to 8 at 3000. Crazy at least the last few times it has not gone into limp mode. Trying to fix this myself so it dosen't set half the summer at a dealer. The one I have talked with are not sure what the deal is I replaced the block pressure sensor.

[samuri33]

A7, I found this old post wile researching my impending water pump repair!

[AsLan7]

A7, I found this old post wile researching my impending water pump repair!

Yeah buddy. It's nice peace of mind to have a new pump and impeller. Make it happen' cap'n!

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[Indy1K]

Hello,
In your first post you mentioned a laptop reading. Is there a way to connect a laptop to the 496's for data readout?

Thanks,

Kevin
2002 282 twin 496s

[Big Block Power]

Hello,
In your first post you mentioned a laptop reading. Is there a way to connect a laptop to the 496's for data readout?

Thanks,

Kevin
2002 282 twin 496s

Yes. You have to buy a cable and a disc. Depending on what software you download is not very friendly on 1 of them.



https://obd2allinone.com/mefiecms.asp

I like this option but it cost more.
https://fox-marine.com/index.php?route= ... ation_id=7

[Indy1K]

Thanks BBP,

Similar to my OBD2 software.

Kev

[Big Block Power]

Thanks BBP,

Similar to my OBD2 software.

Kev

Yes but it won't work. We tried. Matt and I tried to make a connector for it but it didn't work. They have a secrete resistance in there.
I'm sure if you really sirens the time on it you can figure it out. But buying the cable was much easier. I have the software if you get the cable.