496 raw water pump scoring?
 

This is a new to me boat and not knowing the exact history of it decided to replace the impellor. Little did I know how much of a pain in ass this was, feel like I took half the boat apart to get there. The impeller actually looks to be in good shape, however I think the housing has the dreaded scoring. What are my options now? Replace with a stainless kit for $500, or is there a decent repair it that is worth it? Hate to send the money for a new one, but also with as much as this is a pain in thr butt I don't want to be redoing it again right away.
https://cimg0.ibsrv.net/gimg/www.off...42799f4c4f.png

Here, i spelled it all out to cheaply use merc’s repair parts but you have to join that forum to see.

Boatfreaks

Bdbwtie,

Yup. That’s what mine looked like. Only my impeller had one foot in the grave.


https://cimg3.ibsrv.net/gimg/www.off...998a6a55b.jpeg

I ended up putting a complete new Merc pump on mine. Cost me a grand, P&L, to have it done, because I didn’t want to stand on my head to do it.

Thanks. Brad.

Merc makes wear plates and an impellar to match those plates. See my link. Cheap and effective.

Ok, but who is reggie and whats his last name?

SB,

Could you be troubled to copy and paste?

Thanks. Brad.

Nope.
It is over a page or so. Not one post.
Thus why i haven’t copied and pasted. Not that easy.

i spent way much more time/effort at the time to come up with that info, so if someone can’t spend a few minutes to gain access to it, oh well. Their laziness, not mine. :thumbs

Me comprendo ? :wink

Ps: i know you aren’t lazy. You help peeps too. Just every time i post the link to help, i get same response. Doh.

uh, probably Reggie Fountain?

its over a page to post the mercruiser parts?

says that is incorrect

Thanks for the Boatfreaks link.

Worked for me.

.
))

Has anyone done away with the rear air purge side of the pump all together? Say would 862776a02 be a direct bolt on, I would assume pickup and discharge lines would need to be lengthened. I dont see myself ever using the air pump or is there a better option if replacing the rear half is needed due to scoring?

This is EXACTLY what I did. I went to the plastic backing plate and got rid of the leaking actuators. Saved a bunch of weight too. Yes, the hoses are a little short, but I managed to pull them on to the back of the housing with a little force and some play in the hoses.

Also, you may want to get the 862776A01 part as it does not have the pressure sender port (which you don't need). Otherwise the A02 part will need a brass plug to close that opening.

Would be even better if the hoses reach, mine are already pretty taught so I dbt mine would. What did you do with the air line? Cap them or just leave them.

I just left the air lines in place.