225 Engine Rusted Where Waterpump Mounts, Still Leaks After Replacing, What To Do?

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edb_app

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My 225 has been leaking fluid like crazy so I took it in to a shop and have them look at it. Problem, bad waterpump. So now it's been replaced but it's still leaking. They are saying the engine is rusted/pitted where the gasket/waterpump mounts and they need to sand it down so it's flat and place another gasket to make up for the sanded down area. Does this sound right? I am a bit scared and thinking about taking it somewhere else. Please someone chime in on this issue as it's at the shop now and need to figure out if I should keep it there or go elsewhere? Thanks!
 
Where in King County are you? Anywhere near North Seattle?

What they describe is not impossible, but also not terribly likely. If it's what's going on, sanding it down and cramming in another gasket is not a good idea -- better to clean it very thoroughly with something that will eliminate the rust and etch the metal (like Naval Jelly and a wire brush), clean it thoroughly, then build up the pitted area with JB-Weld putty or PC Metal putty, level it with a straight edge while the putty is still workable, and then final-smooth it with fine sandpaper on a dead-flat sanding board. Then install the water pump as usual.
 
I live in South Seattle. I think I'll go and get my car before they mess it up anymore. Would rather have it sitting at my house until I can find someone that actually knows what they are doing. Thanks for the speedy response slantsixdan!
 
"What they describe is not impossible, but also not terribly likely." What do you think is more likely happening that's causing it to leak?
 
I deal with some pretty questionable surfaces on marine stuff. Flat file or stone. Treat like said, and permatex part 1, and let it sit overnight.
 
My 225 has been leaking fluid like crazy so I took it in to a shop and have them look at it. Problem, bad waterpump. So now it's been replaced but it's still leaking. They are saying the engine is rusted/pitted where the gasket/waterpump mounts and they need to sand it down so it's flat and place another gasket to make up for the sanded down area. Does this sound right? I am a bit scared and thinking about taking it somewhere else. Please someone chime in on this issue as it's at the shop now and need to figure out if I should keep it there or go elsewhere? Thanks!
1) That would have to be awfully bad to leak w/a new gasket.
2) If it were that bad, why did they assemble it just to watch it leak?
3) A thick skim of black RTV & a new gasket can seal almost anything, even pitting/roughness, w/o excess "squeeze out"
see 1&2 above.......................................
4) If it is that bad & needs leveled, then what SSD posted is it to correct it properly on the car.
 
My 225 has been leaking fluid like crazy so I took it in to a shop and have them look at it. Problem, bad waterpump. So now it's been replaced but it's still leaking. They are saying the engine is rusted/pitted where the gasket/waterpump mounts and they need to sand it down so it's flat and place another gasket to make up for the sanded down area. Does this sound right? I am a bit scared and thinking about taking it somewhere else. Please someone chime in on this issue as it's at the shop now and need to figure out if I should keep it there or go elsewhere? Thanks!
Big Block it!
 
Thanks everyone for their input! Unfortunately, after reading SSD post I rushed over to pick up my car from the mechanic but he had already started cleaning/grinding down the pitted areas. It was too late so I just told him to finish up what he was doing. Well, he managed to install it along with an extra gasket?! and so far there isn't any leaks. It looks a little funky but I guess it'll hold me over till this extra long rainy season dies down.

I would like to get it done properly eventually if anyone knows of someone in the Greater Seattle area. SSD makes it sound easy enough for anyone to do but I don't think I have the skills to get the surface completely straight.

No Big Blocking for me, this is my daily driver and I get enough attention as it is.
 
So he used doubled up gaskets?
No, He wants to remove the new pump, whittle down the corroded portion, then try double gasketing it. I hope not for extra$$$..............
 
Yup, and this is the final result. It's not leaking anymore so I guess I can't complain too much.

IMG_0546.JPG
 
I hope they know that the slant water pump uses 2 gaskets normally - one on each side of the steel plate. If they did, then this extra gasket is a "3rd gasket".
 
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