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 Engine Surface Rust and Other Questions

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jesustakethewheel
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Name : kevin
Joined : 2017-04-19
Post Count : 3
Merit : 0

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PostSubject: Engine Surface Rust and Other Questions    Engine Surface Rust and Other Questions  EmptySat Oct 26, 2019 6:42 pm

Hi,

I have surface rust on the deck and block. I was wondering if anyone had any tips. Also, any tips on cleaning coolant passage channels without disassembly?

Thanks!
Engine Surface Rust and Other Questions  Rust_111
Engine Surface Rust and Other Questions  Rust_211
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albertj
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albertj

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Location : Finger Lakes of New York State
Joined : 2007-05-31
Post Count : 7833
Merit : 164

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PostSubject: Re: Engine Surface Rust and Other Questions    Engine Surface Rust and Other Questions  EmptySun Oct 27, 2019 10:22 pm

Surface rust on engine?  No, no ideas, I'll just say that people paint engines with engine paint every day with good results if they follow the rattle can label directions. For the head mounting surface you can remove the studs and clean it with a "Scotchbrite" but ask a machine shop guy about the surface flatness.  You might need to use or make a flat sanding block. For an idea see https://www.youtube.com/watch?v=oGZt6jCoIOA but don't do it the way he does, looks sloppy to me.  I Am thinking a machinist would use something dead flat and larger than the block surface, like a piece of (scrap) granite from a countertop maker, hot glue or dopp wax or epoxy handles to one side and would glue the emerycloth to the other.  Somewhere between 80 and 200 grit would be my guess BUT don't go by me, ask a machinist. You will have a problem getting the grit out of the cylinder wells.
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