rusty block,heads,crank - Team Camaro Tech
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post #1 of 10 (permalink) Old Feb 12th, 07, 08:45 AM Thread Starter
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rusty block,heads,crank

How much rust is too much rust befor machining cant be done? Block, crank and heads I think have never been cut.
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post #2 of 10 (permalink) Old Feb 12th, 07, 08:54 AM
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Re: rusty block,heads,crank

I'm glad you wrote this because I'm in the same situation. I had someone give me a 402 that is lightly covered with surface rust all over. It will be interesting to see the replies. I'm just guessing that it depends on whether it's surface rust or pitted. I think the lifter bores are really the only thing. Boring will take care of the cylinders. The jounals really only hold the bearings in place. I think it gets back to pitting vs surface rust that can be removed. As for the crank and heads.....that's another thing.
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post #3 of 10 (permalink) Old Feb 12th, 07, 09:24 AM
 
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Re: rusty block,heads,crank

Somebody has posted before and after pic's of a block that was rusted really bad.

It cleaned up fine using the shake & bake and then blast method.

It might be either Carl or Mike over on Team Chevelle, sorry, I forget????

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post #4 of 10 (permalink) Old Feb 12th, 07, 09:48 AM Thread Starter
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Re: rusty block,heads,crank

Whats the shake and bake method?
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post #5 of 10 (permalink) Old Feb 12th, 07, 11:12 AM
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Re: rusty block,heads,crank

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Originally Posted by gregvega View Post
Whats the shake and bake method?
Great question....that's how I do my chicken, so I'm curious what this procedure is.
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post #6 of 10 (permalink) Old Feb 12th, 07, 11:55 AM
 
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Re: rusty block,heads,crank

They bake a dirty block in a big 500/600 degree oven for several hours to burn all the crap off it, then media blast it and then tumble it, (I think), to remove all the blasting media.

Then deck, line-bore or hone, etc., etc., and it comes out looking almost like NEW!!

Much nicer looking than using the old, out of EPA's favor, the caustic hot-tank method that has always been done in the past..

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post #7 of 10 (permalink) Old Feb 12th, 07, 05:12 PM
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Re: rusty block,heads,crank

If you can, take some photos of the block, crank and heads to a local machine shop and get their opinion. You may just want to take the crank and heads if the engine is disassembled since they're not that hard to move around. Just a suggestion.
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post #8 of 10 (permalink) Old Feb 12th, 07, 05:42 PM
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Re: rusty block,heads,crank

Shake and bake, bubba. Shake and bake.
Goes together like cocaine and waffles.
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post #9 of 10 (permalink) Old Feb 12th, 07, 05:54 PM
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Re: rusty block,heads,crank

Quote:
Originally Posted by MyBoTy View Post
Shake and bake, bubba. Shake and bake.
Goes together like cocaine and waffles.
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post #10 of 10 (permalink) Old Feb 13th, 07, 08:17 AM
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Re: rusty block,heads,crank

It all depends on how deep the pits are and if it's been machines previously.
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