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Old 04-27-2012, 08:17 AM
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Crankshaft rust

I have some very minor rusting on crank rod journals, these are more like stains than rust and it takes some imagination to actually feel any roughness and that is only in a couple of small spots. This is not a performance engine, just a daily driver, that is down for a "ring job" so all I need to do is clean these journals. My question is what grit should be used? I have some 600 grit, would that be too coarse or should I get something finer?

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Old 04-27-2012, 08:20 AM
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WD40 and steelwool, is what I would use!
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Old 04-27-2012, 09:16 AM
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I have used emory cloth before worked really well nif it's not to bad anyway. why not take it and have it polished while your in there ? Would be the best thing to do IMHO. But i have as stated cleaned them up before without any problems.



Cole
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Old 04-27-2012, 10:39 AM
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Ok I just got back in from the shop where I used the suggested steel wool and WD40 trick, worked like a charm! I think it was more just staining than anything else, the engine has very little wear on it, less than 29,000 miles, but it had sit for several years in an accident damaged vehicle and the bores had also rusted very slightly so I decided to hone them and replace the rings. The main bearing journals looked good as does the cam lobes/lifters and the only damage I could find was the piston bores and those few spots on a couple of the rod journals. A quick pass with a cylinder hone (actually just a glaze breaker) and the cylinders cleaned up just fine as did the rod journals after using the steel wool trick. I think now I can just bolt it back together and drop it back into the truck.

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Old 04-27-2012, 10:46 AM
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Good deal you did use the #0000 Steelwool right ?



Cole
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Old 04-27-2012, 12:19 PM
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Quote:
Originally Posted by eloc431962
Good deal you did use the #0000 Steelwool right ?



Cole



Yep #0000, I use steel wool for wood finishing and had several grades on hand.
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Old 04-28-2012, 08:07 AM
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crank spots

I had that problem also, looked like stains. The crank had sat for 2 years with wd 40 on it - first mistake, and the second was, touching the crank with my hands left finger prints, had the crank polished and all is good. So keep your hand off your crank!
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