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Dirt Bike Brands - Other
CRF 450R Water Pump leak
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[QUOTE="Rich Rohrich, post: 1262778, member: 16241"] Clean the head surface completely of any gasket material and sealer, then clean it with acetone (or something similar) till it's spotless. Next, take a sharpie and paint the sealing surface of the head black (machinist's dye will work for this to). Then follow the procedure above using a dry, full sheet of 400-600 sandpaper. It won't take off any real material but it will make the high spots shine and the low spots will not be touched and stay black. You can do the same thing to the top of the barrel if you pull it off the bottom end. You could also check for flatness with a feeler gage and a machinist's straight edge, but the glass plate and sand paper method is more reliable in my opinion. [/QUOTE]
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Dirt Bike Discussions By Brand
Dirt Bike Brands - Other
CRF 450R Water Pump leak
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