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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Blasting crankcases
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<blockquote data-quote="Simon Dinsdale" data-source="post: 104608" data-attributes="member: 58"><p>As these crankcases are a bit worst than a bit of oil stain and have some serious surface corrosion in places (but not eaten into the metalwork), my plan is:</p><p></p><p>Remove every item to leave just the cases absolutely bare, inc cylinder studs, spindles, oil pump sleeve, oil way blanking screws etc.</p><p>Clean / degrease with engine degreaser & power washer.</p><p>Remove gasket sealant from bottom of each hole</p><p>Vapour blast the cases, heads etc at a local company.</p><p>Keep cleaning away glass bead residue with power washer, compressed air , small pipe cleaners for oilways and keep going until I'm 100% sure every last bead has been removed.</p><p>Then and only then, start the rebuild.</p><p></p><p>As for using spint stripper etc, have you tried using what is described as paint stripper in the UK now? All the active chemicals have been banned and removed so what is sold as paint stripper today should really be prosecuted under the trade description act.</p><p></p><p>Simon</p></blockquote><p></p>
[QUOTE="Simon Dinsdale, post: 104608, member: 58"] As these crankcases are a bit worst than a bit of oil stain and have some serious surface corrosion in places (but not eaten into the metalwork), my plan is: Remove every item to leave just the cases absolutely bare, inc cylinder studs, spindles, oil pump sleeve, oil way blanking screws etc. Clean / degrease with engine degreaser & power washer. Remove gasket sealant from bottom of each hole Vapour blast the cases, heads etc at a local company. Keep cleaning away glass bead residue with power washer, compressed air , small pipe cleaners for oilways and keep going until I'm 100% sure every last bead has been removed. Then and only then, start the rebuild. As for using spint stripper etc, have you tried using what is described as paint stripper in the UK now? All the active chemicals have been banned and removed so what is sold as paint stripper today should really be prosecuted under the trade description act. Simon [/QUOTE]
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Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Blasting crankcases
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