Mike D'Silva Posted 10July, 2017 Report Share Posted 10July, 2017 I just had some cylinder heads and cylinders cleaned by Ben at Vapour Blasting Brisbane.. Hopefully the pictures will work here... VapourBLAST Brisbane - BBP Enterprises Pty Ltd Address: Rocklea QLD 4106 Phone: Link to comment Share on other sites More sharing options...
Raven Posted 10July, 2017 Report Share Posted 10July, 2017 They cleaned up nice mate ...............look almost brand new . Link to comment Share on other sites More sharing options...
9er Posted 10July, 2017 Report Share Posted 10July, 2017 Great result, what price for 6 heads? Link to comment Share on other sites More sharing options...
Mike D'Silva Posted 10July, 2017 Author Report Share Posted 10July, 2017 Lots! Link to comment Share on other sites More sharing options...
tazzieman Posted 11July, 2017 Report Share Posted 11July, 2017 Interesting http://www.arnoldsdesign.com/Vapor-Blasting.html#5. Link to comment Share on other sites More sharing options...
Robert930 Posted 11July, 2017 Report Share Posted 11July, 2017 Though that finish looks great, and I reckon heads may be safe-ish I would tread carefully on any grit based blastingWhat I'm referring to is what is know as silica embedding into the pores or galleries of engine parts, yes the same pores that absorb oil, oxidization and many other contaminants, to clean that off, all abrasive blasting methods use some form of grit, this grit gets into pores of cast aluminum or other hard to reach areas, and is extremely hard to remove......except when cycles of heat and vibration occur...meaning when your lovely new engine is running, the grit then goes around then engine and causes seriously accelerated wear and premature failureI'm no expert, but the 928 community knows this issue well when people try and blast their intake runners / plenums with some form of grit based blastingIt's laboriously discussed in this thread https://rennlist.com/forums/928-forum/916835-powder-coating-engine-rebuild.htmlSo not wanting to scare you, and heads 'might' be fine, however camboxes and engine cases I would not consider, just chemical cleaning only Link to comment Share on other sites More sharing options...
Mike D'Silva Posted 11July, 2017 Author Report Share Posted 11July, 2017 Totally agree with you Rob.Incidentally, the machine shop I use also use a similar cleaner to clean up the heads and components that they work on. Not sure exactly what type of media it is though... Link to comment Share on other sites More sharing options...
Cobalt_964 Posted 12July, 2017 Report Share Posted 12July, 2017 The media used is Spherical glass beads, which can be used both in wet (vapour blasting) and dry abrasive blasting. Wet abrasive blasting is favoured for the removal of carbon deposits and for other engineering "cleaning" applications (such as aerospace magnesium castings) because it is very unlikely to embed microscopic particles/ contaminants into the parent material. It has also HSE benefits as respirable dust is almost eliminated.Cheers,Dave Link to comment Share on other sites More sharing options...
Russ Posted 13July, 2017 Report Share Posted 13July, 2017 Can vouch for Ben's work, and he's a real car tragic (often at C&C in all manner of different things)Thanks Dave for the scientific explanation as well, i wondered how it worked. Link to comment Share on other sites More sharing options...
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