Okay so I got a vitos 240 cylinder and head, Its pretty rough and since im sandblasting my frame, canm i sandblast my cylinder and head???like on the inside too. It needs a new sleeve anyway, but will it mes up the head
You can do the head too but keep your pressure lower than usual. I do every motor i tear apart with sand and alluminum oxide which is real abrasive but it does great if you cut back a tad on pressure. I also polish parts i blast with awsome results.
I've blasted anything and everything for years including 3 bikes. I always blast before paint and powdercoat.
I use '000' grade sand which is next to the finest grade you can get and I run it out @ 100psi.
When I blast a jug it always needs a new bore so I blast it inside and outside.
I've done 7 different ones like this. I've never seen any drawbacks. The fine grade sand doesn't leave pock marks in the aluminum.
In fact it's almost like a clean up port.
If you plan on doin this make sure every single grain of sand is out of the inside. Use compressed air and bang the jug around a lil on some wood to jar the hidden sand loose.
Always wear a mask with sand, silicosis is real and irreversible.
I'm no expert. I always wear a mask.
I would say yes, you can only get silicosis from silica which is sand. That doesn't mean using other blasting media won't F you up.
The state of California basically says everything except pure O2 causes cancer.
I'm of the opinion that obviously breathing anything other then the natural air is gonna be worse then air. Wear a mask please B)
The el cheapo mass home improvement market masks are OK here.
The cheap Home Depot/Lowes ones are good enough for the guys just trying to do their bikes.
Yeah Im just not messing with it anymore, It says WARNING do not use silica sand, it has been known to cause many lung diseases. It was cheap I guess lol
If you want to go all out buy the N95 mask with a the exhaust vent diaphragm built in. This works as good as any other but also makes you alot more comfortable.
I had a good friend, Randy Hollett, who died of silicosis.
He worked as a rock cutter in his late teens and early 20s.
It was slow and terrible way to go gents, slowly suffocating.
I would avoid the head surface with sand if you could. Too rough.
Baking soda works well, and I am told salt but haven't tried it.
These heads below are blasted with a fine abrasive to give a smooth but matt finish.