What is the right blasting material to use for ally engines?

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Room101
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What is the right blasting material to use for ally engines?

Unread post by Room101 » Thu Jul 05, 2012 9:33 am

I just had the framework of my C70 done recently with what the blaster called ‘crushed iron’. Looked like iron filings to me. He restores military vehicles and has done motorbikes and scooters. But he told me that iron with over 100psi is too vicious for my engines.
I have two engines I'd like doing, both soft ally. What is the correct blaster / blasting material I should look for, or do you recommend a home diy solution (don’t mind diy, in fact prefer it). I’ve heard of soda blasting, is sand blasting illegal now (ref eco things)? What will be kind to my alloy blocks?
thx Stan

DAVE M2
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Re: What is the right blasting material to use for ally engines?

Unread post by DAVE M2 » Thu Jul 05, 2012 11:46 am

I'm not an expert on blasting but anything like iron will remain embedded and your bike will go orange in the rain.

Sand is bloody coarse. You get nice results from soda blasting so I hear.

I had a go at making a home made soda blaster based on the ones that you see on youtube. It was rubbish. But I have since bought a spot shot blaster from Aldi/Lidl and will try that. I bought my soda from a Chinese wholeseller as it's £5 for a huge bag.

Using sand at home would be a good way to get lung disease.

tha advantage of soda is that hot water washes all traces away.

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triumph5ta
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Re: What is the right blasting material to use for ally engines?

Unread post by triumph5ta » Thu Jul 05, 2012 3:28 pm

I am assuming you are talking about parts not a complete engine?
I would take it to someone for vapour blasting.
Although I too prefer to do things myself I feel that by the time you have built a cabinet and rigged it all up a specialist would have it done and for not much money.

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Room101
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Re: What is the right blasting material to use for ally engines?

Unread post by Room101 » Thu Jul 05, 2012 8:29 pm

I now know you are right triumph5ta, I just found Zunspecs 500 Triumph rebuild and have seen his vapour blasted head and hubs, so I will look around for vapour blasting, thanks for your advice
I will also investigate soda further – maybe that’s better for the steel frame?

The Mighty Gusset

Re: What is the right blasting material to use for ally engines?

Unread post by The Mighty Gusset » Thu Jul 05, 2012 10:38 pm

The good thing about soda blasting is that the blast medium itself shatters on impact, and any residue just washes away with water, so you've got no issues with the blast media getting in and blocking oilways etc.
If you're contemplating having a complete built engine blasted then that's the only method I'd consider using.

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johnr
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Re: What is the right blasting material to use for ally engines?

Unread post by johnr » Thu Jul 05, 2012 10:54 pm

baking soda! theres a firm at blackpool sells it in 25 kilo bags for blasting use. its great for ally cos its soluable, any left in the motor will disolve in water or oil. its very gentle on soft metal. i use it myself and its good tackle!! you can get it on ebay!

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Room101
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Re: What is the right blasting material to use for ally engines?

Unread post by Room101 » Fri Jul 06, 2012 1:33 am

Hey you guys know your stuff, thanks so much.
If I can bother you further, does anyone have any good recommendations for a fairly priced home DIY blasting setup? as it seems we can get hold of the blast media ok.

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FastFrank
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Re: What is the right blasting material to use for ally engines?

Unread post by FastFrank » Fri Jul 06, 2012 7:25 am

I would say keep your eyes and ears open for a small secondhand commercial set up.. I did and got a corker with an extractor unit for less than £100, although I had a decent compressor already (must have).

Frank
If iver tha does owt for nowt alus duit for thissen!

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Re: What is the right blasting material to use for ally engines?

Unread post by DAVE M2 » Fri Jul 06, 2012 9:58 am

I picked up a Sealy compressor and some tools for £100 (new) at an Autojumble, from a Sealy van.

It's been really handy for all sorts of jobs, not least de-gunking my OIF tank.

Once you have the compressor, as Frank says, you're more than half way there. I've seen (on the net) oil drums modified, and bespoke wooden cabinets, old cupboards etc.

When I have a go at my soda blasting, I'll use a water butt to collect the stuff and wear a face mask/visor. I don't care too much about the garden

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Iand
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Re: What is the right blasting material to use for ally engines?

Unread post by Iand » Mon Jul 09, 2012 7:55 pm

Evening all, can I use a normal spot blast gun for soda blasting?

Thanks
IanD
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Buckinghamshire, UK

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