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mr911er
Joined: 29 Jan 2013 Posts: 31 Location: Redditch
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Posted: Fri Feb 12, 2016 6:30 pm Post subject: shotblasting question |
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Hi everyone
I want to clean up the engine a bit on my 1982 Porsche 911. I had a problem with the alternator recently, and have had to remove the fan and cowling, which I want to clean up, and maybe powder coat the fan.
They need blasting, but I have seen a few reports about shotblasting being too harsh - the parts are made of magnesium. No-one that I want to use seems to do beadblasting locally, so shotblasting will probably have o do.
Is it too harsh? Be interested to hear any comments
Thanks
Kevin |
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Rick Site Admin
Joined: 27 Apr 2005 Posts: 22449 Location: UK
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mr911er
Joined: 29 Jan 2013 Posts: 31 Location: Redditch
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Posted: Sat Feb 13, 2016 10:40 am Post subject: Pic |
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[img]
Let's see if this works lol
Regards
Kevin[/img] |
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mr911er
Joined: 29 Jan 2013 Posts: 31 Location: Redditch
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Posted: Sat Feb 13, 2016 10:40 am Post subject: Pic |
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[img]
Let's see if this works lol
Regards
Kevin[/img] |
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alanb
Joined: 10 Sep 2012 Posts: 516 Location: Berkshire.
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Posted: Sat Feb 13, 2016 6:29 pm Post subject: |
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Try Aqua blasting it ideal for alloys, brass, copper, & aluminium, or more delicate items. _________________ old tourer
Morris 8 two seater |
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D4B
Joined: 28 Dec 2010 Posts: 2083 Location: Hampshire UK
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Posted: Sat Feb 13, 2016 8:16 pm Post subject: |
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I would be tempted to brush on and agitate some alloy wheel cleaner,
then jet wash it off within 5 mins, see how that goes first...... ? |
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mr911er
Joined: 29 Jan 2013 Posts: 31 Location: Redditch
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Posted: Mon Feb 15, 2016 10:21 pm Post subject: |
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Aqua blasting or bead blasting may be the answer
Be amazed if alloy wheel cleaner will touch it, quite a lot of crap build up....
Anyone know does it? In north worcs
Cheers
k |
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MikeEdwards
Joined: 25 May 2011 Posts: 2472 Location: South Cheshire
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Posted: Tue Feb 16, 2016 11:49 am Post subject: |
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Have you tried having a look on the restoration section on DDK? Lots of people restoring similar stuff, the parts they put back on always seem to be very nice and shiny. |
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mr911er
Joined: 29 Jan 2013 Posts: 31 Location: Redditch
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Posted: Thu Feb 18, 2016 7:38 am Post subject: |
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MikeEdwards wrote: | Have you tried having a look on the restoration section on DDK? Lots of people restoring similar stuff, the parts they put back on always seem to be very nice and shiny. |
Excuse my ignorance lol, but what is DDK?!!
Kevin |
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MikeEdwards
Joined: 25 May 2011 Posts: 2472 Location: South Cheshire
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Posted: Thu Feb 18, 2016 11:12 am Post subject: |
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Porsche restoration forum - Die Deutschen Klassiker - http://www.ddk-online.com/phpBB2/index.php - aim for the "technical" section and the restoration threads in there. |
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alanb
Joined: 10 Sep 2012 Posts: 516 Location: Berkshire.
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Posted: Thu Feb 18, 2016 1:24 pm Post subject: |
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found this on the web.
Metal Polishing in Amblecote, Stourbridge, Black Country,
www.imperialmetalpolishing.co.uk _________________ old tourer
Morris 8 two seater |
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mr911er
Joined: 29 Jan 2013 Posts: 31 Location: Redditch
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Posted: Sat Feb 27, 2016 5:42 pm Post subject: |
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Thanks Alan's
Did phone them. Left a message, but they couldn't be bothered to reply.
In the end I took it to Worcestershire powder. Oating in pershore. The know someone who could repair the fan too, so waiting for its return know.
Cheers Kevin... |
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greenbeam
Joined: 10 Jun 2015 Posts: 85 Location: Adelaide, Australia
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Posted: Wed Mar 02, 2016 7:53 am Post subject: |
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I have just soda blasted some items myself and had very good results.
Small blasting units are available from fleaBay that hook up to a compressor, you fill them with sodium bicarbonate (bicarb - available in 10-20kg bags from butcher suppliers) and the stream of soda will remove paint, grease gunge, but will not remove metal (rusted or otherwise). Alloy carby bodies come up a treat, so your mag items should too.
The bicarb doesn't contain silicon, so can be done outdoors with simple dust mask, and hosing the area down dissolves the bicarb.
There is a bit of info on the web, but don't pay big $$ for a kit, the cheap ones are fine for infrequent home use. I bought mine for one job and have used it a couple of times since.
Regards,
Paul. _________________ 1963 Sunbeam Alpine Series 3
1935 Armstrong Siddeley 17HP Sports Saloon
1935 Armstrong Siddeley 17HP Coachbuilt Saloon |
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