DanB Posted January 22, 2004 Share Posted January 22, 2004 Let's try again on the right forum - After my shunt at Mallory I suspect I ought to get my Barnby Mag wheels crack tested before I use them again. I gather than MBE test them by shot-blasting the powder-coating off the mag centres and then using penetrative dye to test for cracks. Does anyone know how much they charge for this service? The alternative is X-ray testing, which would have the advantage I suppose that I wouldn't have to remove the tyres from the wheels. Does anyone know somewhere (preferably in the SE of England) that offers this service and again how much they charge for it? Thanks Dan Link to comment Share on other sites More sharing options...
ECR Posted January 22, 2004 Share Posted January 22, 2004 You can buy your own dye penetrant test kit (not very expensive £30.00 ish ??) and with care check your own wheels.I think Buck and Hickman are currently running a promotion on a diy kit Link to comment Share on other sites More sharing options...
DanB Posted January 22, 2004 Author Share Posted January 22, 2004 I have almost-free access to dozens of cans of penetrating dye stuff. The problem is that penetrating dye is pish all use since the magnesium's safely ensconsed under a thick layer of powdercoat. The chances of the relatively flexible powdercoat cracking is nix, the chances of the magnesium centres cracking is slightly higher. All using penetrative dye on them in their current state would show me is whether or not the powdercoat's cracked, which isn't going to help. That's why MBE shotblast the powdercoat off and then re-powdercoat them. Not really the kind of thing I'd like to try at home... Thanks for the thought though. Dan p.s. Is it really the case that no-one's had their Barnby Mags X-ray tested? Link to comment Share on other sites More sharing options...
tom7 Posted January 22, 2004 Share Posted January 22, 2004 Why not talk to Caterham Motorsport (Aryliam???) about where or how they got theirs done. Link to comment Share on other sites More sharing options...
dino ferrana Posted January 22, 2004 Share Posted January 22, 2004 I don't think Aryliam are anything to do with the official Caterham Motorsport. They are a race team though. The race wheels don't tend to be powerdercoated anyway! Link to comment Share on other sites More sharing options...
Nifty Posted January 22, 2004 Share Posted January 22, 2004 My ex-BMS Motorsport ones aren't powdercoated...though they may be shortly. *thumbup* Keep off the straight and narrow 😬 Link to comment Share on other sites More sharing options...
MikeE Posted January 23, 2004 Share Posted January 23, 2004 The race wheels don't tend to be powerdercoated anyway! and the rims aren't anadised either, as I know to my cost, winter salt corrodes them within minutes Link to comment Share on other sites More sharing options...
Nifty Posted January 23, 2004 Share Posted January 23, 2004 Yup, me too Mike Keep off the straight and narrow 😬 Link to comment Share on other sites More sharing options...
STEVE GILBERT Posted January 24, 2004 Share Posted January 24, 2004 Coltec Racing Engines (formally Holbay) will Crack Test. Richard Coles is the owner and the rates are always pleasingly reasonable. We just used them for all our X flow machining work, which came in under estimate. Tel 01473 738738 Just outside Ipswich. HTH Steve See My Old Zetec Power 7 Here. Caterham Fireblade update soon Link to comment Share on other sites More sharing options...
DanB Posted January 29, 2004 Author Share Posted January 29, 2004 Thanks Steve, I'll give them a try. Anyone else got any suggestions? Dan Link to comment Share on other sites More sharing options...
R2D2 Posted January 29, 2004 Share Posted January 29, 2004 Bodycote, they have several good quality labs around the country and tend to be CAA and FAA Approved. Link to comment Share on other sites More sharing options...
AMMO Posted January 29, 2004 Share Posted January 29, 2004 I used to use some pretty lightweight magnesium wheels on my race bike. I got them non-destructive tested by a company called Capital Inspection in Staines. Don't know if they are still there. Try directory enquiries. They used to test all the Enkai wheels for McLaren. They should be ablre to recommend the best solution if they are still in business. AMMO Link to comment Share on other sites More sharing options...
ChrisG Posted January 29, 2004 Share Posted January 29, 2004 Dan, I reckon the cheapest way would be to find a mate with a shot blaster to get rid of the powdercoat, then do the crack test yourself and then get them re-powdercoated for about £20-30 Link to comment Share on other sites More sharing options...
DanB Posted January 29, 2004 Author Share Posted January 29, 2004 Chris, The problem is that that process requires dismantling the wheels and separating the centres from the rims. If I can avoid that I'd prefer it... Thanks for the other suggestions chaps. Dan Link to comment Share on other sites More sharing options...
ChrisG Posted January 29, 2004 Share Posted January 29, 2004 Good point, tho whoever you take it to is gonna dismantle them in order to get rid of the powdercoat arent they? Id imagine they will all use the same type of dye process, wont have the facilities to x-ray them I wouldnt think Link to comment Share on other sites More sharing options...
AMMO Posted January 29, 2004 Share Posted January 29, 2004 Capital Inspection X-rayed my wheels. I Googled them. They are in Slough. Tel. 01753 684896. AMMO Link to comment Share on other sites More sharing options...
Gridgway Posted January 29, 2004 Share Posted January 29, 2004 how much do they charge Ammo? Tks Graham Link to comment Share on other sites More sharing options...
AMMO Posted January 29, 2004 Share Posted January 29, 2004 Dunno. It was about eight years ago I had any dealings with them. Give them a call and see what they say. Don't screw with things that might compromise your safety. Price is not an issue. AMMO Link to comment Share on other sites More sharing options...
R2D2 Posted January 30, 2004 Share Posted January 30, 2004 Don't X-Ray them unless you are looking for porosity. X rays won't find the small surface cracks that are the real problem and will lead to a fatigue failure. The dye penetrants that are commonly available from RS aren't too bad but they are not as revealing as some of the dyes used by commercial test houses. Link to comment Share on other sites More sharing options...
ChrisG Posted January 30, 2004 Share Posted January 30, 2004 I agree Chris, X-Ray probably isnt the way forward if they are small surface cracks you are looking for. I worked for a year in a casting foundry making gas turbine / jet engine blades in Devon whilst at uni, and ISTR that porosity was the only real thing you could see on the X-Rays, and various dye penetration tests were also done to find cracks. Link to comment Share on other sites More sharing options...
Badger Bill Posted January 30, 2004 Share Posted January 30, 2004 AMMO, were they Enkei wheels for Maclaren, not Enkai. If so, I might know someone who works there. BB Link to comment Share on other sites More sharing options...
Paul D Jones Posted January 30, 2004 Share Posted January 30, 2004 Right I have had a chat with SPI in Imingham and they recomend a "Flouresent test" for this the wheel idealy needs stripping down and the powder coating removing the cost would be around £20 per wheel done on their site in Imingham There Phone number is 01469 575728. Or he also recomended C.T.Meadway ndt near London [owners son races bikes] Paul. See My Car Here Link to comment Share on other sites More sharing options...
AMMO Posted January 30, 2004 Share Posted January 30, 2004 BB Enkei. I stand corrected. It was a few years ago! AMMO Link to comment Share on other sites More sharing options...
Badger Bill Posted January 30, 2004 Share Posted January 30, 2004 I deal with them almost daily. I wonder if they have anything special on offer in 13" with ford pcd's Happy days! 😬 BB Link to comment Share on other sites More sharing options...
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