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11-06-09, 09:39 AM
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#1
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Site Supporter
Join Date: Sep 2008
Location: The Shire
Posts: 2,860
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Lightened Flywheel issue found on another forum
Hey all,
not sure how many people here have recently got a lightend flywheel off the guy from XPF, but apparently there has been a error with them on creation..
http://forums.xpowerforums.com/showthread.php?t=49491
HTH
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11-06-09, 10:58 AM
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#2
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Founding Members
Join Date: Jul 2007
Location: St. Cloud, FL, USA
Posts: 7,671
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Interesting... I guess everything has it's flaws.
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" People in cars cause accidents. Accidents in cars cause people. Drive only with proper protection." 
" You should try one. It's bloody good" - Jeremy Clarkson (commenting after driving a ZS180) 
" Fines are a tax for doing bad, Taxes are a fine for doing good" - Unknown
GPS - Because guys don't know how to ask directions
MG ZS 180
3.5L V6 Ford Taurus
2.7L V6 EcoBoost Ford F150 4x4
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11-06-09, 11:15 AM
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#3
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Site Owner
Join Date: Jul 2007
Location: Waterlooville, Hants
Posts: 24,097
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Forgetting the locking pin hole is a major flaw! May have been just a one off that got past inspection, however if done on a CNC it would be all and not one unless the bit had broken on the last wheel to be done in that batch?
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11-06-09, 11:48 AM
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#4
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Founding Members
Join Date: Jul 2007
Location: St. Cloud, FL, USA
Posts: 7,671
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However both scenarios seem unlikely...
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" People in cars cause accidents. Accidents in cars cause people. Drive only with proper protection."
" You should try one. It's bloody good" - Jeremy Clarkson (commenting after driving a ZS180)
" Fines are a tax for doing bad, Taxes are a fine for doing good" - Unknown
GPS - Because guys don't know how to ask directions
MG ZS 180
3.5L V6 Ford Taurus
2.7L V6 EcoBoost Ford F150 4x4
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11-06-09, 12:01 PM
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#5
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Member
Join Date: Jul 2007
Posts: 1,406
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The makers of the flywheel I had made have been informed of a possible issue.Mention of PTP in the thread is confusing though.
I'll wait for confirmation before my conclusion is drawn
Shroon
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"In the MG ZS, the relationship between car and driver borders on the intimate"
"The surprise is that the MG ZS feels right straight away and stays accurate and poised"
Last edited by shroonie29; 11-06-09 at 02:16 PM.
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11-06-09, 12:07 PM
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#6
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Site Owner
Join Date: Jul 2007
Location: Waterlooville, Hants
Posts: 24,097
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Quote:
Originally Posted by arwilson80
However both scenarios seem unlikely...
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Why is that?
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11-06-09, 12:40 PM
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#7
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Founding Members
Join Date: Jul 2007
Location: St. Cloud, FL, USA
Posts: 7,671
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Quote:
Originally Posted by stamford
Why is that?
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Doesn't say much for their QA/QC inspection process IMO... Surely they'd have caught the flaw at the design or product stage.
I know from my point of view (software testing) even our test processes / cases are reviewed.
__________________
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__________________
" People in cars cause accidents. Accidents in cars cause people. Drive only with proper protection."
" You should try one. It's bloody good" - Jeremy Clarkson (commenting after driving a ZS180)
" Fines are a tax for doing bad, Taxes are a fine for doing good" - Unknown
GPS - Because guys don't know how to ask directions
MG ZS 180
3.5L V6 Ford Taurus
2.7L V6 EcoBoost Ford F150 4x4
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11-06-09, 12:55 PM
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#8
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Site Owner
Join Date: Jul 2007
Location: Waterlooville, Hants
Posts: 24,097
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Quote:
Originally Posted by arwilson80
Doesn't say much for their QA/QC inspection process IMO... Surely they'd have caught the flaw at the design or product stage.
I know from my point of view (software testing) even our test processes / cases are reviewed.
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A typical machine shop will make a pattern part as supplied with a sample. We are not talking a shop that adheres to ISO9000 standards here so things will get omitted if not studied. If such a part is made in small batches it won't always be scrutinised in detail, especially if there is no drawing to start with.
Small machine shops don't tend to have a QA dept, they are self inspected. Personally a drawing is a must and checked thoroughly before issuing. 2D derived designs always lend themselves to missing information due to working in a single plane, whereas 3D is less so due to the constraints used in the asembly files and X,Y & Z planes used to build a part or assembly.
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