Paul (Notts)
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| posted on 11/12/07 at 04:54 PM |
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Sierra uprights – mushroom inserts - SVA
I have sierra uprights on the front with the top wishbone connected to a Mushroom insert that is held in place by a pinch bolt.
Do I need to drill through the upright and mushroom insert and place a bolt through for the SVA or is the above setup sufficient
Paul
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worX
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| posted on 11/12/07 at 05:20 PM |
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If I've understood your post correctly then the Pinch bolt is sufficient.
Steve
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saigonij
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| posted on 11/12/07 at 05:24 PM |
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i have heard conflicting info on this...
i have heard that you need a pinch bolt...
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robinj66
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| posted on 11/12/07 at 05:47 PM |
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I've heard that you do need the extra bolt - I just drilled and tapped an M6 thread
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Paul (Notts)
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| posted on 11/12/07 at 05:53 PM |
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I have heared conflicting stories so thats why I am asking ....
anyone passed at notts sva with just the pinch bolt?
Paul
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bonzoronnie
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 posted on 11/12/07 at 06:44 PM |
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Mushroom inserts
Although I can't provide an answer.
I have given this matter some thought as part of my Roadster project. 
Unlike the original Sierra mcpherson strut, the musroom adapter does not have a locating lug.
On the original Sierra strut the locating lug also doubles up as a secondary failsafe. The strut cannot be pulled from the hub assembly whilst the
bolt remains intact.
Obviously this is not the case with the musroom adapter. If the pinch bolt became loose ( however unlikely this may be ). The adapter will then be
free to be pulled out. 
My own view is, it would be a sound engineering practice to provide some means of failsafe.
As others have stated. The easiest way to do this is with a secondary bolt through the casting & tapped into the adaptor.
Ronnie 
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Paradoxia0
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| posted on 11/12/07 at 06:53 PM |
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Hi Paul
I got through the SVA at Notts with just the pinch bolts. I have been informed though at some test centers you will need to drill and bolt the
mushrooms in the uprights too...
Mark
There is no replacement for displacement...
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l71300cc
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| posted on 19/10/11 at 08:40 PM |
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insert dimensions
hi mate, if you give me the exact dimensions I can send you a pair through post.
Solid Aluminium that is.
regards,
Albert.
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Talon Motorsport
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| posted on 19/10/11 at 09:50 PM |
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For the 30mins it will take you to do the job of putting an M6-M8 bolt through the uprights in to the mushrooms why risk failing the IVA if thats the
only thing it fails on?
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JoelP
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| posted on 19/10/11 at 09:57 PM |
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Not sure if its Jesus or Lazarus, but either way, its a resurrection.
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40inches
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| posted on 20/10/11 at 07:29 AM |
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As with all things IVA, if in doubt, just do it! If it looks 50/50 why take the gamble?
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