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leezilla
50cc nipper
Joined: 28 May 2007
Posts: 21
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 Posted: Sun May 18, 2008 3:38 pm Post subject: PISTON |
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| how much play should the piston have in the bore ? |
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Sponsor
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TUFF AS
Big Bore, Stroked & Bling +
Joined: 09 Jan 2007
Posts: 497
Location: sydney
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| Posted: Sun May 18, 2008 4:03 pm Post subject: |
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almost nill. what sort of bike or quad???
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07 BANSHEE 91hp atw at the moment
04 WR450F still yet to know hp |
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leezilla
50cc nipper
Joined: 28 May 2007
Posts: 21
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| Posted: Sun May 18, 2008 4:08 pm Post subject: |
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| lt500r its got about a 1mm taking it apart as we speak |
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TUFF AS
Big Bore, Stroked & Bling +
Joined: 09 Jan 2007
Posts: 497
Location: sydney
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| Posted: Sun May 18, 2008 6:07 pm Post subject: |
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its probly just due for rebuild with rebore, new piston etc...
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07 BANSHEE 91hp atw at the moment
04 WR450F still yet to know hp |
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leezilla
50cc nipper
Joined: 28 May 2007
Posts: 21
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| Posted: Sun May 18, 2008 7:03 pm Post subject: |
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| thanks |
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bansheebuzz
4fiddy Racer
Joined: 07 Aug 2007
Posts: 255
Location: Gold Coast
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| Posted: Sun May 18, 2008 10:17 pm Post subject: |
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| it depends on where the play is and what type of piston it is |
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ReD HeaderZ
Roostin Away
Joined: 24 Jul 2006
Posts: 828
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| Posted: Sun May 18, 2008 10:32 pm Post subject: It is not that simple |
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Check with the specs on the motor first....
Or check with someone who rebuilds engines.. 
No offence at all to TUFF AS, but you better check a few sources first..  |
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HSR
Blaster class
Joined: 11 Jun 2006
Posts: 122
Location: Melbourne
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| Posted: Mon May 19, 2008 11:04 am Post subject: |
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I can assure you there is not an engine made for any thing that runs " about 1 mm " of piston to bore clearence, you will need to measure both with micrometer / bore gauge to determin the correct sizes if you do not have access or confidence to use these correctley take it to an engine builder / engineer to have them measured properly, all pisto sizes are measured in points of millimeters or thousands of an inch so accuracy is vital.
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we do not stop racing because we grow old
we grow old because we stop racing |
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mex087
50cc nipper
Joined: 12 Jan 2008
Posts: 48
Location: seaham
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| Posted: Mon Jun 09, 2008 5:42 pm Post subject: |
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| normally at least 2 thou .. .05mm |
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