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 Post subject: Piston Rings
PostPosted: Fri Feb 26, 2010 11:48 am 
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848cc
848cc

Joined: Fri Sep 19, 2008 9:24 pm
Posts: 198
Location: South West Rocks
Hello All.
Does it matter where the top ring gap is placed on the piston ?
Thanks.


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 Post subject:
PostPosted: Fri Feb 26, 2010 11:52 am 
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848cc
848cc
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Joined: Wed Feb 20, 2008 4:27 pm
Posts: 118
Location: perth, northern suburbs
no it doesnt but make sure you gap the rings in the block first


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PostPosted: Fri Feb 26, 2010 1:24 pm 
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848cc
848cc
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Joined: Wed Jun 10, 2009 2:42 pm
Posts: 425
Location: In the shed until Rylstone!
It is always good to keep the gap away from the exhaust valve!
IE opposite side of piston.


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 Post subject:
PostPosted: Fri Feb 26, 2010 1:32 pm 
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998cc
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Joined: Tue Apr 11, 2006 8:15 am
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Location: Brisbane
I can't wait to read some of the replys to this thread :P

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 Post subject:
PostPosted: Fri Feb 26, 2010 1:54 pm 
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Bimmer Twinky
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Joined: Mon Sep 06, 2004 4:36 pm
Posts: 8606
Location: Brisbane
hee hee,,, Dave you`re so mean :-)

it is best to keep all the gaps away from the thrust sides of the pistons, also best not to put them on the lined up with the gudgeons either,,,

diagonally is good tho, between the gudgeon pin & the thrust sides... so there are effectively 4 good spots to put them ,,, but please don`t line them all up together,,, stagger them so that none of the gaps actually line up with any of the others

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No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.


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 Post subject:
PostPosted: Fri Feb 26, 2010 6:12 pm 
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1098cc
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Joined: Tue Aug 05, 2008 8:03 pm
Posts: 1479
Location: Qld, Brisbane
Whilst on the topic, whats a general rule of thumb for piston ring gaps. Is there say a rule of so many thou per circumferance?


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 Post subject:
PostPosted: Fri Feb 26, 2010 11:58 pm 
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Bimmer Twinky
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Joined: Mon Sep 06, 2004 4:36 pm
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Location: Brisbane
min of .010" for mini bores,,, there is a """"Thou of gap per inch of boe diam""" as a rule of thrmb, but i`ve forgotten it,,, i`ve actually forgotten lots of stuff but if you have at "Least" .010" then you`ll be fine

sorry but 8 burbons & 4 beers so far makes me a tad on the tippsy side so i could say anything & ,,,be with anyone ,,, when i`m likr this :-) well,,, ok maybe not with :anyone",,, as long as they`re females then i coud be with anyone atm :-)

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No offence intended here but--> anyone writing a book about minis 30 years ago may not have experienced such worn or stuffed-with components as we are finding these days.

You should put your heart & soul into everything you do.


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