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#1 |
Scooby Specialist
Member#: 191212
Join Date: Oct 2008
Chapter/Region:
MWSOC
Location: Imported to Detroit :-(
Vehicle:2007 FXT-5MT E85 20G TD06SL2 Kinugawa |
![]() Factory Service Manual calls warping limit of 0.00098" (0.025 mm), using high precision Starrett straight edge I am at 0.004" (0.1016 mm), a difference of only 0.003" (0.0767 mm)
Does 0.003" warrant for a block deck machining? The heads have being decked and are within spec. I will be using Subaru OEM MLS replacement gaskets.
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Last edited by V8 GTFO Lesbic WGN; 11-13-2013 at 11:07 AM. |
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#2 |
Scooby Specialist
Member#: 216580
Join Date: Jul 2009
Chapter/Region:
MWSOC
Location: INDY
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![]() If you want to do it right, yes. If not, no.
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#3 |
Scooby Newbie
Member#: 132023
Join Date: Nov 2006
Chapter/Region:
W. Canada
Location: Alberta Canada
Vehicle:2005 STI blue |
![]() One way to look at this is yeah it's only 0.003" out. Another perspective is it's 4x the allowable limit.
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#4 |
Scooby Specialist
Member#: 191212
Join Date: Oct 2008
Chapter/Region:
MWSOC
Location: Imported to Detroit :-(
Vehicle:2007 FXT-5MT E85 20G TD06SL2 Kinugawa |
![]() Well I want to do it right, problem is I do not trust local machinist, I am afraid the 0.003" may turn into 0.03" or worst so just trying to ascertain if I wing it or take the chance with the local red neck "V8 iron block" familiar machine shop.
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#5 |
Scooby Specialist
Member#: 194062
Join Date: Nov 2008
Chapter/Region:
MAIC
Location: Camp Hill PA
Vehicle:2003 Impreza WRX PSM |
![]() 4x the spec I would definitely want it fixed. If you have to just ship ship the block to a machine shop that knows subarus. Bare block halves really aren't very heavy I can't see shipping costing very much
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#6 |
Scooby Specialist
Member#: 212154
Join Date: May 2009
Chapter/Region:
South East
Location: fast performance tuning
Vehicle:02 billet crank pauter rods, pt5857, E85 |
![]() Maximum out is .002 allowable by most standards with deck flatness.
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#7 |
Scooby Specialist
Member#: 191212
Join Date: Oct 2008
Chapter/Region:
MWSOC
Location: Imported to Detroit :-(
Vehicle:2007 FXT-5MT E85 20G TD06SL2 Kinugawa |
![]() ^I don't follow you, I know what the spec is: Factory Service Manual calls warping limit of 0.00098"
Are you saying that a machine shop would only guarantee 0.002"? |
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#8 |
Scooby Specialist
Member#: 325461
Join Date: Jul 2012
Chapter/Region:
MWSOC
Location: Chicago
Vehicle:2003 WRX WRB Rotated 35r |
![]() Take it to a machine shop with a cnc machine that can laser it out perfectly. Will cost the same as another machine shop who cuts it a different/less technological way and your deck will be almost perfectly flat/square.
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