Piston diameter (Standard)
87.465-87.495 mm {3.4435-3.4446 in}
Piston-to-cylinder clearance (Standard)
0.025-0.045 mm {0.0010-0.0017 in}
Piston-to-cylinder clearance (Maximum)
0.11 mm {0.0043 in}
Piston ring-to-ring groove clearance (Standard)
Top: 0.03-0.08 mm {0.0012-0.0031 in}
Second: 0.03-0.07 mm {0.0012-0.0027 in}
Oil: 0.03-0.07 mm {0.0012-0.0027 in}
Piston ring-to-ring groove clearance (Maximum)
Top: 0.17 mm {0.0067 in}
Second, Oil: 0.15 mm {0.0059 in}
Piston end gap (Standard)
Top: 0.16-0.31 mm {0.0063-0.0122 in}
Second: 0.33-0.48 mm {0.0130-0.0189 in}
Oil (rail): 0.20-0.70 mm {0.0079-0.0275 in}
Piston end gap (Maximum)
1.0 mm {0.0393 in}
Crankshaft end play (Standard)
0.22-0.45 mm {0.0087-0.0177 in}
Crankshaft end play (Maximum)
0.55 mm {0.0216 in}
Crankshaft runout (Maximum)
0.05 mm {0.0019 in}
Main journal bearing size
STD: 51.980-52.000 mm {2.0464-2.0472 in}
US0.25: 51.730-51.750 mm {2.0366-2.0373 in}
Main journal out of round (Maximum)
0.05 mm {0.0019 in}
Crank pin journal diameter [LF]
STD: 46.980-47.000 mm {1.8497-1.8503 in}
US0.25: 46.730-46.750 mm {1.8398-1.8405 in}
Crank pin journal diameter [L3]
STD: 49.980-50.000 mm {1.9677-1.9685 in}
US0.25: 49.730-49.750 mm {1.9579-1.9586 in}
Crank pin out of round (Maximum)
0.05 mm {0.0019 in}
Main journal oil clearance (Standard)
0.019-0.035 mm {0.0007-0.0013 in}
Main journal oil clearance (Maximum)
0.10 mm {0.0039 in}
Main bearing size
STD: 2.506-2.509 mm {0.0987-0.0988 in}
OS0.25: 2.628-2.634 mm {0.1034-0.1037 in}
Connecting rod side clearance (Standard)
0.14-0.36 mm {0.0056-0.0141 in}
Connecting rod side clearance (Maximum)
0.435 mm {0.0172 in}
Connecting rod bearing oil clearance (Standard)
0.026-0.052 mm {0.0011-0.0020 in}
Connecting rod bearing oil clearance (Maximum)
0.1 mm {0.0039 in}
Connecting rod bearing size [LF]
STD: 1.498-1.504 mm {0.0589-0.0592 in}
OS0.25: 1.623-1.629 mm {0.0639-0.0641 in}
Connecting rod bearing size [L3]
STD: 1.496-1.502 mm {0.0589-0.0591 in}
OS0.25: 1.621-1.627 mm {0.0639-0.0641 in}
Bolt length (mm {in})
Cylinder head bolt (With washer)
Standard: 149.2-149.8 {5.87-5.90}
Maximum: 150.5 {5.91}
Cylinder head bolt (Without washer)
Standard: 145.2-145.8 {5.72-5.74}
Maximum: 146.5 {5.77}
Connecting rod bolt
Standard: 44.7-45.3 {1.75-1.78}
2007 Mazda MX-5 Miata Sport
2006-08 ENGINE Mechanical - Overhaul - 2.0L (LF) & 2.3L (L3) - Mazda6 & MX-5 Miata
Microsoft
Thursday, July 09, 2009 2:43:26 PM
Page 119
© 2005 Mitchell Repair Information Company, LLC.
