Cylinder Block - Inspection (Cont'd)
EM-150spec tableConnecting rod bearing clearance standard differs between SR20DE and SR20DET.
Inspection (Cont'd)
Select main bearing
- cSelect main bearing with suitable thickness according to the following table.
How to select main bearings (Identification mark and color)
How to select main bearings (Identification mark and color) - rows by Crankshaft journal grade number, columns by Main journal grade number
0
Main journal grade number 00 (A, Black)
Main journal grade number 11 (B, Brown)
Main journal grade number 22 (C, Green)
Main journal grade number 33 (D, Yellow)
1
Main journal grade number 01 (B, Brown)
Main journal grade number 12 (C, Green)
Main journal grade number 23 (D, Yellow)
Main journal grade number 34 (E, Blue)
2
Main journal grade number 02 (C, Green)
Main journal grade number 13 (D, Yellow)
Main journal grade number 24 (E, Blue)
Main journal grade number 35 (F, Pink)
3
Main journal grade number 03 (D, Yellow)
Main journal grade number 14 (E, Blue)
Main journal grade number 25 (F, Pink)
Main journal grade number 36 (G, No color)
NOTE
For example: Main journal grade number: 1, Crankshaft journal grade number: 2, Main bearing grade number = 1 + 2 = 3 (D, Yellow)
Connecting rod bearing (Big end)
- 1Install connecting rod bearing to connecting rod and cap.
- 2Install connecting rod cap to connecting rod.Tighten bolts to the specified torque.
- 3Measure inner diameter "C" of each bearing.
SEM153B - 4Measure outer diameter "Dp" of each crankshaft pin journal.
SEM945C - 5Calculate connecting rod bearing clearance. Connecting rod bearing clearance = C - Dp
Connecting rod bearing clearance - Unit: mm (in)
Standard
SR20DE0.020 - 0.045 (0.0008 - 0.0018)
SR20DET0.030 - 0.055 (0.0012 - 0.0022)
Limit
SR20DE0.090 (0.0035)
SR20DET0.090 (0.0035)