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On older ISX CM570/CM870, the final step may be +60 degrees instead of 90. Check your engine serial number.
Ensure the alpha codes or serial numbers stamped on the rod and cap match, and that they are installed on the correct side (usually the exhaust side) as indicated by technical manuals.
When tightening the main and rod bearings, there are several special considerations to keep in mind:
Main bearing cap tightening sequence:
On older ISX CM570/CM870, the final step may be +60 degrees instead of 90. Check your engine serial number.
Ensure the alpha codes or serial numbers stamped on the rod and cap match, and that they are installed on the correct side (usually the exhaust side) as indicated by technical manuals.
When tightening the main and rod bearings, there are several special considerations to keep in mind:
Main bearing cap tightening sequence:
