REDRESSE PORTER PALIER LOR BLOCK MOTEUR
An engine block which need a line bore is due to crankshaft failure. A badly worn crankshaft can “whip” the main bearing housings which causes distortion. A seized crankshaft (through lack of oil pressure) can cause the shell bearings to lack onto the crankshaft resulting them being forcibly rotated within their housings causing both distortion and wear.
Napco provides a precision alignment on engine block specially for main, which are serviced with the same precision results as on standard automobile engine.