- before upper dead center
- (BUDC) As the crankshaft rotates, it pushes the piston up to a place just before the top of its movement.
Dictionary of automotive terms. 2015.
before upper dead center
Look at other dictionaries:
upper dead center — See before upper dead center top dead center … Dictionary of automotive terms
dead center — The point at which the piston reaches its uppermost or lowermost position in the cylinder the rod crankjournal would be at 11 o clock UDC or 6 o clock LDC. Also see after bottom dead center after top dead center before bottom dead center before… … Dictionary of automotive terms
center — To place something in a central place in relation to other items. Also see after bottom dead center after top dead center before bottom dead center before top dead center before upper dead center bottom dead center dead center diagnostic center … Dictionary of automotive terms
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