The oil ring expander size is critical & predetermined.
Do not cut it, do not bend the ends & do not overlap the ends.
The ends MUST butt together & can face either up or down.
The oil rails must be staggered from the expander ends.
The compression rings are another matter & must be fitted the correct way up.
The procedure is explained in the workshop manual.
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Remember that Assumption is the mother of all f**k-ups.
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