Piston Dimensions for 968 Cabriolet L4-2990cc 30L DOHC
Piston: Specifications
Piston Compression Ratio / Weight
Piston Data
Compression Ratio ................................................................................................................................................................................................ 11.0 : 1
Weight ...................................................................................................................................................................... 704 ± 4 grams (24.832 ± 0.141 oz.)
Piston Weight Tolerances
Pistons and piston pins are paired in accordance with weight selection. Pistons are weighed with parts (piston pins, piston rings, snap rings).
Piston pins must always remain assighned to the corresponding piston and must not be interchanged even within one engine set. Observe allocation
during disassembly and assembly of engine mark if necessary.
If piston pins have been interchanged by mistake, reallocation must be carried out by checking the total weight.