Ford 1961 Comet Service Specifications Handbook page 86

ENGINE
PISTON RING-COMPRESSION
Width Top:
223 . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 0.0929-0.0936
292 ....................... . ..... 0.0775-0.0780
352
and
390 . . . . . . . . . . . . . . . . . . . .. 0.0774-0.0781
Width Bottom:
292 . .. ........... . ............. .
0.0770·0.0780
223, 352
and
390 ................. 0.0930-0.0940
Side Clearance- Top:
223
and
292 . . . . . . . . . . . . . . . . . . . . . . .. 0.010·0.020
352
and
390 . . . . . . . . . . . . . . . . . . . . . . .. 0.015-0.025
Side Clearance-Bottom:
223 . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 0.0015-0.0035
292, 352
and
390 . . . . . . . . . . . . . . .. 0.0020-0.0040
Side Clearance-Wear limit:
All Engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..
0.006
Gap Width-Top and Bottom:
223
and
292 .. . . .. ............. . .... 0 .010-0.020
352
and
390 . . ..... . . .......... ..... 0.015-0.025
PISTON RING-Oil
Side Clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. Snug
Gap Width-Rail-Standard Bore:
All Engines . . . . . . . . . . . . . . . . . . . . . . . . ..
0.015-0.055
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