Ford 1961 Comet Service Specifications Handbook page 25

ENGINE
PISTON
Diameter Standard-2 Colors (Sizes)
Availoble for Service (Piston Diameter
Measured at Center of Skirt):
Color Coded .................. Red 3.4976-3.4982
Color Coded .................. Blue 3.4988-3.4994
To Cylinder Bore Clearance:
Selective Fit . . . . . . . . . . . . . . . . . . . . . . . .. .0018-.0036
Wear Limit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .005
Ring Groove Width:
Upper- Compression . . . . . . . . . . . . . . . . .. .0805-.0815
Lower-Compression ... . .............. . 0805-.0815
Oil ................................... . 188-.189
Pin Bore Diameter .................... . 9122-.9125
PISTON PIN
Diameter:
Standard ........................ .9120-.9123
Length . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3.010-3.030
To Piston Clearance-Select Fit ............ . 0001-.0003
To Connecting Rod Bore . . . . . . . . . . . . . . .. Interference Fit
PISTON RINGS
Compression Ring:
Width . . . . . . . . . . . . . . . . . . . . . . .. Upper 0.774-.0781
Lower .0770-.0780
Side Clearance . . . . . . . . . . . . . . . .. Upper .0024-.0041
Lower .0025-.0045
Gap Width-Upper
&
Lower Standard 80re .. . 010·.020
Oil Ring:
Type .................................. Segment
Side Clearance . . . . . . . . . . . . . . . . . . . . . . . . . .. . Snug
Gap Width-Rail ........... ........... . . 015-.055
C-20