Second ring groove width ---------------------------------------------------------------------------------------------- 0.1285-0.12756.
Third ring groove width ------------------------------------------------------------------------------------------------- 0.1285-0.1275.
Fourth ring groove width ----------------------------------------------------------------------------------------------- 0.253-0.252.
First ring land diameter ------------------------------------------------------------------------------------------------- 3.413-3.410.
Second ring land diameter--------------------------------------------------------------------------------------------- 3.413-3.410.
Third ring land diameter ------------------------------------------------------------------------------------------------ 3.41.410.
Fourth ring land diameter ---------------------------------------------------------------------------------------------- 3.413-3.410.
Fit in cylinder bore ------------------------------------------------------------------------------------------------------- 0.00 2 feeler gage,
510 lb pull.
b. Piston Rings.
(1) Plain compression.
Cylinder diameter ------------------------------------------------------------------------------------- 3.4395-3.4375.
Groove position---------------------------------------------------------------------------------------- First.
Width ----------------------------------------------------------------------------------------------------- 0.124-0.1285.
Thickness ---------------------------------------------------------------------------------------------- 0.150-0.140.
Gap clearance ----------------------------------------------------------------------------------------- 0.017-0.007.
Side clearance ----------------------------------------------------------------------------------------- 0.005-0.0035.
Weight compressed lb ------------------------------------------------------------------------------- 11 lb minimum.
(2) T. F. compression.
Cylinder diameter ------------------------------------------------------------------------------------- 3.4395-3.4375.
Groove position---------------------------------------------------------------------------------------- Second and third.
Width ----------------------------------------------------------------------------------------------------- 0.124-0.123.
Thickness ----------------------------------------------------------------------------------------------- 0.150-0.140.
Gap clearance ---------------------------------------------------------------------------------------- 0.017-0.007.
Side clearance ----------------------------------------------------------------------------------------- 0.0055.005.
Weight compressed lb ------------------------------------------------------------------------------- 12-16.
(3) Ventilated oil control.
Cylinder diameter ------------------------------------------------------------------------------------ 3.4395-3.4375.
Groove position---------------------------------------------------------------------------------------- Fourth.
Width ----------------------------------------------------------------------------------------------------- 0.2490.2485.
Thickness ----------------------------------------------------------------------------------------------- 155-0.145.
Gap clearance ---------------------------------------------------------------------------------------- 0.017-0.007.
Side clearance ----------------------------------------------------------------------------------------- 0.0045-.003.
Weight compressed lb ------------------------------------------------------------------------------- 12-16.
c. Piston Pin.
Length -------------------------------------------------------------------------------------------------------------------- 2.878-2.868.
Diameter ------------------------------------------------------------------------------------------------------------------- 0.8593-0.8591.
Diameter piston pin hole in rod --------------------------------------------------------------------------------------- 0.914-0.913.
Finished diameter pin bushing --------------------------------------------------------------------------------------- 0.8597-0.8595.
Piston pin fit in piston:
Possible --------------------------------------------------------------------------------------------------------- 0.0003-0.0001.
Desired ---------------------------------------------------------------------------------------------------------- Light push.
Piston pin clearance in bushing:
Possible --------------------------------------------------------------------------------------------------------- 0.0006-0.0002.
Desired ---------------------------------------------------------------------------------------------------------- 0.0004.
d. Valve Guide.
Length, intake ------------------------------------------------------------------------------------------------------------ 2 5/ 16.
Length, exhaust ---------------------------------------------------------------------------------------------------------- 2 5/16 .
Outside diameter, intake ----------------------------------------------------------------------------------------------- 0.657-0.65.
Outside diameter, exhaust -------------------------------------------------------------------------------------------- 0.6575-0.56, 5.
Stem hole diameter ----------------------------------------------------------------------------------------------------- 0.3432-0 .3422.
351
