Connecting rod bolt nut
Connecting rod cap
Front main bearing cap
Connecting rod bolt
Front main bearing cap screw
Crankshaft oil hole
Main bearing cap screw
Oil pump mounting stud
Intermediate main bearing cap
Oil pump mounting hole
Oil pan mounting hole
Figure 83. Connecting rod cap removal.
(4) Remove the piston.
(5) Check the piston ring gap with a feeler gage. If the piston ring gap exceeds 0.017 inch, replace the piston
(6) If the piston ring gap is less than 0.007 inch, file the ends of the piston ring with a flat file until the correct
clearance is obtained. A fairly wide gap near the top limit is less detrimental to engine performance than an
excessively tight fit.
g. Piston Ring Groove Clearance.
(1) Check the piston ring groove clearance when replacing rings on pistons which have been in service. The
correct piston ring groove clearance for this engine is 0.0015 to 0.002 inch.
(2) Install the piston ring on the piston and attempt to slide the feeler gage in the groove between the piston ring
and piston land.