Briggs & Stratton CE8069, 271172, 270962, 276535 Assemble, Check Ring End Gap, Check Connecting Rod

Engine Specifications. If clearance is greater than shown the piston must be replaced.

Figure 4

Check Ring End Gap

It is recommended that the entire ring set be replaced when servicing the piston and/or cylinder bore. However, the original rings can be re-used if they are not damaged and are checked as follows:

1.Clean all carbon from the rings and the cylinder bore.

2.Insert an original ring (A, Figure 5) approximately one inch down into the cylinder bore.

3.Check end gap with feeler gauge. Compare with reject dimensions listed in Section 12 - Engine Specifications. If gap of any of the rings exceeds the reject dimension, all rings should be replaced.

Figure 5

Check Connecting Rod

If the crankpin bearing (A, Figure 6) or the piston pin bearing (B) is scored, the rod must be replaced.

1.Reinstall rod cap and bolts on rod.

2.Using a dial caliper or plug gauge, measure the two bearing diameters. Compare with reject dimensions listed in Section 12 - Engine Specifications. If either bearing exceeds the reject dimensions, the rod must be replaced.

3.Remove rod bolts and rod cap. Set aside.

Figure 6

Assemble

1.Install a pin retainer into one groove in piston bore. Skip this step if piston has a shoulder stop on one side.

2.Oil the piston pin bore, connecting rod pin bore, and the pin. Insert rod into piston, then slip pin through piston and rod bores until it seats against the retainer or shoulder stop.

NOTE: The notch or arrow (A, Figure 7) on the piston and “MAG” on the rod (B) must face the same direction. When installed in engine, the notch will face the flywheel.

11

Figure 7

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