Briggs & Stratton MS-1055 User Manual

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CRANKSHAFT, CAMSHAFT AND BEARINGS
CHECKING CAMSHAFT
1. Measure camshaft lobe height, Fig. 11. If lobes are
not to specification, replace the camshaft.
Intake and Exhaust:
STD: 30.065-30.135 mm (1.184-1.186”)
Reject: 29.965 mm (1.18”)
Fig. 11 – Checking Camshaft Lobes
2. Measure camshaft journals, Fig. 12.
STD: Front – 35.959-35.975 mm
(1.4157-1.4163”)
Reject: 35.890 mm (1.413”)
STD: Center – 35.910-35.955 mm
(1.4138-1.4155”)
Reject: 35.84 mm (1.411”)
STD: Rear – 35.910-35.955 mm
(1.4138-1.4155”)
Reject: 35.84 mm (1.411”)
Fig. 12 – Checking Camshaft Journals
3. Measure camshaft run-out, Fig. 13.
Maximum Run-out: 0.03 mm (0.0012”).
a. If run-out exceeds specification shown, the
camshaft must be replaced.
Fig. 13 – Checking Run-out

Briggs & Stratton MS-1055 Specifications

General

Brand	Briggs & Stratton
Model	MS-1055
Category	Engine
Language	English