Clevite MPG1 Green Plastigage .001-.003 Bearing Clearance Gauge

The Clevite MPG1 Green Plastigage is a precision bearing clearance measurement tool designed for engine assembly and rebuilding. This specialized gauge material allows mechanics to verify oil clearance between crankshaft journals and bearings during final reassembly.

Key Features:

• Measures clearances from .001 to .003 inches (.025 to .076 mm)
• Green color-coded for easy identification of measurement range
• Crushable plastic material provides accurate clearance readings
• Essential tool for verifying proper bearing oil clearance
• Designed for use on crankshaft journals, connecting rods, and main bearings
• Simple to use: place material between surfaces, torque to spec, then measure crushed width

How It Works:

Plastigage is placed between the bearing surface and journal, then the cap is torqued to specification. The material crushes proportionally to the clearance. After removal, the flattened width is measured against the included scale on the package to determine the precise oil clearance. This provides a final verification of total vertical clearance during engine reassembly.

Important Note:

Plastigage is designed as a final verification check and does not replace proper measurement of crankshaft journals, housing bores, and bearing dimensions using precision micrometers and gauges before engine assembly. Always perform thorough measurements during the preparation phase of your engine build.