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  4. Service Bulletin – 3-6 Cylinder Head Gaskets, Model 350-351

Service Bulletin – 3-6 Cylinder Head Gaskets, Model 350-351

Service Bulletin - 3-6 Cylinder Head Gaskets, Model 350-351 - Vintage Indian Motorcycle Parts &Amp; Accessories

SUBJECT: CYLINDER HEAD GASKET’S, M0DEL 350-351

When installing new cylinder head gaskets on the Model 350 and 351 Chief, the gasket should be checked to be sure that the edge does not project beyond the machined section of the head at the corner near the center bolt.

The gasket should be trimmed as shown in the sketch so that it follows the contour of the recess in the cylinder head. The gasket projecting beyond the edge of the head into the combustion chamber may cause detonation or pre-ignition.

Stuart E. Watson
Service Manager

Service Bulletin - 3-6 Cylinder Head Gaskets, Model 350-351 - Vintage Indian Motorcycle Parts &Amp; Accessories
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