1955 Corvette: Service Bulletin: Upshift at Part Throttle


Subject:   Upshift at Part Throttle
Model and Year:   1955 6-Cylinder Powerglide
Source:  Chevrolet Technical Service Bulletin
Bulletin No:   DR - 192
Section:   VII
Date:    January 31, 1955

TO:  ALL CHEVROLET DEALERS

In cases where the 1955 6-Cylinder Powerglide Units upshift in the 25 - 28 MPH range on part throttle, and it is desirable to have the upshift at 12 - 18 MPH for best fuel economy, particularly in Metropolitan areas, a new Throttle Valve Control Outer Lever and Control Rod should be installed and linkage readjusted.

The new Control Rod and Outer Lever went into production at assembly plants during week of 1-10-55.

PARTS

Description New Part No. Old Part No.
Throttle Valve Control Outer Lever 3720325 (Change in angle) 3710634
Control Rod 3715711 (Shortened) 3710632

THROTTLE VALVE LINKAGE ADJUSTMENT



Article ID: 1110
Created On: Sat, Jan 17, 2015 at 10:54 AM
Last Updated On: Sat, Jan 17, 2015 at 10:54 AM

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