A number of 1951 Buick Hydraulic Valve Lifters Special Tools have been developed for the removal, disassembly, cleaning, inspection and testing of Hydraulic Valve Lifters. These tools are available in kit form or individually through Kent-Moore Organization, Inc., General Motors Building, Detroit 2, Michigan. 1951 Buick Hydraulic Valve Lifter Tool Kit J-4877 Figure [...]
Before removing the side cover to remove any noisy lifters, run the engine with the rocker arm cover off and listen to each valve train combination approximately 1/2'' from the pad on the rocker arm using a piece of heater hose to transmit the sound. See Figure 6. 1951 Buick Locating Noisy Lifter [...]
Because the fit of the plunger to the body is so close to provide an effective leakdown rate, it is very important that dirt, foreign particles and varnish be prevented from entering the lifter and that a continuous flow of oil is supplied to the lifter as explained in Section 10. In order to accomplish [...]
a. 1951 Buick Hydraulic Valve Lifters Function In addition to its normal function of a cam follower, each hydraulic valve lifter also serves as an automatic adjuster which maintains zero lash in the valve operating linkage under all operating conditions. By eliminating all lash in the operating linkage and also providing a cushion of oil [...]