The Poorman's Off Chassis Restoration.Com
Car Nose Logo
Photo Gallery
Web Cam
Specs
Cost
Links
Raffle
Pin-ups
Erudition
Contact
Store
Home
IPC
Video
Parts
Comedy
Destructive Tests

 

 
 
 

Lifters:

Hydraulic type lifters slide into the lifter bore guides.

These guides are positioned over the cam lobes. Lifters are held in position by push rods, which fit under the rocker arms.

Lifters consist of a body, plunger, spring, check ball and retainer, rod seat, and
a snap ring. The body has an oil inlet hole, which allows engine oil into the plunger.
The plunger has a feedhole on the bottom. When the lifter is expanded, oil fills
the lifter. As the cam reaches its peak, and compresses the plunger, the check
ball blocks the oil from escaping. Since fluids cannot be compressed, the lifter
becomes solid.
Once the cam passes its peak the lifter expands releasing the trapped oil. While expanded, a hole in the rod seat allows oil to travel up the push rod to lubricate the top of the valves. A snap ring holds theses parts in place.