What is the difference between the 40 & earlier lifter plungers & the 41 & later ones. Will they interchange??
Thanks, Bob
Cadillac Serviceman March-April 1944 page 8
There is a nice illustration of both types and some dimensions.
The difference is in the body length of the larger diameter part of the plunger.
1936-40 is 1 7/64 inches
1941-early 48 is 59/64 inches
The body part that the plunger fits in also different
1936-40 is 1 3/32 inches long for the counterbore for the plunger
1941-early48 is 29/32 inches" " " " " " "
The parts books are clear you can't mix them. They are not clear if you use both plunger and body whether the unit will interchange.
Warren
My understanding is the complete lifer assembly will interchange for all years but the individual components will not. I used a complete set of third generation lifters for the late '48s in a '39 LaSalle which worked fine. Harry
Does that mean using the early bodies to go with the early plungers?
That is exactly what that means, Bob. The early bodies must be used with the early plungers.
There were three types of lifters used from 1936-48. I'll call them types 1-2-3.From what Harry did we know they interchange as sets.
Type 1 1936-40 Plunger and body separate
type 2 1941- early1948 Plunger and body separate
type 3 late 1948 Unit type plunger and body one piece
The plunger/body types are counterbored to different depths,so they must match. To work.
Warren
Thanks to everyone that responded.
Bob