What puts thrust loads on a camshaft?

Answer 1

normal Thrust loads are from the asymmetrical (uneven) forces of the camshafts drive chain, gear, belt, as well as the loads of the valve springs, and distributor not being uniformly placed perpendicular (straight up or down) to the bearing loads.

Basically 'It is run-out.'
the camshaft is being rotated by a chain or belt those forces will not be uniformly perpendicular to the center-line of the camshaft, therefore, some of those forces will be transmitted along the center-line of the cam causing it move forward or to the rear. The total amount of these forces will be the thrust.

Hey Grumpy, what puts Thrust Loads on a camshaft?
Grumpy says: why Clem, you knows it's that John Deere Thrust loadin' machine we got out back.
Clem says: Grumpy that ain't no 'Thrust loader' that's a Turbo-encabulator vector force summation meter you painted green & Yellow.
Grumpy says: Shhhh Clem "Tonight we take over the world."


Yours: Grumpy

Answer 2

The distributor gear that is driven by the camshaft applies a thrust load. The installation of an inexpensive thrust button on the end of the camshaft will help alleviate this problem.

Answer 3

your new 1st question no answers
1st give more info on car year make model as all are different just ad details to your question and ill ad details also

first answer ir rite for some, not all
the thrust can also be the normal moving in and out as the cam spins
my 3.8 Buick has a small spring that pushes it back a little if the distributor is on the end of shaft as on many 4 clys it doesn't push it at all either way there is almost never engulf pressure on the cam for there to be a problem

i just rembered another one gear to gear like what is in some gm 4 cyls the gears in the way they mesh will cause some and they did have some problems with a little noise