Z Bar

you get the same if the bar is not in the right position in respect to the rail.

push it right up to the chassis rail. add the spring clip and then move it slowly away until you see the spring clip ends sink into the grooves in the white nylon half moon bushes on that side.

if you don't get this right the bar moves across towards the bellhousing. the spring clip ends sit past the inner end of the half moon bushes and all seems well but your clutch doesn't work due to the fact that the z bar in 3/4 of an inch in towards the centre of the car.
the angles are all slightly off and the spring clip for the pushrod binds on the pushrod eye.

the above scenario seems obvious. but is so easy to get wrong.
have to wonder how many Z bars have had their lower arms bent and twisted to "get them to work" when the issue is incorrect mounting

dave