LOUD click when pressing clutch......

[usajdm]

I'll say sorry now for the initial lack of info.
It's gonna be short too.

Girls at work.
Calls and says while at lunch, the car(89 s13 sohc ka24e) starts to let out a loud single "click" when the clutch pedal is pushed.
She compares the click to a rock hitting a windshiel on the freeway(without the shattering part).
It sems to be at about 3/4 way to the floor.
Does not seem to effect the shifting or drive of the car.
She says she feels a slight "twitch" in the pedal at the point of sound.
Back at work, car makes the same click even when not running.
Had my sister press the clutch while she observed the engine bay.
Says it sounds like its coming from the bottom passenger side of the brake-booster.
Also checked inside under dash and found nothing broken or out of place.
All fluids are at full levels.
Car has previously been running "great".
Clutchmaster and slave are about 6 months old.
Shes pretty into cars, so she knows what to look for and where.
So, any ideas?
Why would the sound come from the bottom-right of the brake-booster?
I'm due to work in a matter of minutes.
She'll be checking this thread before heading home, so any ideas or advice would help.

I wont get to see the car till tommorow morning, but hopefully this can help get a jump on the stuation.
Do you believe car is safe to drive home(about 10 blocks)?
My sister would be following her.

[let5l1de]

Sounds like a sticking clutch petal pivot or a dry pin that connects the master cylinder rod/fork to pedal. Lube it and test.

~m

[usajdm]

Thankyou let5l1de........
First thing I looked for when I got home.
Unfortunately, not it.(damn)
The sound seems to be coming from the actual transmission.
I was able to get under it for a quik sec. and Im pretty confident that its at the slave location but inside the transmission.
Definitely as a result of the clutchfork being pushed.

Well, back off to work for another double.
Hopefully the new info will help in getting more input.

Thanks in advance...........

[hektik13]

it may be your throw out bearing

[om3ga]

Hmm mine does this too, Never affected anything with shifting but i could feel the click in the clutch pedal but hear it as if it were in the tranny... Weird. It was like that on my KA with a brand new clutch kit. Then now on my sr i put a brand new clutch kit in and the SAME NOISE! wtf lol it has to be something else? But in both i am using the Nismo clutch fork pivot ball.. Maybe its bigger and causes that spring thing on the fork to go out of alignment for a second? Either way it was fine in the ka for a long time haha.

[usajdm]

Sorry to be beggin, but before I rip this s#!t apart Im hopin to get some direction of what Im lookin for.
Anyone thats delt with this problem, please chime in.

[[email protected]]

Maybe a worn / broken plastic bushing on the clutch pedal assy? Maybe its causing it to shift when the pedal is depressed.