clutch parts question

[240sx11]

ok ive got an issue and need help finding out about a part. ive got a 91 240sx that i just had a new clutch, master and slave cylinder put in. Well when i got it back it would slip a little. sometimes not much..or not at all and others would be worse. He said (my buddy that worked on it) that the only thing he could see it being is this little box looking thing that the slave cylinder feeds into. Niether of us has anyclue what this is. he said it might be some kind of a valve or something. There is only one line feeding out of the slave cylinder and it goes straight to this thing? what is it? and could this be the issue? last night i was on my way to class and it started slipping worse. got to the point were thats all it would do and i couldnt get the car to move. had to tow it. about two hours later when the car got back to my place it wanted to run just fine. I would think that the clutch got overheated or something? and when it cooled down it started working again? i dont know need help. any ideas?

[biggie]

It is a dampner box for the clutch pedal. Most people remove it and bend the line to go to the slave. If left on that section needs to be bled as well as on the slave itself.

But I wouldn't think that would cause the clutch to slip. It possible would cause the clutch to not disengage because there is air in the line.

[S13_RB25]

The box your talking about is a Clutch damper box. You don't need that, just go ahead and remove it and run the master striaght to the slave. Then bleed it and your good.

Nissan used the box to take pressure off the clutch but it doesn't help when we have a aftermarket clutch.

[240sx11]

so is that what is causing the sliping?

[S13_RB25]

Trust me it's that and plus there might air in the lines like biggie said...

[compactfean]

Did you get the flywheel resurfaced? If you didn't its possible that from normal wear and tear it made where the Clutch disc meets the flywheel resessed causing less clamping pressure. I resurface a flywheel every clutch job and when I get it back from my machine shop the actually recess the outer ring of the flywheel. Where the pressure plate bolts that way there is more clamping force on the disc. I would get a stainless steel braided line (only 40.00$) and bypass the block and bleed the crap out of it first.

[240sx11]

does anyone know what size the line is? just incase i have to get more line or probably just get a steel braided line. i dont know what size it is?

[S13_RB25]

Just get the auto to manual conversion stainless steel line off of enjuku racing. I got one and it's long enough for it fits perfectly...

[compactfean]

Just get the auto to manual conversion stainless steel line off of enjuku racing. I got one and it's long enough for it fits perfectly...

That's exactly the line I was talking about! Yeah fits perfect

[240sx11]

ok so last night me and a buddy took out that clutch box thing. bleeding the system was a breeze. it seemed to be just fine without it........and what i mean by seem. just my luck i went to drive it around to see if it didnt slip anymore and .....remember how i said last night? well my headlights stopped working. they still go up and down and my parking lights come on, just no headlights. they were working just fine before. im wondering if something got messed up when it was towed. anyone have any headlight wiring diag.? i checked the fuse and those look good. now its off to rip everyting apart to try and fix this. if its not one thing is another.

[240sx11]

But I wouldn't think that would cause the clutch to slip. It possible would cause the clutch to not disengage because there is air in the line.

another thing im worried about is if that actually fixed the slipping. because like he said he doesnt thingk that would cause the clutch to slip? i will drive it today during the day a little bit to see but im worried that it hasnt fixed the problem. its a new clutch and slave/master cylinder why would it be slipping? what could have happen? any input?

[biggie]

Is it slipping? As in when you press the gas the engine revs but no power going to the wheels?

Or is it the issue that the clutch isn't disengaging and can't switch gears, etc?

If it is slipping it would seem that either PP is bad or flywheel surface is the issue.

For the headlights, here is the FSM: http://www.nicoclub.com/FSM/240sx/91-94/
Could be the stalk/switch on the steering column gone bad, or fuse/relay/wiring.

[coolbone28]

If its slipping, it is probably a problem with the input shaft adjustment from the clutch pedal to the master cylinder. It is acting like you are riding the clutch. If there is any air in the system or you didnt bleed properly your symptoms would more likely be a dead clutch pedal or you wont be able to disengage the clutch and wouldn't be able to get it into/out of gear.

[240sx11]

Is it slipping? As in when you press the gas the engine revs but no power going to the wheels?
.

yes it is slipping. i removed the clutch box and got the lights to work. drove it home and seemed to do good. cant quite tell if its slipping a tiny bit or if im just parinoid now. but before it would be just fine one minute and the next start to slip. so what would cause it to drive fine....and then slip.....and then drive fine. cause like what was said before i doubt that the clutch box had anything to do with it. and when i had it towed he put it on the side of the road and i drove it in the driveway without it slipping? almost as if when it cooled down it was fine? im lost

[compactfean]

Rather you have a bad pressure plate (out of the box) which I doubt. Or the surface of the flywheel is toast. You didn't get it resurfaced did you? Unless you have a gallon of oil in you Clutch (which you would definitely know) I'm betting that trani is coming out either way because I've done 100's of clutches and all had no problems except when I was young and cheap.