clutch pedal confusion!

[dave_hl]

well after putting up with my heavy clutch and having a look at how the clutch pedal works in my haynes manual id thought id take a closer look at mine to see if i could ajust the push rod etc and give it a bit of a service.

- first of all i dont think the clutch could entirely dis-engage as it bottomed out on the floor and the height from carpet to pedal was 30mm less then is supposed to be.

- secondly when i opened up the plastic stuff where your shins are to access the clutch i found the spring thats supposed to assist in dis-engaging the clutch sitting there snapped.

- thirdly, i couldn't see where the push rod was.. and thats because it doens't have one.

- and lastly, it doesn't have that other little spring that connects to that triangular plastic thing. and is that plastic triangle supposed to pivot where it is bolted on? otherwise i dont see the purpose of that smaller spring.

 

so everything seems a bit odd but feasible that its a bit off and springs may have snapped... but the pushrod is not even in there!, like as though someone has decided its not needed and threw it away.

any suggestions?[/i]

[Bruce]

any chance of posting some photos?

[dave_hl]

yeah i took one on my phone when i was out there this morning but its extremely terrible so i wont even bother posting it... ill take another proper one soon.

[dave_hl]

ok well this ones not much better, but theres a hole where the push rod should attatch on the pedal, just below that 'stopper' thing. (cant see it in photo)

[Zeddophile]

so you're saying there is no pushrod coming out of that rubber boot on the firewall??? I swear I can see one side of the saddle on the end of the pushrod peeking out around the pedal....

 

Or are you saying there is no pin going through the end of the pushrod and through the pedal?

 

Besides, there has to be a pushrod, otherwise movement from a standing start would involve starting the car in gear, or a lot of crunching.

[dave_hl]

alright everybody go ahead and laugh. i knew i should have checked the name of what i was talking about before posting. by pushrod i meant adjusting rod.... that would be quite hard to drive a car without the pushrod.

heres a diagram out of the haynes of apprantly what my clutch setup should look like... its just missing 2 springs (i found the bigger one snapped) and the ADJUSTING rod.. hehe.

is there any reason it might have been removed.

also as i said in my other post when the clutch is engaged and the pedal is fully out it hits a stopper/switch which isn't in the diagram. its located just above where the ajusting rod should connect and can be seen in the photo i took, kinda hard to make it out though.

hope that makes a bit more sense!

[nat0_240_chevZ]

have a look at the angle of the pushrod if it looks like its cocked up then try that 2nd hole down lower on the pedal. the larger spring should attache to the upper hole and a small pressed hook above the pedal assy.

 

the spring is not there to release the clutch but to bring the pedal back that bit furthar to allow the clutch master cylinder to top up with fluid from the resevoir. the stop adjustment is to set the starting position of the pedal ie in line with the brake pedal + a few mm check the manual as it is correct.

 

otherwise try bleeding the clutch hydraulic circuit.

 

 

ALSO the adjuster should be part of the pushrod closet to the 'fork' for the clevis pin closest to your pedal.

should be a 12mm locknut i thing then you spin the pushrod with your fingers. Note the pedal pos'n in respect to your brake pedal, and also the owners manual. (i found a lil but closer than the brake by say 10mm give sufficient travel for a h/d clutch)

 

my experience is with the 240z/260z's but your pics almost identifies them as being an identical setup.

 

 

nato

[Zeddophile]

the rubber thing that your pedal hits when released is the stop - thats what it does, its adjustable so you can get the pedal height correct.

 

The adjustment should be, as Nat said, on the pushrod itself. I took a photo of a 280zx clutch master I have in my garage which should help you see whats going on before you stick your head under the dash again. As you can see, the forked part that attaches to the pedal is threaded, and there is a locknut behind it to stop the pushrod rotating during use and adjusting itself. Back the locknut off, and you should be able to rotate the pushrod with your fingers.

[dave_hl]

oh, i didn't see this reply to the thread i started, that makes perfect sense zeddophile. ill go try that in a sec.