Clutch pressure out? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

mcjc11 · 03-30-2009, 02:14 PM

So my friends dad got him a 1972 Datsun 510. The owner said it runs but the rear brakes are locked up and the clutch lost its pressure. WTF does that mean? I never heard of anything like this. But now we wanna get it running but we dont know how...HELP!! Any one know about clutches losing pressure? If so how did you fix it?!?!? I need help 'cause we just dont wanna go blow off $$$ on parts that we didnt need to change...

s14unimog · 03-30-2009, 06:04 PM

I'm sure he's talking about the hydraulic pressure. Just bleed the slave cylinder and see if it works. If that doesn't work, make sure the master cylinder and slave are in good shape. If still you can't get it working, just pull the tranny and replace the clutch. This is pretty much 5 speed 101 stuff....

palmdale_mob · 03-30-2009, 06:08 PM

^What he said
Check the master cylinder and slave cylinder first for fluid, then leaks

mcjc11 · 03-31-2009, 01:47 PM

Thanks guys...turns out it was the master cylinder

03-30-2009, 02:14 PM	#1
mcjc11 Leaky Injector Join Date: Feb 2009 Location: Mountain View CA Posts: 72 Trader Rating: (0) Feedback Score: 0 reviews	Clutch pressure out? So my friends dad got him a 1972 Datsun 510. The owner said it runs but the rear brakes are locked up and the clutch lost its pressure. WTF does that mean? I never heard of anything like this. But now we wanna get it running but we dont know how...HELP!! Any one know about clutches losing pressure? If so how did you fix it?!?!? I need help 'cause we just dont wanna go blow off $$$ on parts that we didnt need to change...

03-30-2009, 06:04 PM	#2
s14unimog Nissanaholic! Join Date: Dec 2003 Location: In a place, near a river, over a lake Age: 37 Posts: 2,415 Trader Rating: (22) Rides Gallery: s14unimog Feedback Score: 22 reviews	I'm sure he's talking about the hydraulic pressure. Just bleed the slave cylinder and see if it works. If that doesn't work, make sure the master cylinder and slave are in good shape. If still you can't get it working, just pull the tranny and replace the clutch. This is pretty much 5 speed 101 stuff.... __________________ Fuking ginger bread man stole my wallet... SHIFT*lock_slide to side d3m3rs0n: if i have a baby im naming it Brandons Fault Emerson

03-30-2009, 06:08 PM	#3
palmdale_mob Zilvia Addict Join Date: Sep 2008 Location: CA Age: 33 Posts: 825 Trader Rating: (12) Feedback Score: 12 reviews	^What he said Check the master cylinder and slave cylinder first for fluid, then leaks

03-31-2009, 01:47 PM	#4
mcjc11 Leaky Injector Join Date: Feb 2009 Location: Mountain View CA Posts: 72 Trader Rating: (0) Feedback Score: 0 reviews	Thanks guys...turns out it was the master cylinder