Pacific coast Datsun Posted February 9, 2008 Report Share Posted February 9, 2008 Ok the clutch slave on my 74 620 decided to come apart again yesterday! This is the 3rd time this has happened & im semi pissed!! I was on my way to the new house & i noticed the clutch started slipping bad! I get there & i notice that the clutch slave piston has come all the way out & is only being held in place by the rubber boot.I put it back together... I then fill the res. with fluid & have my wife help me bleed the clutch & i see fluid leaking again...looks like its getting past the piston. When this happened last month in Arizona it was because the clutch fork broke & it has alot of play. This time i dont think it's the case but i do notice the fork has some movement to it. What the hell.. is this just the slave going bad [only 2 years old] or can it be a trans. issue? Thanks guys...:confused: Quote Link to comment
datzenmike Posted February 9, 2008 Report Share Posted February 9, 2008 Did you grease the ball that the arm pivots on? If not the arm may be wearing. Is the push rod from the slave to the arm worn? Quote Link to comment
Pacific coast Datsun Posted February 9, 2008 Author Report Share Posted February 9, 2008 I didnt grease the arm & the push rod looks to be ok. I used the one supplied w/ the new clutch slave. Quote Link to comment
datzenmike Posted February 9, 2008 Report Share Posted February 9, 2008 Do you still have the old rod, was it the same length, I wonder. If you remove the slave and rod and slide the boot off a bit, you could probably move the clutch arm forward enough to wipe a bit of white grease behind it on the pivot ball. Makes the pedal action 'smoother'. Quote Link to comment
jnec510 Posted February 9, 2008 Report Share Posted February 9, 2008 i had te same problem on my 72 wagon an i reused the old one an greased all the conections points an never had te problem again. Quote Link to comment
Pacific coast Datsun Posted February 10, 2008 Author Report Share Posted February 10, 2008 Well from what i can recall the new pushrod was the same length as the old one. Im also wondering if the pivot ball for the clutch fork is'nt worn down causing excessive play !? Im wanting to do a 5 speed swap soon & this may be the end of the 4 speed. Quote Link to comment
dat521gatherer Posted February 10, 2008 Report Share Posted February 10, 2008 are the 620 push rods not adjustable like on the 521? maybe stick a 521 adjustable push rod in to take up any slack. Quote Link to comment
datzenmike Posted February 11, 2008 Report Share Posted February 11, 2008 The 620s aren't adjustable. The ball is replaceable but a 5spd is better. Quote Link to comment
Pacific coast Datsun Posted February 12, 2008 Author Report Share Posted February 12, 2008 I believe i know what happened...again! The clip that holds the clutch fork in place came loose & caused the fork to have excessive play thus causing the clutch slave to come apart..again! I think ill start planning the 5 speed swap. Quote Link to comment
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