[Roadsters] Clutch slave cylinder problem (I believe?) ..

[Gary and Cindy Ault]

Mike,

You're spot on.

There should be two nuts on the clutch operating rod:  the closest to the 
clutch withdrawal lever is rounded to nestle into the depression the in the 
lever, and the second, closer to the slave cylinder, is a lock nut.  The 
rounded-end nut has two flats on it so you can hold it while loosening the 
lock nut and vice-versa.

There should be return spring.  Ond end hooks into the withdrawal lever, 
andthe other hooks into a projection which is part of the slave cylinder 
casting.

Do you have the exploded diagram from the Nissan Parts Manual?  If not, I 
can scan and send separately.

Gary

----- Original Message ----- 
From: "Michael Breen" <anpost at gmail.com>
To: <datsun-roadsters at autox.team.net>
Sent: Sunday, July 01, 2012 6:29 PM
Subject: [Roadsters] Clutch slave cylinder problem (I believe?) ..


> Hello,
>
> My question is about the connection of the clutch slave (operating) 
> cylinder
> push rod to the clutch withdrawal lever.
>
> Recently, I started noticing a gradual worsening of my clutch pedal
> effectiveness in allowing me to switch gears smoothly. It became necessary 
> to
> repeatedly depress the clutch pedal in order to allow for a relatively 
> smooth
> gear shift. This was all gears. Today, the clutch goes to the floor with 
> no
> resistance and I am unable to shift into any gear (I can hear the grind if 
> I
> attempt to shift). Also, if I attempt to start the car with the clutch
> depressed, while in a gear (I can put the car in gear when the clutch is 
> not
> spinning), the car will lurch forward as if I did not have the clutch
> depressed. So all this tells me that the clutch is working, but the 
> hydraulics
> in the master or slave is not functioning.
>
> My theory on what has happened here brings me back to my specific question
> about how the slave push rod interacts with the clutch withdrawal lever. 
> Is
> there supposed to be a nut screwed on the push rod that allows the push 
> rod to
> move the clutch withdrawal lever? My slave push rod is positioned through 
> the
> lever, but there is nothing forcing the lever either forward or backward, 
> so I
> am hoping a nut worked its way of the push rod over time and that is why 
> this
> problem became gradually worse and then finally, when the nut fell off
> completely, it stopped working all together.
>
> Diagrams I have reviewed seem to indicate that their is a withdrawal lever
> "Push Nut" that appears to be connected to the slave push rod to allow the
> lever to be pushed in a forward motion. I do not have this on my slave
> cylinder, so I am hoping this somehow fell off, although I don't see how 
> that
> could happen if it is enclosed on one side by the slave and on the other 
> by
> the withdrawal lever.
>
> Does this theory hold any water?
>
> Also, I see there should be a return spring involved here, but I cannot 
> see
> how it attaches , as my slave cylinder does not have a connecting point 
> for
> the spring, as I have seen in diagrams of Roadster slave cylinders.
>
> I have a 68 SRL311.
>
> Your advice/help is greatly appreciated.
>
> Thanks,
>
> Mike
>
> Michael Breen
> anpost at gmail.com
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>
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