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

[Michael Breen]

Thanks Gary,

I have the parts diagram - thanks for the offer to send. This is where part of
my confusion comes in with regard to the spring. On the diagrams, I see where
the projection on the slave for the spring is located, but I do not have this
on my slave.

Halfway through writing this email I went out to take another look. Your
description of the nuts was perfect and made it clear to me that the push rod
(as the name implies duh!) is pushing the clutch lever, not pulling it, so
there is no need for any nut on the rod on the far side of the lever. Your
description made this easy to understand for my feeble mind. Turns out that
all the parts are there, except the return spring and I can see now there is a
little hole next to the slave (not part of the slave), so I took a spring I
had around, hooked it up, and all my clutch problems that I have been
experiencing for the past three months are resolved.

I can't thank you enough for your help. Took me most of the day working on
this simple solution, but I feel great and I would not have figured this out
without your help. I love this car and I love this list!

I will get a new spring to be sure I have the correct strength and tension,
but I am good to go for now.

Thanks,

Mike

Michael Breen
anpost at gmail.com


On Jul 1, 2012, at 8:19 PM, Gary and Cindy Ault wrote:

> 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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