89 nissan hardbody 2.4, clutch (no pressure)

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velkin
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I can put the truck in gear before starting. The clutch goes all the way to the floor. It has been sitting up for about 10 years.

Suggestions please.


velkin
Posts: 104
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Location: mid south united states

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velkin wrote:
Tue Jul 19, 2022 9:34 pm
I can put the truck in gear before starting. The clutch goes all the way to the floor. It has been sitting up for about 10 years.

Suggestions please.
Mr. vstar, what you got on this one?

velkin
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velkin wrote:
Tue Jul 19, 2022 9:34 pm
I can put the truck in gear before starting. The clutch goes all the way to the floor. It has been sitting up for about 10 years.

Suggestions please.
Mr. vstar, what you got on this one?

whomadewho
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Lot of arm chair suggestions..... You mentioned vehicles sat for 10 years ....the clutch assembly is rusted .... check the master cylinder for fluid.....good possibility the slave cylinder is stuck...possibility cracked line. Does the engine turn over??? Whatever you do ...DO NOT!! try to dry start the engine. Pull the valve cover.... tap on the rockers with a hammer to ensure the valves are not stuck....pull the spark plugs pour a small amount of oil in each cylinder...check all the belts to ensure that there not rusted to the pulleys..... take a ratchet or breaker bar and socket and turn the engine over by hand....when the engine turns over freely you might want to check compression so you have a base line idea. .the engine needs to be pre-oiled before starting...... could pull the coil wire and remove the fuel pump relay under the turn the engine over until oil is visible at the rocker arm assembly...Make sure you reinstall the cover before starting the engine....consider the fuel system...brake system... keep in mind the mice may have been living rent free in the truck for the past 10 years basically what you are trying to do is making a beautiful fruit salad out of HORSE S..T! ... Could sell it as is....Ran excellent the last time it was driven.

velkin
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whomadewho wrote:
Thu Jul 21, 2022 4:26 am
Lot of arm chair suggestions..... You mentioned vehicles sat for 10 years ....the clutch assembly is rusted .... check the master cylinder for fluid.....good possibility the slave cylinder is stuck...possibility cracked line. Does the engine turn over??? Whatever you do ...DO NOT!! try to dry start the engine. Pull the valve cover.... tap on the rockers with a hammer to ensure the valves are not stuck....pull the spark plugs pour a small amount of oil in each cylinder...check all the belts to ensure that there not rusted to the pulleys..... take a ratchet or breaker bar and socket and turn the engine over by hand....when the engine turns over freely you might want to check compression so you have a base line idea. .the engine needs to be pre-oiled before starting...... could pull the coil wire and remove the fuel pump relay under the turn the engine over until oil is visible at the rocker arm assembly...Make sure you reinstall the cover before starting the engine....consider the fuel system...brake system... keep in mind the mice may have been living rent free in the truck for the past 10 years basically what you are trying to do is making a beautiful fruit salad out of HORSE S..T! ... Could sell it as is....Ran excellent the last time it was driven.
Thank you sooooooo much for the advice. I've powered through most of the above steps, however I can still pull alot of information from your reply. THANKS!

- truck runs
- new fuel pump, fuel tank, plugs, wires, distributor, rotor
- master cylinder full of fluid
- no signs of mice(s) LOL
- value cover was pulled for an head gasket leak (fixed), rockers look great.

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VStar650CL
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If it goes into gear when stopped then the tranny should be okay (although some fresh fluid would be a good idea before trying to move it). The clutch is a pretty standard hydraulic type with a master, damper, and slave, with the slave pushing on a normal release fork and throw-out bearing. After 10 years there's a good chance the seals are crapped and/or there's no fluid in it. If it's empty, the air bleed is in the damper, but you should bleed the master at the outlet fitting before bleeding the lower half of the system. If it's corroded or the seals are crapped, as I recall the master and slave are both cast iron and can be honed and reworked if you can find a set of cups and seals. The damper might be problematic if that's leaking. You'll want fresh fluid in any case, brake fluid is hygrophilic which is why rust and corrosion can decimate cast iron brake parts. Check out the CL section of your FSM here to see how everything works:
https://www.nicoclub.com/service-manual ... k_1989.pdf

velkin
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VStar650CL wrote:
Thu Jul 21, 2022 6:14 am
If it goes into gear when stopped then the tranny should be okay (although some fresh fluid would be a good idea before trying to move it). The clutch is a pretty standard hydraulic type with a master, damper, and slave, with the slave pushing on a normal release fork and throw-out bearing. After 10 years there's a good chance the seals are crapped and/or there's no fluid in it. If it's empty, the air bleed is in the damper, but you should bleed the master at the outlet fitting before bleeding the lower half of the system. If it's corroded or the seals are crapped, as I recall the master and slave are both cast iron and can be honed and reworked if you can find a set of cups and seals. The damper might be problematic if that's leaking. You'll want fresh fluid in any case, brake fluid is hygrophilic which is why rust and corrosion can decimate cast iron brake parts. Check out the CL section of your FSM here to see how everything works:
https://www.nicoclub.com/service-manual ... k_1989.pdf
Thanks again, MrVstar!

velkin
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slave cylinder look rusty
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slave cylindar.jpg
slave cylindar2.jpg

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VStar650CL
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It's cast iron, you have to expect that on the outside. What matters is if it's rusty inside. The trouble with cast iron cylinders is that when the seal cups sit on one place for too long, they tend to produce a ring of corrosion in the cylinder wall. So you'll just have to see if it actually bolds pressure when good hydraulic force is applied. Like I said, you can hone and rebuild them provided you can find the rubber parts. The current problem can't be in the slave alone, because the slave only receives pressure, it doesn't generate anything but mechanical force. So if it was leaky it would be blowing fluid out the business end. Your problem has to be up above that, where the hydraulic pressure is generated. If it isn't air in the lines, then either a blocked damper or a bypassing master.

velkin
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new clutch
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new clutch.jpg

velkin
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velkin wrote:
Mon Jul 25, 2022 8:04 am
new clutch
next step (bleed the new clutch)

velkin
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I'm self bleeding ($10 kit i could have made) and the fluid is making it from the master past the damper(deleted) to the slave cylinder. But my clutch is not getting stiffer. But I'll keep at it! Thanks everyone.

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VStar650CL
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If the slave is moving the shift fork but nothing is happening, then whatever is wrong is inside the bellhousing. Either there's nothing left of the clutch plates or the fork or pivot have rusted away.

velkin
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VStar650CL wrote:
Tue Jul 26, 2022 12:11 pm
If the slave is moving the shift fork but nothing is happening, then whatever is wrong is inside the bellhousing. Either there's nothing left of the clutch plates or the fork or pivot have rusted away.
:facepalm: :ohno:

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VStar650CL
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velkin wrote:
Tue Jul 26, 2022 1:10 pm
:facepalm: :ohno:
Rust never sleeps. You had to know coming in that a cakewalk was unlikely....

velkin
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VStar650CL wrote:
Tue Jul 26, 2022 1:18 pm
velkin wrote:
Tue Jul 26, 2022 1:10 pm
:facepalm: :ohno:
Rust never sleeps. You had to know coming in that a cakewalk was unlikely....
Well the upside is, i've spent my time (therapy) and money ruling things out several diy items. :mike

velkin
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velkin wrote:
Tue Jul 26, 2022 2:36 pm
VStar650CL wrote:
Tue Jul 26, 2022 1:18 pm

Rust never sleeps. You had to know coming in that a cakewalk was unlikely....
Well the upside is, i've spent my time (therapy) and money ruling things out several diy items. :mike
I've also Met some incredible nissan geaks!

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VStar650CL
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velkin wrote:
Tue Jul 26, 2022 3:12 pm
I've also Met some incredible nissan geaks!
Guilty, Your Honor. :gapteeth:

velkin
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VStar650CL wrote:
Tue Jul 26, 2022 3:23 pm
velkin wrote:
Tue Jul 26, 2022 3:12 pm
I've also Met some incredible nissan geaks!
Guilty, Your Honor. :gapteeth:
If i was going to adjust the clutch pedal, which way should i adjust, up or down? Also I hope the 33 year old dust cover didn't lead to all of this?

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VStar650CL
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Do you feel much resistance from spring tension when you press the pedal, or does it feel light and sloppy? Adjusting the pedal higher will give you more movement, adjusting it toward the floor will give you less.

velkin
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VStar650CL wrote:
Tue Jul 26, 2022 4:44 pm
Do you feel much resistance from spring tension when you press the pedal, or does it feel light and sloppy? Adjusting the pedal higher will give you more movement, adjusting it toward the floor will give you less.
How dare you! She doesn't feel loose and sloppy! :chuckle: I'm going to try and look at the clutch throw bearing and the fork (thingy)

thanks for all your help

velkin
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looks like i'm ordering a clutch kit......

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VStar650CL
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velkin wrote:
Tue Jul 26, 2022 4:51 pm
How dare you! She doesn't feel loose and sloppy!
Loose and sloppy comes with old age. Or at least that's what most of the women I know pin it on.

(Yes, that was utterly sexist, and if this was Twitter or Facebook, I might give a crap. My wife and my cat both snickered, and those are the only females whose counsel I rely on. In your face, Zuckerberg.)

velkin
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VStar650CL wrote:
Tue Jul 26, 2022 7:55 pm
velkin wrote:
Tue Jul 26, 2022 4:51 pm
How dare you! She doesn't feel loose and sloppy!
Loose and sloppy comes with old age. Or at least that's what most of the women I know pin it on.

(Yes, that was utterly sexist, and if this was Twitter or Facebook, I might give a crap. My wife and my cat both snickered, and those are the only females whose counsel I rely on. In your face, Zuckerberg.)
:chuckle: I love it here, in non compliance land. I guess you can't discard a truck or woman for over 10 years and expect her to stay in tip top shape. :rotfl

velkin
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Good morning All,

I know I'm fishing here, but, how do i check the transmission oil in my manual tranny?

I know the guys are going to give my hell

am i really suppose to put my finger in there? (see attachment)
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VStar650CL
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velkin wrote:
Wed Jul 27, 2022 9:13 am
am i really suppose to put my finger in there? (see attachment)
Yes. It's old, so hopefully it will be loose and sloppy.
:lolling:

velkin
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VStar650CL wrote:
Wed Jul 27, 2022 9:31 am
velkin wrote:
Wed Jul 27, 2022 9:13 am
am i really suppose to put my finger in there? (see attachment)
Yes. It's old, so hopefully it will be loose and sloppy.
:lolling:
:crazy:
could that cause the issue of not being able to put in gear?

Maybe her new name should be LS (loose&sloppy)

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VStar650CL
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velkin wrote:
Wed Jul 27, 2022 9:40 am
could that cause the issue of not being able to put in gear?
No, if it goes into gear with the engine stopped then it should go in with the engine running, provided the clutch works at all. Maybe noisily, but it should go in. So I doubt the tranny itself is the issue, something is south in your clutch.

velkin
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VStar650CL wrote:
Wed Jul 27, 2022 10:08 am
velkin wrote:
Wed Jul 27, 2022 9:40 am
could that cause the issue of not being able to put in gear?
No, if it goes into gear with the engine stopped then it should go in with the engine running, provided the clutch works at all. Maybe noisily, but it should go in. So I doubt the tranny itself is the issue, something is south in your clutch.

Thanks again VStar!

velkin
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...and let's not talk about how i use to dump the clutch and burn rubber all the way thru 3rd gear. :sad:

:facepalm:
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