95 K1500 Clutch Issue

I have a 95 Sierra K1500 with a 5 speed manual, that has developed an issue when shifting between gears. For years I have delt with the known issue of difficulty shifting into 1st and Rev. without first
putting it in 2nd or 4th, but this is different and getting worse. I seem to have almost no play at the end of the clutch travel, ie when in gear I only need to let out a fraction of an inch on the peddle before I feel it start to engage. If I have trouble putting it in gear and I pump the clutch several times it seems to work better, but recently that is having less positive effect. I bled the clutch and did remove a tiny bit of air, but though this helped a bit at first it did not seem to last. The clutch parts, master cylinder and slave were replaced about 50K ago. One thing I did notice and am really wondering about is the position of the slave cylinder. When bleeding I thought it was weird that the bleeder valve is on the bottom of the slave (6 o'clock) and not the top (12 o'clock). It would seem that this 6 o'clock position would not let all the air out of the line. Could the shop have installed this upside down ?? I could easily remove the two bolts on the slave and rotate it 180 degrees putting the bleed valve on top. The other strange thing is that this entire issue seems to be getting worse the hotter the outside temp. It also shifts better when I first start out after the truck has been sitting for a while, and gets worse the longer I drive it.
Any help would be greatly appreciated, James
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James wrote:

I'd try turning it to the 12 o'clock position, which is the way it is set up on my '90 k1500. This puts the bleed screw real close to the starter however, which is why it might have been installed downards for bleeding convenience.
At the same time I'd still check to see if the master or slave cylinders are leaking. I had the same situation as yours (getting worse the longer it's driven, and I constantly found air bubbles in the clutch reservoir) so I ended removing (not disconnecting) and inspecting the inside of both.
Good luck.
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====== ======
James wrote:
<snip> The clutch parts, master cylinder and slave were replaced about 50K ago. One thing I did notice and am really wondering about is the position of the slave cylinder. When bleeding I thought it was weird that the bleeder valve is on the bottom of the slave (6 o'clock) and not the top (12 o'clock). It would seem that this 6 o'clock position would not let all the air out of the line. Could the shop have installed this upside down ?? ============ ============ On Jul 8, 2004, 10:57pm (CDT+5) , after snipping up the OP..... red snipped-for-privacy@NOSPAMsbcglobal.net (Red) offered up......
I'd try turning it to the 12 o'clock position, which is the way it is set up on my '90 k1500.
This puts the bleed screw real close to the starter however, which is why it might have been installed downards for bleeding convenience.
At the same time I'd still check to see if the master or slave cylinders are leaking.
I had the same situation as yours (getting worse the longer it's driven, and I constantly found air bubbles in the clutch reservoir) so I ended removing (not disconnecting) and inspecting the inside of both.
Good luck. =========== ===========
Your hydraulics are bad. (fact)
and.........
chances are so is the clutch. ( a guess....)
MarshMonster ~:~ ======== ========
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OK I have this same problem, but everything except the clutch master is brand spankin new. I think it may be the master. Does anyone have a tried and trusted method of bleeding the slave . I question the method that is in the manual that I have, because you are supposed to bleed the slave with it loosed from the bell housing. I have bled it several times and still get the same result. any suggestions would be gratly appreciated
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OK I have this same problem, but everything except the clutch master is brand spankin new. I think it may be the master. Does anyone have a tried and trusted method of bleeding the slave . I question the method that is in the manual that I have, because you are supposed to bleed the slave with it loosed from the bell housing. I have bled it several times and still get the same result. any suggestions would be gratly appreciated
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Raise the fron end of the truck before bleeding. If the nose of the truck in "down", you will get air trapped in the back of the slaves...
Been there, done that.
HDS
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