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#1 |
user # 2756
![]() Join Date: Jun 2001
Location: Chesapeake, Virginia
Posts: 4,612
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I am near the end of my manual tranny swap and need to bleed the hydraulic clutch. What is the best way to do this? Everything is new, master, slave and hydraulic line. The pump/bleed method is not working. Any help is appreciated. I would like to get this done tomorrow. This is on my 86 K5 w/ 87 parts (should be the same).
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1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm ![]() |
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#2 |
Registered User
Join Date: Nov 2009
Location: Wasilla, AK
Posts: 14
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Re: bleeding clutch
Been there myself. Take it out and bench bleed it. Total pain otherwise.
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1986 K30 cab/chassis with 9 foot aluminum diamondplate flatbed. 454 (now a 350)/SM465/205/14b/Dana 60/IMT belt driven air compressor |
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#3 |
Registered User
![]() Join Date: Jul 2014
Location: Dayton, TX
Posts: 335
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Re: bleeding clutch
Agreed, MUCH faster to do out of the truck.
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'83 Silverado Step Side '85 GMC short bed. '86 Chevy Step Side Custom Deluxe LQ9/4L80 swap (SOLD) |
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#4 |
Registered User
Join Date: Mar 2012
Location: edgartown mass
Posts: 852
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Re: bleeding clutch
after going thro this myself and asking every one the had one of these trucks i got pissed. but it in to get the lines right then pull it out and bleed it. its to much of an angle to get the air out in the truck you will have to turn eveything to mive the air. also do not worrie about reseting the slave till the vary end. bleed it like its dead headed once its rick hard with zero play then reset the slave. its the only way that is 100% that i have found
__________________
1986 c20 "the hillbilly" 350 sm465 3.42gears 21mpg at 70mph 1985 k30 "the ice cream truck from hell" no rust az truck 197-8??? c30 "ramp truck" 454 1978 monte carlo 350 350th with 2.73 gears. no rust. sc car |
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#5 |
user # 2756
![]() Join Date: Jun 2001
Location: Chesapeake, Virginia
Posts: 4,612
|
Re: bleeding clutch
Thanks. Going to remove shortly.
__________________
1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm ![]() |
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#6 |
Registered User
Join Date: Feb 2011
Location: Cold Canada
Posts: 310
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Re: bleeding clutch
how do you reset the slave? push the plunger all the way back?
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#7 |
Registered User
Join Date: Apr 2012
Location: Chatt Tn
Posts: 969
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Re: bleeding clutch
best way is to take the slave loose, and slowly push it in and out. more volume in the slave. thats how we do all our cummins conversions.
__________________
88 military v30 crewcab shortbed 5.9 cummins, nv4500, 205 86 k30, 89 diesel burb, 76 gmc pathfinder 71 longbed 5.3 4l80 http://67-72chevytrucks.com/vboard/s...d.php?t=522535 |
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#8 |
Registered User
Join Date: Mar 2012
Location: edgartown mass
Posts: 852
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Re: bleeding clutch
sometimes to reset the slave i open the bleeder with the pushrodin the slave as i push against the bench or what ever then close it back up. other times it will push in with some force
__________________
1986 c20 "the hillbilly" 350 sm465 3.42gears 21mpg at 70mph 1985 k30 "the ice cream truck from hell" no rust az truck 197-8??? c30 "ramp truck" 454 1978 monte carlo 350 350th with 2.73 gears. no rust. sc car |
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#9 |
Registered User
Join Date: Feb 2011
Location: Cold Canada
Posts: 310
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Re: bleeding clutch
ok i didnt know this trick, thanx i will try it when needed
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#10 |
user # 2756
![]() Join Date: Jun 2001
Location: Chesapeake, Virginia
Posts: 4,612
|
Re: bleeding clutch
Well, this was the easiest I have ever bled a clutch. me and my son had it done in 5 minutes, so much easier with the master and slave on the bench. Thanks.
__________________
1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm ![]() |
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#11 |
Registered User
Join Date: Mar 2012
Location: edgartown mass
Posts: 852
|
Re: bleeding clutch
no problem. i had might fight with the clutch back when i got my c20. time wasted is no fun
__________________
1986 c20 "the hillbilly" 350 sm465 3.42gears 21mpg at 70mph 1985 k30 "the ice cream truck from hell" no rust az truck 197-8??? c30 "ramp truck" 454 1978 monte carlo 350 350th with 2.73 gears. no rust. sc car |
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#12 |
user # 2756
![]() Join Date: Jun 2001
Location: Chesapeake, Virginia
Posts: 4,612
|
Re: bleeding clutch
Can anybody explain "setting the slave" again, I guess I am dense. I have already put the assembly in the truck and it will engage/disengage the clutch, but the clutch does not grab until almost all the way out. I know that is wrong. Thanks,
Jim
__________________
1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm ![]() |
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#13 |
Registered User
Join Date: Mar 2012
Location: edgartown mass
Posts: 852
|
Re: bleeding clutch
see how much travel you have at the fork. think its 3 inch??? or about there if a remember right. then go form there. i can relook at mine to see what it is tomorrow after work if you need. but do no they grab some low and mine is all out but the last 1 inch. not much play.
__________________
1986 c20 "the hillbilly" 350 sm465 3.42gears 21mpg at 70mph 1985 k30 "the ice cream truck from hell" no rust az truck 197-8??? c30 "ramp truck" 454 1978 monte carlo 350 350th with 2.73 gears. no rust. sc car |
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#14 |
user # 2756
![]() Join Date: Jun 2001
Location: Chesapeake, Virginia
Posts: 4,612
|
Re: bleeding clutch
I think my throw out bearing is always touching the pressure plate.
__________________
1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm ![]() |
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#15 |
Registered User
Join Date: Mar 2012
Location: edgartown mass
Posts: 852
|
Re: bleeding clutch
what makes you think that?
__________________
1986 c20 "the hillbilly" 350 sm465 3.42gears 21mpg at 70mph 1985 k30 "the ice cream truck from hell" no rust az truck 197-8??? c30 "ramp truck" 454 1978 monte carlo 350 350th with 2.73 gears. no rust. sc car |
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#16 |
user # 2756
![]() Join Date: Jun 2001
Location: Chesapeake, Virginia
Posts: 4,612
|
Re: bleeding clutch
In 1st gear, I should be able to get the truck moving with no throttle, but the blazer does not move until the clutch pedal is almost up. I will get under therear tomorrow after work and check.
__________________
1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm ![]() |
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