Cast Aluminum Master and Slave Cylinders on sale!

[Agnem]

Yes all the hydraulic clutch parts are the same between the T-19 and the ZF. You can interchange them. The reason the plastic slaves split, is not because they are junk or not reliable. It is because the TOB was not maintained and properly lubricated on a maintanance interval by the owner, and excessive pedal effort is being used to shift. A split slave is a symptom, not a cause. I have recently learned that a large part of the problem with bleeding the slave is not the slave, but rather the line. Many of us have black plastic lines, where as a select few have a semi-translucent red line. I was able to witness an air bubble in the line itself, that was unable to be eliminated through the bleeder screw. My new favorite way is to push the fork towards the slave until it is fully collapsed multiple times, while vibrating the hydraulic line. I'm not going to go into what I would use to vibrate the line, or why I have something that would do that...... The airbubbles must be forced up through the Master. It is the only way.

 

[hesutton]

I've lubed my TOB with every oil change, and the plastic slave (less than 2 years old) still likes to leak, just not as bad at the original. As far as bleeding. I now bench bleed them before they are ever installed. Like you said, it a PITA to do it otherwise and with that stupid bleeder, it is way too easy to screw up.

Heath

 

[Agnem]

Heath, was your slave a Motorcraft? Where does it leak? You should always have a new olive when you install them.

 

[hesutton]

Mel, Missy purchased the Master, Slave, and the hydrualic line all from the local Ford dealer. They were opened from whatever package they were in and wrapped up for a Christmas present. So I can't confirm what she got from Ford was Motorcraft or not as I never saw the packaging they came in.

They came with new rings for both ends of the line. The slave leaks from the line or from the bleeder (can't tell for sure) and from the rod end. It's not as bad as the one that was one there when I bought the truck, but, it is alway wet with DOT flud when I service the TOB. I have to keep topping off the master from time to time to keep air out of the system.

Heath

 

[Agnem]

That's weird Heath. I've never seen one leak. Anywhere.

 

[sle2115]

That's weird Heath. I've never seen one leak. Anywhere.

I've seen many leak, mostly past the seal and I've seen both leak, metal or plastic...just worn out I guess

 

[dancrowley]

Cast Aluminum Master and Slave Cylinders ,Does size matter?

I have a 84 F-250HD 6.9 with a 88 ZF5 and I just bought a Coni-Seal Slave cylinder from Clark Discount Auto Parts for $41.64 shipped. It has a 1 1/4" cylinder bore. Their master cylinder only has a cylinder bore of 7/8". Should I get a master cylinder with a larger bore than the 7/8" one?

 

[FoMoCo]

I think that the ID is 7/8". I would like to get the Master in metal. If you can give me a part number.

 

[dancrowley]

metal master clyinders

I ordered a metal slave clyinder from Clarks Discount but when I got it, it was a plastic one. They tried to find me a metal one but could not. The said I could return it or if I wanted to keep it they would refund the shipping, which I decided to do. I think they are a good company to buy from. I did end up finding a new metal master clyinder on Ebay for $50.00. Dan

PS; Try Autoline Products on Ebay.

 

[Slade]

After my original plastic slave leaked I couldn't get the replacement ones to last more than a year. They were lifetime warranty and same as orginal but it gets old being towed home. Ford discontinued the original design for my '94 but sold me the upgraded version, master, slave and line and I haven't had any trouble out of it for many years. When to Ford guy told me the price I said that this was a pretty good reason to buy a dodge and he knocked the price down about $200. and it was still way expensive.

 

[riotwarrior]

Yes all the hydraulic clutch parts are the same between the T-19 and the ZF. You can interchange them.

Cool didn't know this for sure...did suspect it though!

Many of us have black plastic lines, where as a select few have a semi-translucent red line.

I have both....some red lines and black ones, the one I don't have and want is on the ole Tow truck 94, it's a braided stainless line... Me thinks it's the way to go! will try to get a picture one day soon....

In the process of ordering a metal master and slave...will see if they arrive or end up being sold out.

 

[mattplumber]

Stupid question here- 3 weeks ago my plastic slave split and puked all the fluid out. I tried replacing it with a very expensive oem replacement to no avail. Tried all bleeding techniques and ended up giving up and going to Napa and buying a pre-bled master and slave assy with metal parts and installed it and was back on the road in 40 min. Hardest part was cramming the slave rod against the clutch fork and getting it clipped in.
My question is- my pedal was hard as hell to push before the slave blew, now that the whloe thing is replaced, it is way softer, but not nearly as soft as my other truck. I've read here about lubricating the throw out bearing. How is this done? Does it require trans removal? Just asking because it sounds like an excellent PM item to add to my 5 month check ups that I perform on my truck.............

 

[Agnem]

I've written up that proceedure several times if you can find the old posts. Basically you have to pull the slave cylinder, and pull the fork. Then stick your hand in there and clean out the old, and grease up with new.

 

[riotwarrior]

Basically you have to pull the slave cylinder, and pull the fork. Then stick your hand in there and clean out the old, and grease up with new.

um what ifn u gots big hands n they don't fit too well... guess gotta try that when it's out of truck....make life easier...

All in all great idea, never thought of doing it that way.

 

[austin92]

Yes all the hydraulic clutch parts are the same between the T-19 and the ZF. You can interchange them.

I know this is an old thread but I was wondering if I could use power stroke upgraded hydraulics like what south bend clutch offers in my 83 6.9/zf5?


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