Thanks for the wonderful video... its perfect.. I have a 97 12 valve in which the other day i had a hard time getting it into reverse.. Shut off engine and it would go in and start up no problem... A couple days after i was sitting at a red light with clutch depressed in 2nd and it suddenly lunged forward like the clutch snapped in for half a second..it didnt kill the engine but i was alarmed by that.. I think one of the cylinders.. master or slave is bleeding off.. but that was very strange... Any comments/Suggestions?? Thanks ahead of time...
No problem! It definitely sounds like one is bleeding off. My bet would be the slave cylinder (the one down on the bell housing). That’s been my experience anyways, never had a master cylinder go bad, always the slave cylinder first. Not saying it can’t happen though. One way you could check is pull the slave cylinder out. It’s just those 2 bolts that hold it to the bell housing. Once pulled out the rod will also pull out, that’s no big deal. But pull the boot back on the slave and see if there is oil in there. If there is oil in the boot it’s for sure leaking. Hope this helps!
I have a 99 cummins 5 speed im putting into a 01 cummins...the master and slave cylinders are the same but the routing is different for the different years....why? Does it matter, can I use the 99 hydraulic assembly in the 01??
I’m not sure why it’s different. I would have assumed that they are the same but apparently not. I imagine that it was a change so to an update on something else. Like they probably changed the routing to clear something else they changed would be my guess. As long as it fits and clears everything I imagine you’ll be fine.
I put one on my 98 12 valve it’s the adjustable model and I need help on how to adjust where it bits. I have to be rolling a little to get it to go into gear smooth and I can feel the truck have a small jump like the clutch isn’t fully activated. Any help? Plus I have a south bend single disc clutch in the trans so I know it’s not the actual clutch plate. How do I adjust this slave cylinder
So on the south bend hydros the only adjustment is on the rod that hooks to the pedal. You loosen the jam nut and turn the rod in or out to make the pedal move closer or farther from you. If I remember right they recommend that the clutch should start to engage when the pedal is about 2” from the floor. So push it all the way down and let it out slow and see where the clutch starts to grab. There is also other things you can check for troubleshooting. You can remove the slave cylinder and put a steering wheel puller in its place. Use that to push the clutch fork in. Or should only take 7/8” of travel to disengage the clutch. If not I think there is a problem. South bend has ( or at least the last time I called, it’s been a while) great costumer service. They have been very helpful every time I have called. So try them as well and see! Hope it’s helps. Good luck!
Hey Ben, not that I have noticed. Feels about the same. I think because the slave and master cylinders are both bigger it will feel the same on the pedal and just takes pressure off the internals of the hydraulics which makes it last longer. On my 2001 Cummins I’ve gone through 2 sets of factory size hydraulics before installing this upgrade set. I’m running a south bend 3250 dual disc clutch btw. Hope this was helpful. 👍🏻👍🏻
just what I was looking for ! thank you
Glad it was helpful!
Thanks for the wonderful video... its perfect.. I have a 97 12 valve in which the other day i had a hard time getting it into reverse.. Shut off engine and it would go in and start up no problem... A couple days after i was sitting at a red light with clutch depressed in 2nd and it suddenly lunged forward like the clutch snapped in for half a second..it didnt kill the engine but i was alarmed by that.. I think one of the cylinders.. master or slave is bleeding off.. but that was very strange... Any comments/Suggestions?? Thanks ahead of time...
No problem! It definitely sounds like one is bleeding off. My bet would be the slave cylinder (the one down on the bell housing). That’s been my experience anyways, never had a master cylinder go bad, always the slave cylinder first. Not saying it can’t happen though. One way you could check is pull the slave cylinder out. It’s just those 2 bolts that hold it to the bell housing. Once pulled out the rod will also pull out, that’s no big deal. But pull the boot back on the slave and see if there is oil in there. If there is oil in the boot it’s for sure leaking. Hope this helps!
I have a 99 cummins 5 speed im putting into a 01 cummins...the master and slave cylinders are the same but the routing is different for the different years....why? Does it matter, can I use the 99 hydraulic assembly in the 01??
I’m not sure why it’s different. I would have assumed that they are the same but apparently not. I imagine that it was a change so to an update on something else. Like they probably changed the routing to clear something else they changed would be my guess. As long as it fits and clears everything I imagine you’ll be fine.
I put one on my 98 12 valve it’s the adjustable model and I need help on how to adjust where it bits. I have to be rolling a little to get it to go into gear smooth and I can feel the truck have a small jump like the clutch isn’t fully activated. Any help? Plus I have a south bend single disc clutch in the trans so I know it’s not the actual clutch plate. How do I adjust this slave cylinder
So on the south bend hydros the only adjustment is on the rod that hooks to the pedal. You loosen the jam nut and turn the rod in or out to make the pedal move closer or farther from you. If I remember right they recommend that the clutch should start to engage when the pedal is about 2” from the floor. So push it all the way down and let it out slow and see where the clutch starts to grab.
There is also other things you can check for troubleshooting. You can remove the slave cylinder and put a steering wheel puller in its place. Use that to push the clutch fork in. Or should only take 7/8” of travel to disengage the clutch. If not I think there is a problem.
South bend has ( or at least the last time I called, it’s been a while) great costumer service. They have been very helpful every time I have called. So try them as well and see!
Hope it’s helps. Good luck!
Do these kits make the clutch pedal easier to push ??
Hey Ben, not that I have noticed. Feels about the same. I think because the slave and master cylinders are both bigger it will feel the same on the pedal and just takes pressure off the internals of the hydraulics which makes it last longer. On my 2001 Cummins I’ve gone through 2 sets of factory size hydraulics before installing this upgrade set. I’m running a south bend 3250 dual disc clutch btw. Hope this was helpful. 👍🏻👍🏻