Clutch bleeding

mach1rob · 12th October 2008, 18:44

Well, after todays unsuccessful attempt at bleeding, looks like I'm going to have to find a replacement master cylinder

No matter how many times pedal was pumped fluid remained in reservoir, nothing came out the bleed screw. Now I kind of assume that the slave would also be either devoid or rather low on fluid, so the whole lot would still need bleeding once a new master was fitted yes?

Phil · 12th October 2008, 18:47

The cylinders come prefilled so shouldn't need bleeding. Once the fluid has got low enough not to enter the Master clylinder, providing it is the master that has leaked and not the slave, then fluid should remain in the slave. Unless that has a leak too.

mach1rob · 12th October 2008, 18:54

That's what I thought, but even with bleed nipple removed there was no sign of fluid there at all!

pondweed · 12th October 2008, 20:30

you did take the rubber condom thing out after you unscrewed the top, didn't you?

mach1rob · 13th October 2008, 11:37

Oh yes! I may have another look next weekend in case there is something causing a blockage as I winced when I rang Xpart this morning for a price!

mach1rob · 18th October 2008, 15:36

Just removed master, and eurgh! As well as fluid, it had a load of black gunk in the bottom, and appeared to have a good coating of a grey grease in places where you'd not expect to see it!

Was hoping to get the replacement master today, but guy wasn't there, so arranged to collect next Sat, but I forgot got friends coming for weekend!

Raistlin · 18th October 2008, 15:53

Quote:

Originally Posted by mach1rob

Just removed master, and eurgh! As well as fluid, it had a load of black gunk in the bottom, and appeared to have a good coating of a grey grease in places where you'd not expect to see it!

Was hoping to get the replacement master today, but guy wasn't there, so arranged to collect next Sat, but I forgot got friends coming for weekend!

Would it be reuseable if you cleaned it out?

mach1rob · 18th October 2008, 16:03

Possibly, I've dismembered it, piston looks ok, seals aren't perished or split/worn, but seeing as manifold is off and in bits, it's not going anywhere soon!

12th October 2008, 18:44	#1
mach1rob Gets stuck in Join Date: Jan 2007 Posts: 889 Thanks: 0 Thanked 1 Time in 1 Post	Clutch bleeding Well, after todays unsuccessful attempt at bleeding, looks like I'm going to have to find a replacement master cylinder No matter how many times pedal was pumped fluid remained in reservoir, nothing came out the bleed screw. Now I kind of assume that the slave would also be either devoid or rather low on fluid, so the whole lot would still need bleeding once a new master was fitted yes?

12th October 2008, 18:47	#2
Phil This is my second home Rover 75 CDT Connoisseur SE Join Date: Nov 2006 Location: Wales Posts: 12,227 Thanks: 469 Thanked 523 Times in 241 Posts	The cylinders come prefilled so shouldn't need bleeding. Once the fluid has got low enough not to enter the Master clylinder, providing it is the master that has leaked and not the slave, then fluid should remain in the slave. Unless that has a leak too. __________________

12th October 2008, 18:54	#3
mach1rob Gets stuck in Join Date: Jan 2007 Posts: 889 Thanks: 0 Thanked 1 Time in 1 Post	That's what I thought, but even with bleed nipple removed there was no sign of fluid there at all!

12th October 2008, 20:30	#4
pondweed This is my second home Waiter, Waiter! I seem to have a Roomster in my drive... Join Date: Nov 2006 Location: Sussex Posts: 3,268 Thanks: 0 Thanked 1 Time in 1 Post	you did take the rubber condom thing out after you unscrewed the top, didn't you?

13th October 2008, 11:37	#5
mach1rob Gets stuck in Join Date: Jan 2007 Posts: 889 Thanks: 0 Thanked 1 Time in 1 Post	Oh yes! I may have another look next weekend in case there is something causing a blockage as I winced when I rang Xpart this morning for a price!

18th October 2008, 15:36	#6
mach1rob Gets stuck in Join Date: Jan 2007 Posts: 889 Thanks: 0 Thanked 1 Time in 1 Post	Just removed master, and eurgh! As well as fluid, it had a load of black gunk in the bottom, and appeared to have a good coating of a grey grease in places where you'd not expect to see it! Was hoping to get the replacement master today, but guy wasn't there, so arranged to collect next Sat, but I forgot got friends coming for weekend!

18th October 2008, 16:03	#8
mach1rob Gets stuck in Join Date: Jan 2007 Posts: 889 Thanks: 0 Thanked 1 Time in 1 Post	Possibly, I've dismembered it, piston looks ok, seals aren't perished or split/worn, but seeing as manifold is off and in bits, it's not going anywhere soon!