Master Cylinder Repair Kit - Page 2

swedishandgerman · Jan 27th, 2015, 12:28

The master cylinder is now back in the car and the fluid level has not reduced, so it looks like job done. However, I will look inside the hubs and around the calipers for other signs of leaks in due course.

A good quality set of circlip pliers is an absolute must for this project, unlike the rubbish I bought from Halfords.

A question: is there a correct fluid level inside the reservoir? I've always aimed for about 2cm from the top.

hans2 · Jan 28th, 2015, 02:08

The rebuild kit for the single circuit master I just installed failed to hold pressure. The installation went smoothly, as did the bench bleeding, but pedal kept going to floor after copious bleeding. So now I've got to go with a whole new unit, as I don't have the time to keep messing with it. Second Volvo brake rebuild kit I've bought that didn't perform as it should.

Derek UK · Jan 28th, 2015, 11:16

Make sure the cup washer on the rod that's held in by the circlip is the right way round. Cup should be to the outside to allow the rod to come back fully and allow the piston to come back past the fluid hole from the reservoir.

Adam, 2cm is OK, depends where you're measuring from. The anti splash "dish" on the cap should probably just be above the top of the fluid but I'm guessing, again...

Jan 27th, 2015, 12:28	#11
swedishandgerman Premier Member Last Online: Oct 23rd, 2023 21:39 Join Date: Apr 2007 Location: EXETER	The master cylinder is now back in the car and the fluid level has not reduced, so it looks like job done. However, I will look inside the hubs and around the calipers for other signs of leaks in due course. A good quality set of circlip pliers is an absolute must for this project, unlike the rubbish I bought from Halfords. A question: is there a correct fluid level inside the reservoir? I've always aimed for about 2cm from the top. __________________ 2006 XC70 D5 Manual 1968 Amazon Estate, B18A + Overdrive 2019 V60 D3 Momentum Pro Manual 1970 Amazon 2-Door 1970 142DL

Jan 28th, 2015, 02:08	#12
hans2 New Member Last Online: Jun 21st, 2022 00:21 Join Date: Mar 2012 Location: US Southeast	The rebuild kit for the single circuit master I just installed failed to hold pressure. The installation went smoothly, as did the bench bleeding, but pedal kept going to floor after copious bleeding. So now I've got to go with a whole new unit, as I don't have the time to keep messing with it. Second Volvo brake rebuild kit I've bought that didn't perform as it should.

Jan 28th, 2015, 11:16	#13
Derek UK VOC Member Last Online: Yesterday 20:59 Join Date: Jul 2006 Location: Chatham	Make sure the cup washer on the rod that's held in by the circlip is the right way round. Cup should be to the outside to allow the rod to come back fully and allow the piston to come back past the fluid hole from the reservoir. Adam, 2cm is OK, depends where you're measuring from. The anti splash "dish" on the cap should probably just be above the top of the fluid but I'm guessing, again...

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