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MG MGA - Clutch Slave Cylinder

Hi everyone
It looks like I need to replace the clutch slave cylinder.
Looking at Moss, part no. GSY106 is 46 whereas the after market GSY106Z is just 18. I cant tell what the difference is.
For a car that probably does less than 1,000 miles per year, which should I buy do you think?

The repair kit only seems to be the two rubber seals, so not sure that is the way forward

Thanks
Graham V

Graham
What is wrong with your current cylinder?

If it's not seized, corroded or badly scored, it may be worth re-sealing it.
I would be disinclined to buy the cheap aftermarket version. I do think it's very much a case of 'you get what you pay for'.
Dave O'Neill 2

Hi Graham
I fitted a new slave cylinder in my A but soon after I had problems. I dissmantled and found an aluminium piston, which was scored. After checking my old parts I found it had a steel piston. I then bought a new unit making sure it had a steel piston so I suggest you check the type of piston in a new cylinder. I believe the MG guru posted info on his site.
Brian
Brian Paddon

Thanks Dave, thanks Brian
Dave, I dont know what's wrong with the existing one, as haven't taken it off yet. But with new parts relatively cheap, I thought it was easier just to replace. And the kit doesnt include everything - just two rubber seals, but maybe thats all I will need


Brian - I am guessing the more expensive one will be better quality, so whether I keep what I have, or buy new, I will make sure I avoid aluminium
Graham V

This thread was discussed between 24/08/2019 and 25/08/2019

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