Turbo-Jet

Hey guys. Has anyone had luck with rebuilding their M/C with a kit?



Mine appears to be working fine, but I am replacing calipers, lines etc and now would be an opportune time service the M/C if required. I don't think I need too replace it with a new unit quiet yet. Can it hurt to install such a kit? What problems are typical of a bad M/C?

Thanks :)

Twin_Turbo

if you pull it apart, look down the piston bore, if there's any pitting or corrosion I would replace it since they are cheap and it's much more work to properly rebuild them with all the cleaning involved.

joeveto

:iagree:

I wouldn't mess with rebuilding. They are cheap.

gliot1

I did it to keep a numbers match master. It was easy, and I had great results. It took an hour from removal to reinstall. Follow the GM manual; make sure you clean the cylinder and check for corrosion. If you don't care about orginality masters are cheap; but I have read a lot of horror stories about problems with the "professionaly" rebuilt ones, especially from your discount auto stores.

pws69

I sent my MC to Apple Hydraulics in NY for a new sleeve, then rebuilt it from there myself. Apple did a real nice job and I still have my matching unit.

gerry72

That's the way to do it if you have a numbers cylinder with a bad bore that you need to keep. If it's a numbers cylinder with a perfect bore (no wear, rust, pitting) then use the kit because all you're doing is putting new seals in it. If the cylinder is not a numbers part and has a marginal bore then get a new, not rebuilt, cylinder.

Master cylinder problems manifest themselves as brake failure in one or both circuits or fluid leaks.

By the way, the kit you show is for a 77 and later master cylinder. You need a kit for the deep-well piston whether you have manual or power brakes.

68raggtop

I bought the kit also. went to install it and discoverd the MC had been bored oversize and fited with oversize seals :mad Save the headache and go with new. :thumbs:

NHvette

I have found rebuilt units are dirt cheap ... for good reason.

A new one would be good, but not cheap.

I will be rebuilding my 75 unit ... with a similar kit.

If you want something done right ... DIY. :seeya

wcsinx

This is something I've been contemplating as well. While it's not an exorbitant cost for a new MC, it is still a significant savings to rebuild. So what I've gathered here is essentially...

if bore = good then rebuild otherwise new MC.

yes?

btw, your pic is wrong .. you prob. need this one




[Modified by wcsinx, 6:23 PM 3/29/2004]