[Healeys] BJ8 Rear Brake

[Healey]

Hi Bob - thanks - I just used regular DOT3 - nothing fancy

On Tue, Jul 6, 2021 at 8:45 AM Bob Haskell <rchaskell at earthlink.net> wrote:

> Neil,
>
> I'd start with the wheel cylinder as that's what was replaced. What are
> you using for brake fluid?  Some master cylinders that I've bought from
> Moss aren't compatible with DOT 5 - voids the warranty.  Don't know if
> that applies to their wheel cylinders or not.
>
> If you change the rubber hose, you ought to make sure the metal line is
> clear too.
>
> Cheers,
>
> Bob Haskell
> Austin Healey 3000 BN7/BT7 registrar
>
> On 7/6/21 11:34 AM, Healey wrote:
> > Hi Bob,
> >
> >  No, I didn't pull the new wheel cylinder apart before install (never
> > heard of that one before). The bleeding went fine, and the piston
> > obviously moves out ok - it's just the lack of retracting that is the
> > problem.
> >  So to confirm, noone thinks it's the hose (b/c the passenger side
> > works fine), correct?
> >
> > Thanks in advance
> >
> > On Monday, July 5, 2021, Bob Spidell <bspidell at comcast.net
> > <mailto:bspidell at comcast.net>> wrote:
> >
> >     Did you disassemble and lubricate the seals on the cyls before
> >     install? I just replaced several on my BN2, and forgot to, but
> >     when I checked they seemed to have some fluid in them, so may not
> >     be an issue. I'd pull the recalcitrant cylinder and see if there's
> >     anything wrong, the retract springs are pretty strong so the
> >     cylinder would have to really be stuck. FWIW, I've installed
> >     several of the 'cheapies' and not had an issue, and Tom Monaco
> >     told me they're fine.
> >
> >
> >     On 7/5/2021 3:37 PM, Healey wrote:
> >
> >          I had to replace a leaking, original wheel cylinder (drivers
> >         side) earlier. Everything went fine with the install &
> >         adjustment, except that on its inaugural run, it became
> >         quickly apparent that things were not right.
> >          Took the drum back off again, only to find that the
> >         cylinder was not retracting properly.
> >           Group wisdom from the internet says you need to replace the
> >         rubber pipe.No problem - except there is only 1 of these
> >         rubber brake pipes that goes into a T to feed both rear brakes
> >         - and the problem is ONLY with the driver's brake - the
> >         passenger side rear wheel cylinder retracts like a champ.
> >         Driver's side spring is ok btw.
> >          So what I don't understand is - if the inside of the rubber
> >         pipe was swollen, not letting fluid back through, wouldn't
> >         this affect both rear brakes, not just one of them?
> >
> >           Should I replace this one hose, or did I get a "bad" wheel
> >         cylinder from Moss? (yes, I ordered the cheaper aftermarket
> >         cylinder @ $14 as opposed to the TRW brand cylinder @ $70), or
> >         do I replace both? or?
> >
> >           Lastly, what is the min thickness of the rear shoes? Both
> >         are evenly worn & about the same thickness as the metal
> >         mounting plate underneath.
> >
> >           Thanks in advance,
> >
> >         Neil
> >
> >
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