[T2] Rear brake problem, brakes lock when braking

[Daniel Martinelli]

Update: New proportioning valve, rear brake shoes, brake drums and hoses
replaced. No success. Next up: Front hoses

On Sun, 20 Jan 2019 at 07:30, Al Brase <alribee at gmail.com> wrote:

> I think the proportioning valve needs to be positioned correctly.
>
>
> On Sat, Jan 19, 2019 at 7:07 PM c.dreike <c.dreike at verizon.net> wrote:
>
> > Could the new proportional valve have a problem?  I know that adjustable
> > proportional valves are available.
> >
> > Chris
> >
> > On 1/19/2019 5:28 AM, Daniel Martinelli wrote:
> > > Yes, they do look fine but we decided to refurbish them, as we have the
> > > parts and see what happens
> > >
> > > Daniel
> > >
> > >
> > > On Sat, 19 Jan 2019 at 02:37, Robert Camacho <bcoldpro at aol.com> wrote:
> > >
> > >> How old are the rear brake shoes? Have those been visually inspected?
> > >>
> > >>
> > >> -----Original Message-----
> > >> From: Daniel Martinelli <daniel.martinelli at gmx.ch>
> > >> To: Type2 list <type2 at type2.com>
> > >> Sent: Fri, Jan 11, 2019 8:33 am
> > >> Subject: [T2] Rear brake problem, brakes lock when braking
> > >>
> > >> Dear all
> > >>
> > >> A friend of mine has a weird problem with his T2b camper rear brakes.
> > When
> > >> braking hard, on the road, the rear brakes lock up. We replaced the
> > front
> > >> disk brake pads to no avail, checked the caliper pistons and they are
> > fine.
> > >> Tires are almost new and correctly inflated.
> > >>
> > >> On the test stand, when tested independently the rear and front brakes
> > work
> > >> perfectly.
> > >>
> > >> We thought it could be the proportional valve, replaced it but the
> > problem
> > >> persists.
> > >>
> > >> Sooo, apart from the proportional valve, what could influence brake
> > >> distribution from front to back? We are at a loss here.
> > >>
> > >> Any thoughts?
> > >>
> > >> Thanks a lot
> > >>
> > >> Cheers!
> > >>
> > >> Daniel
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> > >>
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