[Vwdiesel] squishy brakes?

[mark shepherd]

Slow sinking does signify a slight leak, but the running out of pedal power, 
is a sign that the vaccuum pump is not replenishing vaccuum fast enough. On 
the Mk2  setup that could be either low oil in sump , or faulty [chipped or 
sticky] vanes  in the pump. Attach a vac gauge in 'boost/servo' line.

Mark


----- Original Message ----- 
From: "Will Taygan" <william at taygan.com>
To: <vwdiesel at vwfans.com>
Sent: Tuesday, August 03, 2010 7:00 PM
Subject: [Vwdiesel] squishy brakes?


>
> I'm wondering if I have a vacuum leak?  94' 1.6TD FrankenJetta
> (originally gas).  Pedal sinks if pushed slowly.  Works great if pushed
> quickly.  Lots of pumping leads to a nice hard pedal but with very very
> little braking power.
>
> Bled rear brakes, no effect (although the right parking brake cable was
> stuck on - I've got new cables on order, although i suppose it *could*
> be that rebuilt caliper I put on last year)  Front brake bleeders are
> stuck/rounded.  Power lock vacuum is working fine.  Couldn't find any
> obvious leaks between the vac pump and the brake booster.  I put some
> RTV silicone around the grommet at the brake booster, just in case that
> might help.
>
> Ideas?
>
> Thanks,
>
> Will in Alaska.
>
> P.S. I'm thinking about just pulling this engine and putting it in the
> '82 diesel Westy, but I gotta figure out how much work that actually is
> first..  Winter is coming!
>
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