[Vwdiesel] Brakes?

[mark shepherd]

Does your vacuum pump have a spaceship on the side,[a diaphragm type] or is 
it a small felow with a pipe coming out of the top of  the lid?[Vane type. 
If the latter, then check your sump oil level. This can suffer if low. 
Almost indistructible otherwise.

 Older style can have a split diaphragm.

Also look for leak in pipe to booster

Mark


----- Original Message ----- 
From: "Joe" <joe at haasenpfeffer.com>
To: <vwdiesel at vwfans.com>
Sent: Thursday, March 11, 2010 11:02 PM
Subject: [Vwdiesel] Brakes?


>
> Greetings and salivations...
>
> I've got a brake question.  82 Rabbit 1.6 n/a diesel. I was coming back 
> from
> a long weekend trip (about 600 miles round-trip) and first discovered my
> brakes acting "not quite right" on one of the last rest areas on the
> interstate.  The best way I can explain it is to say it's like the vacuum
> assist just isn't assisting.  Damn near hit the curb as I was parking, as 
> I
> wasn't expecting it.  Later, I discovered that the braking "power" seems 
> to
> be related to engine RPM.  If the engine is running slow, I have to really
> mash on the brake pedal to stop... But it does stop.  Popped the hood 
> today,
> checked all the hoses I could see and nothing appears to be loose or
> damaged.  But I'm no expert.  I know this engine has a vacuum pump, which
> drives the brake booster amongst other things.  So where do I start to
> diagnose this?
>
> Thanks in advance,
>
> Joe
>
>
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