Oh noooo, sudden Pentosin leak ...

Kneale Brownson knotnook at traverse.com
Mon Apr 22 09:41:05 EDT 2002

Both of my sudden big leaks of Pentosin (one 200q20v, one V8) have involved
the center seals on the pump failing.  Both basically emptied the reservoir
in 5-10 miles of driving.  Both occurred after long histories of really
gradual leaks.

That said, there ARE two high pressure lines:  the one to the rack and the
one to the "bomb".   Either can develop significant leaks rapidly, but it's
usually pretty obvious where the oil is coming from when it's a hose source.

When the pump leaks a lot,  the pulley/belt movements seem to send the oil
all over the driver side of the engine compartment, making it difficult to
determine the oil source.

At 08:27 PM 04/21/2002 -0700, Scalmanini Steve wrote:

>Is this Murphy's law or what?
>I rebuilt one of my Bose amps just yesterday with
>success, today something else broke.
>Drove ~ 40 miles this morning during which the brake
>warning lamp started to flicker, steadily more so
>during the last 30 minutes until it remained on
>steadily.  I arrived at my destination to the smell of
>burning Pentosin, which was down over half way.  Then
>it sat for a few hours and leaked some more.
>Does anyone know what can cause a sudden largel leak
>like this?  The hydraulic pump is just a year old,
>from Blau, and the high pressure hose was replaced a
>year of so before then.  When they each went out in
>the past they caused slow leaks, not like this
>Any words of wisdom/experience before I try to limp to
>my mechanics tomorrow?
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