Date: Sat, 27 Apr 2002 22:11:25 -0500
Reply-To: Andrew Bell <andrewbell@QWEST.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Andrew Bell <andrewbell@QWEST.NET>
Subject: Re: 1.9L exhaust system comments
Content-Type: text/plain; charset=us-ascii; x-mac-type="54455854";
x-mac-creator="4D4F5353"
I wish I could agree with you about neglect and abuse or mis-use, but these
(or some, at least) were pampered 1.9's and 2.1's... regularly maintained
and in some cases, exploding after an few hours of 60 MPH cruising with the
cruise control on... fall weather... no loads...
AB
Stan Wilder wrote:
> Over revving the engine too many times.
> The result of long term abuse or neglect.
>
> Stan Wilder
> 83 Air Cooled Westy
> -----------------------------------------
> Here is my question about this: I have seen dozens of broken VW cases
> where
> the rod/piston, whatever fails and explodes through the side of the
> block.
> Why? What failed? Did the crankshaft flex? Did an oil galley fail and a
> part
> seized? Did something get too hot? What could prevent this in hindsight?
>
> AB
> On Sat, 27 Apr 2002 19:06:56 -0500 Andrew Bell <andrewbell@QWEST.NET>
> writes:
> > SpaceKommander wrote:
> >
> > > Anyway. What's this talk of inferior and weak & flexy crankshafts?
> > Due to
> > > many reasons - flow restrictions and ECU cutoff - the engine won't
> > rev past
> > > 5,500 RPM anyway - and I've never heard watercooled VW engines
> > having a
> > > common failure of throwing a rod or breaking a crankshaft or
> > wearing out
> > > the main bearings due to "crankshaft flex." I think the lower end
> > is almost
> > > bulletproof. I have over 200,000 miles on my 1.9L and usually rev
> > it up
> > > near 5,000 RPM before each shift - and the previous owner did same
> > and
> > > cruised the highways of Kansas for hours at 4,500 RPM. Kansas
> > isn't a small
> > > state. 4 hours each weekend at 4,500 RPM should rule out any
> > "crank flex"
> > > problems. OK, if you are some yahoo with Dellorto 42 IDAs and open
> > headers
> > > trying to turn 7,500 RPM then maybe you have a valid point.
> > >
> > > Comments? Boston Bob? Ken? How many wasserleakers are replaced due
> > to
> > > broken cranks or connecting rods? I'm sure there are some, just
> > don't think
> > > it's the primary reason for engine replacement. I think if VW had
> > done a
> > > proper job with the heads (sleeved steel inserts in an alloy
> > block) the
> > > engines would routinely turn a quarter of a million miles with no
> > problems.
> >
> > Here is my question about this: I have seen dozens of broken VW
> > cases where
> > the rod/piston, whatever fails and explodes through the side of the
> > block.
> > Why? What failed? Did the crankshaft flex? Did an oil galley fail
> > and a part
> > seized? Did something get too hot? What could prevent this in
> > hindsight?
> >
> > AB
> >
>
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