[V8] Engine Trouble (v6 - but still Audi)

[Jason Wilkerson]

Yeah, thats what I'm afraid of.  She says 'the light only blinked on for a second' - you always get a different story then what really happened.  I have already told her that more than likely the motor is toast - that way if I do find something simple that fixes it, it will be a pleasant suprise!

--- On Fri, 10/23/09, Seamus O'Carey <cheshirecatsbox at gmail.com> wrote:

> From: Seamus O'Carey <cheshirecatsbox at gmail.com>
> Subject: Re: [V8] Engine Trouble (v6 - but still Audi)
> To: V8 at audifans.com
> Date: Friday, October 23, 2009, 2:07 PM
> I  have a '93 90 with a 2.8L V6
> that has a nuked motor.  It was driven until
> the oil buzzer went off (and in this one the oil temp gauge
> maxed out).  I
> just pulled the intake manifold off a couple days ago and
> found that it had
> gotten hot enough in just a few seconds that both of the
> knock sensor
> housings had actually melted when the temp came up that
> high.  I'm guessing
> if it was that hot then there's some even worse things
> going on inside the
> motor, but I haven't had a chance to pull the rest of the
> motor apart yet.
> 
> Anyway, it's hardly scientific, but it looks like if the
> buzzer was going
> off, then it's quite possible that the motor could have
> been hot enough to
> do some major damage.
> 
> Seamus
> 
> On Fri, Oct 23, 2009 at 10:46 AM, Jason Wilkerson <wilke_jb at yahoo.com>wrote:
> 
> > Ok, Lets see if I can remember all the replies and
> answer them all.
> >
> > Scott P.:
> >  - Timing belt good - I know cause I checked that
> first - actually replaced
> > 10k ago.
> >  - Fuel pressure at the rail - not sure the
> injectors are firing and not
> > sure how to check?
> >  - I know it is getting spark - remember, it will
> run for a bit on starting
> > fluid, but only until it uses the starting fluid up -
> almost like it isn't
> > getting fuel - my thought on that was that was one of
> the following:  Either
> > the engine is so low on compression that it will only
> run on something more
> > volitile than gas, or it actually isn't getting fuel,
> but again, I know it
> > is getting to the rail.
> >
> > Scott D.:
> >  - I know what you mean about destroying the cams
> and crank - thats why I
> > can't understand why it won't run - at least for
> awhile until the knocking
> > gets too bad (if it is ruined).  I don't think
> the crank is ruined for the
> > reasons listed below.
> >
> > 7013885254:
> >  - It doesn't have a gauge for the oil pressure,
> but it does have a light
> > and warning buzzer.  I watched the light go out
> after I cranked for about 5
> > seconds.  Then I would leave the key on to see
> when the light would come
> > back on - it took a good while 10 seconds or so - that
> tells me that the
> > crank and cam journals aren't bleeding too bad. 
> At least that is my
> > experience.  This also makes me wonder if there
> is a safety system on this
> > car the cuts fuel if there is no oil pressure? 
> Any one have BTDT?
> >
> > I'm starting to wonder if this thing got hot enough in
> the head to cause
> > the valves to stick and then get bent.  If I look
> in the oil cap hole, the
> > inside of the motor is super cruddy.  I am going
> to do a compression check
> > this weekend, then may pull the valve covers to see if
> I can see if any
> > vavles are bent - looking at the lifter as the cam
> lobe isn't engaged.  I'll
> > see what I find there.  Thanks for all the help
> and suggestions - any other
> > ideas are much appreciated.
> >
> >   Thanks again,
> >              Jason
> >
> >
> >
> >
> >
> >
> >
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