Sudden Engine Failure

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Old 21 Nov 2006, 08:49 am   #1 (permalink)
Scott Schuckert
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Default Sudden Engine Failure

I don't know much yet, and I know you really can't tell - but any input?

1997 Camry 4-cyl, 150K, never had a problem since new and running fine.
Oil in crankcase and changes up to date.

Accelerating in traffic; BANG - major loss of power and a slight
rattling sound, but engine still running. No warning lights on dash,
smoke, leakage, etc. While pulling off, engine quietly stops - and will
not crank. Yellow check engine light.

Towed to local shop; says timing belt and other external appearances
OK, but engine cannot be manually turned and presumed seized.

Any theories as to what happened, and next step? (Other than getting a
new car...)

Thanks.
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Old 21 Nov 2006, 10:14 am   #2 (permalink)
BigJim
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Default Re: Sudden Engine Failure

turned a bearing or piston cracked or bent valve shaft you won't really know
until you open it up.
"Scott Schuckert" <not@aol.com> wrote in message
news:211120060949358285%not@aol.com...
>I don't know much yet, and I know you really can't tell - but any input?
>
> 1997 Camry 4-cyl, 150K, never had a problem since new and running fine.
> Oil in crankcase and changes up to date.
>
> Accelerating in traffic; BANG - major loss of power and a slight
> rattling sound, but engine still running. No warning lights on dash,
> smoke, leakage, etc. While pulling off, engine quietly stops - and will
> not crank. Yellow check engine light.
>
> Towed to local shop; says timing belt and other external appearances
> OK, but engine cannot be manually turned and presumed seized.
>
> Any theories as to what happened, and next step? (Other than getting a
> new car...)
>
> Thanks.



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Old 21 Nov 2006, 10:18 am   #3 (permalink)
Doctor J
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Default Re: Sudden Engine Failure


Are there any holes in the lower part of the block?


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Old 21 Nov 2006, 11:15 am   #4 (permalink)
Scott Schuckert
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Default Re: Sudden Engine Failure

In article <Doctor.J.2hmrzn@no-mx.forums.yourdomain.com.au>, Doctor J
<Doctor.J.2hmrzn@no-mx.forums.yourdomain.com.au> wrote:

> Are there any holes in the lower part of the block?


Heh, heh. Had a Ford do that once back in the 60's. No holes as far as
I can see after crawling under. There had been a very slight leak at
the pan gasket; there's a bit more oil scattered around than I'd
expected to see, but that may just be because I haven't looked
underneath lately. Crankcase is still full.

Local shop says nobody fixes engines or even bothers to diagnose them
anymore; just pull it and put in a used or rebuilt. Says $2k+ for used,
$3k+ for rebuilt.
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Old 21 Nov 2006, 11:19 am   #5 (permalink)
Daniel
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Default Re: Sudden Engine Failure

Scott Schuckert wrote:
> Any theories as to what happened, and next step? (Other than getting a
> new car...)

=============================
Engine failures are rare so if you like the rest of the car I'd be
looking for a used engine.
Perhaps piston pin clip loosened.

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Old 21 Nov 2006, 12:28 pm   #6 (permalink)
mack
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Default Re: Sudden Engine Failure


"Scott Schuckert" <not@aol.com> wrote in message
news:211120061215376575%not@aol.com...
> In article <Doctor.J.2hmrzn@no-mx.forums.yourdomain.com.au>, Doctor J
> <Doctor.J.2hmrzn@no-mx.forums.yourdomain.com.au> wrote:
>
>> Are there any holes in the lower part of the block?

>
> Heh, heh. Had a Ford do that once back in the 60's. No holes as far as
> I can see after crawling under. There had been a very slight leak at
> the pan gasket; there's a bit more oil scattered around than I'd
> expected to see, but that may just be because I haven't looked
> underneath lately. Crankcase is still full.
>
> Local shop says nobody fixes engines or even bothers to diagnose them
> anymore; just pull it and put in a used or rebuilt. Says $2k+ for used,
> $3k+ for rebuilt.


sounds like the local shop simply wants to sell a used or rebuilt engine.
that's like saying a doctor doesn't diagnose any more, he just does an
appendectomy for the hell of it. It may be that the timing belt has
slipped a notch or two through wear or looseness, and that would be the
first thing I'd look at. and then go deeper into diagnosis.


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Old 21 Nov 2006, 03:39 pm   #7 (permalink)
Scott Schuckert
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Default Re: Sudden Engine Failure

In article <12m6hb4oorc5g33@corp.supernews.com>, mack
<mackerel@dslextreme.com> wrote:

> sounds like the local shop simply wants to sell a used or rebuilt engine.
> that's like saying a doctor doesn't diagnose any more, he just does an
> appendectomy for the hell of it. It may be that the timing belt has
> slipped a notch or two through wear or looseness, and that would be the
> first thing I'd look at. and then go deeper into diagnosis.


Wasn't just the one guy who said that... Timing belt was my first
guess, but that appears to be OK - and would that keep the engine from
being manually turned?
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Old 21 Nov 2006, 04:22 pm   #8 (permalink)
m Ransley
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Default Re: Sudden Engine Failure

Loosen the spark plugs and try to turn it to be sure its frozen

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Old 21 Nov 2006, 11:57 pm   #9 (permalink)
bauz
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Default Re: Sudden Engine Failure

I am not an expert, but this is what happened to my sister:
The symptoms were similar to yours. Then the mechanics found that the
timing belt was broke. While trying to install a new belt they realized
that the cam shaft was seized. There was a rubbery piece of sealant that
probably fell off, and block the oil path up to the head. After replacing
the head with a used one, the car is running again.
Maybe the rattling sound that you heard was also the sound of the timing
belt teeth slipping over the seized cam shaft? - just a theory.

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Old 22 Nov 2006, 08:10 am   #10 (permalink)
Doctor J
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Default Re: Sudden Engine Failure


Could be broken bolt on the big end bearing


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