97 Camry threw a rod

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Old 02 Nov 2004, 08:09 am   #1 (permalink)
Dra05
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Default 97 Camry threw a rod

Just bought a 97 Camry from my folks. 56,000 miles, well maintained,
in almost perfect condition. Got about 2 hours down the road and it
threw a rod. The engine is ruined and will have to be replaced,
according to the mechanic.

He was baffled as to why this would happen to such a reliable,
well-maintained, low mileage car. The only thing he found was that my
folks had been using Prompto to change their oil. He suggested that
sometimes Prompto puts in the wrong oil filter. Would this cause a rod
to blow?? There was no apparent oil leaking out, and the oil level was
actually above the full line.

Anybody got any ideas?
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Old 02 Nov 2004, 08:22 am   #2 (permalink)
badgolferman
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Default Re: 97 Camry threw a rod

Dra05 wrote:
> Just bought a 97 Camry from my folks. 56,000 miles, well maintained,
> in almost perfect condition. Got about 2 hours down the road and it
> threw a rod. The engine is ruined and will have to be replaced,
> according to the mechanic.
>
> He was baffled as to why this would happen to such a reliable,
> well-maintained, low mileage car. The only thing he found was that my
> folks had been using Prompto to change their oil. He suggested that
> sometimes Prompto puts in the wrong oil filter. Would this cause a rod
> to blow?? There was no apparent oil leaking out, and the oil level was
> actually above the full line.
>
> Anybody got any ideas?


I bought a 97 Camry 4 with 60K miles two years ago from the dealer. A
few days later I noticed blue smoke in the morning startups. I took it
back under dealer warranty and they overhauled the engine with new valve
stem seals and rod bearings. It's just about to turn 100K miles and the
engine has been OK since.


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Old 02 Nov 2004, 11:28 am   #3 (permalink)
m Ransley
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Default Re: 97 Camry threw a rod

Threw a rod you mean it broke, right, or it just makes noise. Did you
open to see if it really needs replacing. Was there the correct amount
of oil in it.

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Old 03 Nov 2004, 06:34 am   #4 (permalink)
pheasant
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Default Re: 97 Camry threw a rod



"Dra05" <bacostamd@yahoo.com> wrote in message
news:804a4d3f.0411020609.41e1df0e@posting.google.c om...
> Just bought a 97 Camry from my folks. 56,000 miles, well maintained,
> in almost perfect condition. Got about 2 hours down the road and it
> threw a rod. The engine is ruined and will have to be replaced,
> according to the mechanic.


> Anybody got any ideas?


Well; it's a mechanical device. Crap happens. It can happen to any
vehicle at any time. By buying something that has a good track record you
decrease your chances of anything happening, but individually any thing
goes. Kinda like playing the ponies, bet on a proven one.

Sad to hear, but your only option is to replace and move on.

Our daughter has a 97 XLE at college with 110K, have fingers crossed it'll
last til graduation, then the upkeep is hers. (she'll dump the car, hope I
get first dibs at buying it back from her)
Does use a quart of oil every 1500 miles but she drives 85 for hours at a
time, and for an engine with that many miles that gets pushed like that,
Daddy is still one happy camper. (perfectly normal in my book)

--
Four boxes protect our freedom: the soap box, the
ballot box, the jury box, and the cartridge box.


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Old 16 Nov 2004, 02:41 pm   #5 (permalink)
Jason James
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Default Re: 97 Camry threw a rod


"Dra05" <bacostamd@yahoo.com> wrote in message
news:804a4d3f.0411020609.41e1df0e@posting.google.c om...
> Just bought a 97 Camry from my folks. 56,000 miles, well maintained,
> in almost perfect condition. Got about 2 hours down the road and it
> threw a rod. The engine is ruined and will have to be replaced,
> according to the mechanic.
>
> He was baffled as to why this would happen to such a reliable,
> well-maintained, low mileage car. The only thing he found was that my
> folks had been using Prompto to change their oil. He suggested that
> sometimes Prompto puts in the wrong oil filter. Would this cause a rod
> to blow?? There was no apparent oil leaking out, and the oil level was
> actually above the full line.
>
> Anybody got any ideas?



Sudden engine failure of this type is unusual but has happened. The reason
the rod broke could be:

lack of lubrication (tho a lot of noise would precede the failure)

fatigued bigend bearing cap retaining bolt which broke (can happen when
reused a few times or has manufacturing fault-cracked)

Very high oil-level in sump ( the crankshaft slaps the oil causing crank and
possibley rod breakage)

"spun' rod bearing (bearing loses its locating tangs which stop it turning
in the rod)


Jason


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Old 17 Nov 2004, 06:33 am   #6 (permalink)
Philip
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Default Re: 97 Camry threw a rod

Jason James wrote:
> Sudden engine failure of this type is unusual but has happened. The
> reason the rod broke could be:
>
> lack of lubrication (tho a lot of noise would precede the failure)
>
> fatigued bigend bearing cap retaining bolt which broke (can happen
> when reused a few times or has manufacturing fault-cracked)
>
> Very high oil-level in sump ( the crankshaft slaps the oil causing
> crank and possibley rod breakage)


BZZZZZZT. Never happens. You cannot break a connecting rod or any portion
of the connecting rod by simply over filling the crankcase. Steel is a
whole lot harder than oil in a pan.

> "spun' rod bearing (bearing loses its locating tangs which stop it
> turning in the rod)
>
>
> Jason


BZZZZZT. The "tangs" (as you call them) do NOT lock the bearing shells into
the bearing saddle. They are there simply to index the bearing in the
saddles so that any oil holes line up correctly. Bearings are held in
place by being "crushed" into the saddles. This is why you do NOT reuse
bearing shells once they've been torqued down.
--

-Philip


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Old 20 Nov 2004, 03:47 pm   #7 (permalink)
Jason James
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Default Re: 97 Camry threw a rod


"Philip" <1chip-state1@earthlink.net> wrote in message
news:syHmd.1204$Tq6.138@newsread3.news.pas.earthli nk.net...
> Jason James wrote:
> > Sudden engine failure of this type is unusual but has happened. The
> > reason the rod broke could be:
> >
> > lack of lubrication (tho a lot of noise would precede the failure)
> >
> > fatigued bigend bearing cap retaining bolt which broke (can happen
> > when reused a few times or has manufacturing fault-cracked)
> >
> > Very high oil-level in sump ( the crankshaft slaps the oil causing
> > crank and possibley rod breakage)

>
> BZZZZZZT. Never happens. You cannot break a connecting rod or any

portion
> of the connecting rod by simply over filling the crankcase. Steel is a
> whole lot harder than oil in a pan.


Hmmmm,.....I dont agree on this point,..Phil. If an engine has been badly
overfilled the crank at high revs will find hitting the oil like hitting a
piece of metal. You need time for the oil to displace. The other factor as
you probably know, is aeration of the oil due the continual stirring....

> > "spun' rod bearing (bearing loses its locating tangs which stop it
> > turning in the rod)
> >
> >
> > Jason

>
> BZZZZZT. The "tangs" (as you call them) do NOT lock the bearing shells

into
> the bearing saddle. They are there simply to index the bearing in the
> saddles so that any oil holes line up correctly. Bearings are held in
> place by being "crushed" into the saddles. This is why you do NOT reuse
> bearing shells once they've been torqued down.


Yet in some drag-motors and the like, an addition tang is used to help
prevent spinning.....

>
> -Philip
>
>



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