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Center differential dead ( '02 WRX Wagon )

  
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Carl 1 Lucky Texan

External


Since: Jan 20, 2004
Posts: 989



(Msg. 16) Posted: Wed Mar 22, 2006 11:55 pm
Post subject: Re: Center differential dead ( '02 WRX Wagon ) [Login to view extended thread Info.]
Archived from groups: alt>autos>subaru (more info?)
Black WRX wrote:
> In article <W1aUf.2904$4L1.1757@newssvr11.news.prodigy.com>,
> MN DeleteThis @sbcglobal.net says...
>
>>"MN" <MN DeleteThis @sbcglobal.net> wrote in message
>>news:Mu9Uf.3950$tN3.1742@newssvr27.news.prodigy.net...
>>
>>Should have read:
>>
>> Was the WRX floored frequently or _E VE R_ used for towing
>> especially on rough surfaces which produce jerking motion? - this
>> can put a lot of stress on gears and badly undermine both a differential
>> and a transmission.
>>
>>MN
>>
>>
>>
>
>
> Well, I wasn't granny behind the wheel but none of my driving was so
> crazy to ruin the car. No racetrack shenanigans, no drop-clutch...etc.
> After all I bought it new to last some time and always tried not to
> abuse it. My clutch is still in perfect shape after 65k. Only brake pads
> were changed once at about 35K (it's about time to change them again)
> and tires twice at 30K and again recently. Seems like I just had a bad
> luck...Since I started driving, some 15 years ago, all my cars were mid-
> level performance cars. I had Lancia Delta Integrale long ago and that
> baby was really abused (young&crazy) but never had such fatal
> problem....

Typically, a tire issue would be involved in the premature failure of
the CD. frequent heavy cargo without increasing rear tire pressure,
mixing in 1 or 2 new tires with older, slick tires, running on a low or
'donut' tire, possibly some maintanece confusion about fluids - I've
read of that happening. very odd.

I DO NOT feel extended highway driving with all other factors being
positive could lead to this. I believe a Subaru Forester even holds the
world 'endurance' record.

Carl



--
to reply, change ( .not) to ( .net)

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user1810

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Since: Jan 12, 2005
Posts: 17



(Msg. 17) Posted: Thu Mar 23, 2006 3:55 am
Post subject: Re: Center differential dead ( '02 WRX Wagon ) [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
"Carl 1 Lucky Texan" <alckytxn.TakeThisOut@swbell.not> wrote in message
news:IopUf.58585$H71.25991@newssvr13.news.prodigy.com...

> I DO NOT feel extended highway driving with all other factors being
> positive could lead to this. I believe a Subaru Forester even holds the
> world 'endurance' record.

If its high-speed hours upon hours I think it can have
a significant detrimental effect. Try touching the rear
differential after driving for half an hour, or so, at 70mph.
Its hot, very, very, hot, I might add. If you happen to
go more than 70 mph then the effect is even worse.
Same goes for the front diff, although I have never
touched the front. No wonder Subaru put cooling fins
on these two parts.

MN

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mulder1

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Since: Jan 13, 2005
Posts: 127



(Msg. 18) Posted: Thu Mar 23, 2006 11:03 am
Post subject: Re: Center differential dead ( '02 WRX Wagon ) [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
>> Have you (or previous owner if this applies) done any extensive,
>> summer-time high speed driving? What about dirty or
>> old/never changed differential fluid? Or worse, low fluid levels?
>> This one can surely kill a differential long before 100k miles.
>>
>> MN
>
>Hmm...on a daily basis I drive approx. 30 miles to work and another 30
>back. That's about 2 x 45 minutes of constant drive on highway. Speed is
>between 60-80mph and even turbine is idle as I drive in 5th gear at
>around 2500-3000 rpm. That should produce minimal load on any car
>segment. If differential fluid caused a problem I have to thank service
>personell. Since I bought this car back in '01 I didn't miss a single
>oil change or any other scheduled service as suggested by manufacturer.
>I even keep service history on MySubaru website. Have to check if tranny
>fluid was ever changed.

FYI both the center and rear LSD differentials on the WRX are
viscous-coupling type units and are sealed. They do not have any
contact with the gear oil/fluid and any contaminants in the fluid will
not reach the actual differential. About the only thing that will kill
these prematurely, aside from a defect or abusive driving, is unequal
rolling circumference between the wheels caused by uneven tire wear or
different size/brand tires being mixed on the same vehicle.
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Black WRX

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Since: Oct 14, 2005
Posts: 20



(Msg. 19) Posted: Fri Mar 24, 2006 7:55 pm
Post subject: Re: Center differential dead ( '02 WRX Wagon ) [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
In article <aosUf.62410$dW3.32536@newssvr21.news.prodigy.com>,
MN.RemoveThis@sbcglobal.net says...
> "Carl 1 Lucky Texan" <alckytxn.RemoveThis@swbell.not> wrote in message
> news:IopUf.58585$H71.25991@newssvr13.news.prodigy.com...
>
> > I DO NOT feel extended highway driving with all other factors being
> > positive could lead to this. I believe a Subaru Forester even holds the
> > world 'endurance' record.
>
> If its high-speed hours upon hours I think it can have
> a significant detrimental effect. Try touching the rear
> differential after driving for half an hour, or so, at 70mph.
> Its hot, very, very, hot, I might add. If you happen to
> go more than 70 mph then the effect is even worse.
> Same goes for the front diff, although I have never
> touched the front. No wonder Subaru put cooling fins
> on these two parts.
>
> MN
>
>
>

If this statement is really truth, I shouldn't be even making longer
highway trip with this car but only use it for frocery shopping. I'm not
buying this. That would make a really bad spot on Subaru's marketing
campaign. I find them really reliable and well made vehicles despite
this problem I recently had. Let's call it plain bad luck issue. Maybe I
should visit Vegas and find out if I'll do better in gambling..Smile
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