Wouldn't these issues have appeared before 120K miles ?
"David Geesaman" <dgeesamanNOSPAM@[EMAIL PROTECTED]
> wrote in message
news:fq2ij501qd9@[EMAIL PROTECTED]
> codifus wrote:
>> On Feb 25, 7:33 pm, David Geesaman <dgeesamanNOS...@[EMAIL PROTECTED]
>
>> wrote:
>>> Tom Yakulis wrote:
>>>> Hi all,
>>>> I drive a '99 Se 5speed that just hit 120K miles. I was wondering
what
>>>> parts
>>>> typically fail and should be replaced around this mileage.
>>>> Thanks
>>> First, do the 60k maintenance again:
>>> - drain/replace coolant
>>> - new belts
>>> - new OEM platinum plugs
>>> - new fuel filter
>>> - replace gear oil (use Amsoil MTG or Redline MT-90 - both are
synthetic
>>> GL-4 75w-90 oils)
>>>
>>> Definitely get your transmission inspected. The 4th gen 5 speeds are
>>> notorious for having problems with differential carrier bearing wear.
A
>>> tranny shop can find it pretty quickly (they just grab the driver side
>>> axle end and see if the diff moves within the tranny housing).
Nissan's
>>> original transmission assembly did not ****m most of these trannys
>>> properly, and depending on how badly the bearings were set is how long
>>> the transmission will last. If your bearings are wearing too fast you
>>> want to catch it early, take it to a manual transmission specialist,
and
>>> have them re-****m the diff during the rebuild. If you procrastinate
the
>>> gears/shafts will run misaligned and develop uneven wear and you'll
>>> stand much greater risk of sudden failure. I say all this about the 5
>>> speed trannys because I've rebuild over a dozen of them and there are
>>> more every day.
>>>
>>> There are other things like oil seals and valve cover gaskets that can
>>> develop minor oil leaks. Just keep an eye out for that - many maximas
>>> go a much longer time than 120k without these leaks and since the
leaks
>>> are generally harmless there is no need IMHO to get preventive about
it.
>>>
>>> Dave
>>
>> I've experienced this 1st hand in my 98 5-speed. The tranny didn't
>> fail, just got incredibly noisy. When I replaced the clutch at 140K
>> miles, I also replaced the differential bearings and all was good.
>>
>> Was the issue fixed in the 2000 thru 2001 5-speed manual trannies? I
>> remember the Nissan brochure boasting stronger gears in the manual
>> tranny compared to the 99s and below.
>>
>>
>> CD
>
> I only know of one difference between the 95-99 gears and the 00-01 5
> speed gears: slightly modified oil grooving. Perhaps they improved the
> material a little bit, I dunno. The shafts are definitely the same. I
> haven't rebuilt enough of the 00-01's to determine if they were built
> properly, but the couple I've done were correct.
>
> One well-regarded internet source found that when he redid his diff
> bearings that he needed a different set of bearing ****ms. Assuming his
> housings hadn't warped, his postulation that the factory set endplay
wrong
> is a valid one.
>
> But I think it goes beyond that. My experience rebuilding 95-99 5
speeds
> has resulted in a large pile of diff bearing ****ms in just 3 sizes.
I've
> never found any other ****m size in a stock tranny, although when I
rebuild
> them the ****m sizes I use end up all over the tolerance range. (There
are
> over a dozen ****m sizes). My hypothesis, which will never be known for
> sure, is that the original tranny builders did not have the full range
of
> ****m sizes onhand to accurately set the diff bearing endplay. So if you
> were lucky your tranny required the ****m sizes that were on hand. If
you
> were unlucky your tranny needed a much different ****m size and it left
the
> factory with incorrect endplay setting, doomed to die a premature death.
> Some trannys died within the factory warranty, but most lasted just long
> enough to die out of warranty and within the car's typical life.
>
> Most rebuilders will just re-use the ****ms and not remeasure. They
aren't
> aware of this endplay setting problem, because most trannys are built
> right in the first place. Most customers don't want to wait the extra
> days to get the correct ****m size from Nissan, and it will easily
outlast
> the 6 month or 12 month rebuilders warranty. I always measure until I'm
> confident I have the endplay within .001", and use the exact recommended
> ****m size. To avoid delays I keep almost every ****m size on hand.
(this
> is only viable because I rebuild 95-01 trannys almost exclusively)
>
> Dave
>
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