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LT77 oil???

1K views 17 replies 0 participants last post by  Huw 
G
#1 ·
Just been reading Ashcroft transmissions tech stuff about this gearbox, they recommend Dexron ATF?? Is
this right, mines pissing EP90 out of every hole possible? I can tell it's EP due to colour & cat piss
smell?

Is this right or what?

Nige

--�
Subaru WRX (Annabel)

Landrover 110 County Station Wagon (Tyson)

'"Say hello to my little friend"
 
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#3 ·
On or around Fri, 12 Aug 2005 18:52:03 +0100, "Nige"
<nigel.inceBUGGEROFF@btinternet.com> enlightened us thusly:

>Just been reading Ashcroft transmissions tech stuff about this gearbox, they recommend Dexron ATF?? Is
>this right, mines pissing EP90 out of every hole possible? I can tell it's EP due to colour & cat piss
>smell?
>
>Is this right or what?
>


ATF is correct for the gearbox, EP90 for the transfer box.

You can also put SAE 75 synthetic gear oil in the main box, this is a touch
on the sticky side in winter when the 'box is cold, but OK once it's bee
running for 10 minutes or so.

main box plus cross-drilled transfer gear (no point in fitting one without
'tother) was about 600 notes when I got one. Dunno how it rated in quality
compared to Ashcroft. Have heard one or two disaster stories about
Ashcroft, but only one or two, and considering the number they probably
shift, that's not bad.
--
Austin Shackles. www.ddol-las.net my opinions are just that
"Nessun maggior dolore che ricordarsi del tempo felice nella miseria"
- Dante Alighieri (1265 - 1321) from Divina Commedia 'Inferno'
 
G
#4 ·
X-No-Archive: Yes
"Nige" <nigel.inceBUGGEROFF@btinternet.com> wrote in message
news:3m45u1F14tuffU1@individual.net...
> Just been reading Ashcroft transmissions tech stuff about this gearbox,
> they recommend Dexron ATF?? Is this right, mines pissing EP90 out of every
> hole possible? I can tell it's EP due to colour & cat piss smell?
> Is this right or what?


Ashcrofts certainly know their business, although I understood that current
thinking is MTF for LT77's, ATF as an alternative?

people seem to suggest www.difflock.com as the place for fluids.

regards

Mark
 
G
#5 ·
On Fri, 12 Aug 2005 18:52:03 +0100, "Nige"
<nigel.inceBUGGEROFF@btinternet.com> wrote:

>Just been reading Ashcroft transmissions tech stuff about this gearbox, they recommend Dexron ATF?? Is
>this right, mines pissing EP90 out of every hole possible? I can tell it's EP due to colour & cat piss
>smell?
>
>Is this right or what?
>
>Nige


Are you sure you are looking at the right bit?
I put EP90 in the transfer box and ATF in the gearbox, dates are in
the book.




.................................................................
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G
#6 ·
Nige wrote:

> Just been reading Ashcroft transmissions tech stuff about this gearbox,
> they recommend Dexron ATF?? Is this right, mines pissing EP90 out of every
> hole possible? I can tell it's EP due to colour & cat piss smell?
>
> Is this right or what?
>
> Nige
>
> --�
> Subaru WRX (Annabel)
>
> Landrover 110 County Station Wagon (Tyson)
>
> '"Say hello to my little friend"


The oil pump in the gearbox is unlikely to survive cold EP90.
Recommendations have varied over the years, but always thinner than EP90.
Different oils have been recommended to get best performance for gear
changing. The transfer case is recommended to have EP90, but is not very
fussy as long as it has oil of some kind in it.
JD
 
G
#7 ·
"JD" <jjd@SPAMLESS.com.au> wrote in message
news:42fd0c4d@dnews.tpgi.com.au...
> Nige wrote:
>
>> Just been reading Ashcroft transmissions tech stuff about this gearbox,
>> they recommend Dexron ATF?? Is this right, mines pissing EP90 out of
>> every
>> hole possible? I can tell it's EP due to colour & cat piss smell?
>>
>> Is this right or what?
>>
>> Nige
>>
>> --�
>> Subaru WRX (Annabel)
>>
>> Landrover 110 County Station Wagon (Tyson)
>>
>> '"Say hello to my little friend"

>
> The oil pump in the gearbox is unlikely to survive cold EP90.
> Recommendations have varied over the years, but always thinner than EP90.
> Different oils have been recommended to get best performance for gear
> changing. The transfer case is recommended to have EP90, but is not very
> fussy as long as it has oil of some kind in it.


hmm mine could possibly do with somthing better than atf it was nice with
fresh atf but it seemed to feel worse when the new oil was used
 
G
#8 ·
MVP wrote:
> On Fri, 12 Aug 2005 18:52:03 +0100, "Nige"
> <nigel.inceBUGGEROFF@btinternet.com> wrote:
>
>> Just been reading Ashcroft transmissions tech stuff about this
>> gearbox, they recommend Dexron ATF?? Is this right, mines pissing
>> EP90 out of every hole possible? I can tell it's EP due to colour &
>> cat piss smell?
>>
>> Is this right or what?
>>
>> Nige

>
> Are you sure you are looking at the right bit?
> I put EP90 in the transfer box and ATF in the gearbox, dates are in
> the book.


Thats what i thouight at first, i am gonna double check again tomorrow now you've made me think!!
 
G
#9 ·
"jOn" <nospamta@ntl-world.com> wrote in message
news:3m4h90F15djk1U1@individual.net...
>
> "JD" <jjd@SPAMLESS.com.au> wrote in message
> news:42fd0c4d@dnews.tpgi.com.au...
>> Nige wrote:
>>
>>> Just been reading Ashcroft transmissions tech stuff about this gearbox,
>>> they recommend Dexron ATF?? Is this right, mines pissing EP90 out of
>>> every
>>> hole possible? I can tell it's EP due to colour & cat piss smell?
>>>
>>> Is this right or what?
>>>
>>> Nige
>>>
>>> --�
>>> Subaru WRX (Annabel)
>>>
>>> Landrover 110 County Station Wagon (Tyson)
>>>
>>> '"Say hello to my little friend"

>>
>> The oil pump in the gearbox is unlikely to survive cold EP90.
>> Recommendations have varied over the years, but always thinner than EP90.
>> Different oils have been recommended to get best performance for gear
>> changing. The transfer case is recommended to have EP90, but is not very
>> fussy as long as it has oil of some kind in it.

>
> hmm mine could possibly do with somthing better than atf it was nice with
> fresh atf but it seemed to feel worse when the new oil was used
>


If you use ATF in the LT77 then you really need to change it every 6000
miles while a proper MTF will last at least double to 12000 miles. My
Defender has run for over 10,000 hours [about 130,000 miles with an average
of probably in excess of 10 gearchanges per mile] of heavy work with ATF at
every 10,000 miles early on [the change quality would deteriorate at
anything over 8000 miles] to running on Ford MT75 oil changed at every
20,000 miles in later years. Still changes as well as ever on its original
'boxes.

Huw
 
G
#10 ·
"Mark" <Markiehatesspam@notelespam2.fr> wrote in message
news:xn6Le.24073$hV3.8984@nntpserver.swip.net...
> X-No-Archive: Yes
> "Nige" <nigel.inceBUGGEROFF@btinternet.com> wrote in message
> news:3m45u1F14tuffU1@individual.net...
>> Just been reading Ashcroft transmissions tech stuff about this gearbox,
>> they recommend Dexron ATF?? Is this right, mines pissing EP90 out of
>> every hole possible? I can tell it's EP due to colour & cat piss smell?
>> Is this right or what?

>
> Ashcrofts certainly know their business, although I understood that
> current thinking is MTF for LT77's, ATF as an alternative?
>


You are right. On no account should EP90 be used in LT77 or later gearboxes.
Any MTF is better than ATF but don't worry about it. My fill for the last
ten years or more has been oil recommended for Ford manual gearboxes though
for some time now LR has recommended their own MT oil which is the same one
used in Rover and Honda manual gearboxes. Its viscosity is about the same as
ATF at around the same as SAE75w.
The transfer box used in Defender and Discovery is happy with anything
vaguely wet and slippery, from 10w/30 to EP90. The thinner the oil the less
drag.

Huw
 
G
#11 ·
Huw wrote:

>
> You are right. On no account should EP90 be used in LT77 or later gearboxes.
> Any MTF is better than ATF but don't worry about it. My fill for the last
> ten years or more has been oil recommended for Ford manual gearboxes though
> for some time now LR has recommended their own MT oil which is the same one
> used in Rover and Honda manual gearboxes. Its viscosity is about the same as
> ATF at around the same as SAE75w.


The viscosity of ATF is around SAE 20 or 25 and nowhere near 75.

--
EMB
 
G
#12 ·
"EMB" <embtwo@gmail.com> wrote in message
news:ddo761$mp9$1@lust.ihug.co.nz...
> Huw wrote:
>
>>
>> You are right. On no account should EP90 be used in LT77 or later
>> gearboxes. Any MTF is better than ATF but don't worry about it. My fill
>> for the last ten years or more has been oil recommended for Ford manual
>> gearboxes though for some time now LR has recommended their own MT oil
>> which is the same one used in Rover and Honda manual gearboxes. Its
>> viscosity is about the same as ATF at around the same as SAE75w.

>
> The viscosity of ATF is around SAE 20 or 25 and nowhere near 75.
>


Should I just laugh silently or put you out of your misery I wonder?

Huw
 
G
#13 ·
On or around Sun, 14 Aug 2005 21:45:22 +0100, "Huw"
<hedydd[nospam]@tiscali.co.uk> enlightened us thusly:

>> The viscosity of ATF is around SAE 20 or 25 and nowhere near 75.
>>

>
>Should I just laugh silently or put you out of your misery I wonder?
>


does feel stiffer on cold mornings, with synthetic 75 in, though, IME.
--
Austin Shackles. www.ddol-las.net my opinions are just that
0123456789112345678921234567893123456789412345678951234567896123456789712345
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G
#14 ·
On or around Sun, 14 Aug 2005 20:06:58 +0100, "Huw"
<hedydd[nospam]@tiscali.co.uk> enlightened us thusly:

>
>If you use ATF in the LT77 then you really need to change it every 6000
>miles while a proper MTF will last at least double to 12000 miles. My
>Defender has run for over 10,000 hours [about 130,000 miles with an average
>of probably in excess of 10 gearchanges per mile] of heavy work with ATF at
>every 10,000 miles early on [the change quality would deteriorate at
>anything over 8000 miles] to running on Ford MT75 oil changed at every
>20,000 miles in later years. Still changes as well as ever on its original
>'boxes.


unless it's been sorted, you're very lucky if the gearbox output
shaft/transfer input gear splines ain't worn. Anything before about 1997
suffers from this, IIRC. The one I took out of my disco (at about 100K
miles, ISTR) was very worn, mind, it was also very clonky, the TDi disco
(M95) has much less clonk at similar mileage.

--
Austin Shackles. www.ddol-las.net my opinions are just that
0123456789112345678921234567893123456789412345678951234567896123456789712345
1 weebl: What's this? | in recognition of the fun that is weebl and bob
2 bob: it a SigRuler! | check out the weebl and bob archive:
3 weebl: How Handy! | http://www.weebl.jolt.co.uk/archives.php
 
G
#15 ·
"Austin Shackles" <austinNOSPAM@ddol-las.net> wrote in message
news:hnl0g156gqhkhej3rgl1rb6g3oko289qfv@4ax.com...
> On or around Sun, 14 Aug 2005 20:06:58 +0100, "Huw"
> <hedydd[nospam]@tiscali.co.uk> enlightened us thusly:
>
>>
>>If you use ATF in the LT77 then you really need to change it every 6000
>>miles while a proper MTF will last at least double to 12000 miles. My
>>Defender has run for over 10,000 hours [about 130,000 miles with an
>>average
>>of probably in excess of 10 gearchanges per mile] of heavy work with ATF
>>at
>>every 10,000 miles early on [the change quality would deteriorate at
>>anything over 8000 miles] to running on Ford MT75 oil changed at every
>>20,000 miles in later years. Still changes as well as ever on its original
>>'boxes.

>
> unless it's been sorted,


Owned from new.

you're very lucky if the gearbox output
> shaft/transfer input gear splines ain't worn. Anything before about 1997
> suffers from this, IIRC. The one I took out of my disco (at about 100K
> miles, ISTR) was very worn, mind, it was also very clonky, the TDi disco
> (M95) has much less clonk at similar mileage.
>


Plenty of clonking. Not worried. Been like that for years. Also has, what I
assume to be, a chipped tooth on reverse which is equally unworrying.
In my opinion the use of low viscosity oil in the transfer box over its life
[10w/30 super universal mostly] and its regular use in low ratio might have
some bearing on its long life.

Huw
 
G
#16 ·
"Austin Shackles" <austinNOSPAM@ddol-las.net> wrote in message
news:cll0g1tp4o7tuc9s7be2mivr0mjr41vg2d@4ax.com...
> On or around Sun, 14 Aug 2005 21:45:22 +0100, "Huw"
> <hedydd[nospam]@tiscali.co.uk> enlightened us thusly:
>
>>> The viscosity of ATF is around SAE 20 or 25 and nowhere near 75.
>>>

>>
>>Should I just laugh silently or put you out of your misery I wonder?
>>

>
> does feel stiffer on cold mornings, with synthetic 75 in, though, IME.


I use the MTF like I said and the change quality is superior at all
temperatures. As far as I can tell the cold viscosity is as for ATF.
You and I both know that ATF is near SAE75W transmission oil but EMB
apparently knows different. Maybe if he asked it would be explained to him.

Huw
 
G
#17 ·
On or around Mon, 15 Aug 2005 10:14:24 +0100, "Huw"
<hedydd[nospam]@tiscali.co.uk> enlightened us thusly:

>Plenty of clonking. Not worried. Been like that for years. Also has, what I
>assume to be, a chipped tooth on reverse which is equally unworrying.
>In my opinion the use of low viscosity oil in the transfer box over its life
>[10w/30 super universal mostly] and its regular use in low ratio might have
>some bearing on its long life.


hmmmm. Having seen what mine was like...

eventually, and probably at the most inconvenient place it can find, it's
likely that the splines will fail, resulting in no drive.
--
Austin Shackles. www.ddol-las.net my opinions are just that
Too Busy: Your mind is like a motorway. Sometimes it can be jammed by
too much traffic. Avoid the jams by never using your mind on a
Bank Holiday weekend.
from the Little Book of Complete B***ocks by Alistair Beaton.
 
G
#18 ·
"Austin Shackles" <austinNOSPAM@ddol-las.net> wrote in message
news:va01g15hc99lm7if7n6aqn4mtl2b2bis70@4ax.com...
> On or around Mon, 15 Aug 2005 10:14:24 +0100, "Huw"
> <hedydd[nospam]@tiscali.co.uk> enlightened us thusly:
>
>>Plenty of clonking. Not worried. Been like that for years. Also has, what
>>I
>>assume to be, a chipped tooth on reverse which is equally unworrying.
>>In my opinion the use of low viscosity oil in the transfer box over its
>>life
>>[10w/30 super universal mostly] and its regular use in low ratio might
>>have
>>some bearing on its long life.

>
> hmmmm. Having seen what mine was like...
>
> eventually, and probably at the most inconvenient place it can find, it's
> likely that the splines will fail, resulting in no drive.


Without doubt. But I have been expecting this for the last dozen years or so
and it ain't happened yet despite towing the odd overload. If it happens, it
happens, and I will make a rational choice as to whether to repair or scrap
the vehicle at that time. Until then its business as usual and I ain't going
to hold my breath until it goes bang.

Huw

Huw
 
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