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2nd t case in duals overheating

Tech talk for Hilux

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2nd t case in duals overheating

Post by 83 lux »

the second case in my dual cases is overheating
so bad infacted that the shifter is red hot to touch
i have pull it out of the car to check the stlye of t-case and it is the single spine type
please help
HOOLAY Wish i could buy boggers for my DH bike
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Post by hophoar »

only thing I can think of is are the oil tubes setup correctly ?
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Post by 83 lux »

i have not touch this t-case and i am not the only person that this is happening too Toymad and bascketcase have the same problem
HOOLAY Wish i could buy boggers for my DH bike
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Post by 2car »

There's excessive friction in there somewhere.
74 FJ40, 307, Hilux DBC, 35 Claws, welded rear.

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Post by 83 lux »

that what i thought but how do i fix the problem
anyone?
HOOLAY Wish i could buy boggers for my DH bike
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lux

Post by humphey »

83 lux wrote:that what i thought but how do i fix the problem
anyone?
yea buy a cruiser :finger: :finger: :finger: :D
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Post by RV80 »

what about running a hose between the filler
plugs of both cases?
www.bolsys.com.au
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Post by cplux »

I think mine too has a simialr problem, not so much hot to touch but the oil seems to get really warm and runny, so much so it spalshes up and flows out the shifter hole. Going to try a heavier grade oil ATM it is 75w90 going to try 80w90. I do however need to change one of the bearings to a better quality one as i neglected to do this when installing my duals in a hurry.
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Post by De-lux »

you need some lube in there...






hehehehe ;)
indubitably
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Post by MissDrew »

Maybe all the oil is going to the front case. 2 mates of mine had their own adaptors made up about 8 years ago and they had that problem to start with. They fixed it by putting a tube between both cases off the filler plugs.

Easy way to check is after going for a run and the case has got hot remove the filler plug on the front case and see if oil comes out of it, if it does then it is to full and the rear case must be to low.
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Post by 83 lux »

there is no filler on the front case is there?
the aa aptor. has a drain plug thou put the front case has nothing
but i see what you are getting at and i will look at that
thanks
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Post by spazbot »

did you put oil into the front case ??
ive been told you have to take the inspection plate off and poor some in to make sure its lubed
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Post by Tazz »

What brand of adapter is it?
Brothers got Marlin Crawler twin adapter in his suzi and it doesnt get hot.
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Post by MissDrew »

83 lux wrote:there is no filler on the front case is there?
I think you are correct and yes I do think they fill the front case via the shifter hole by removing the shifter
They must have had a hole drilled and taped in the front casing for the hose (I`d have to ask to them to beable to give a 100% answer for both those things)
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Post by RUFF »

The AA and the Marlin case both have an oil gallery that feeds both cases. There is no need to run an external hose or fill the front case from the top.

My AA never got that hot that i noticed any problems.
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Post by MissDrew »

Ruff I`m talking about the adaptors that my mates had made localy about 8 years ago, this was back when marlins were starting to become commonish in the states.
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Post by RUFF »

Yeah i realised that as well.
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Post by basketcase »

RUFF wrote:The AA and the Marlin case both have an oil gallery that feeds both cases. There is no need to run an external hose or fill the front case from the top.

My AA never got that hot that i noticed any problems.


Did you grind the end off your imput shaft?? In one set of instructions I found it said to do that.
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Post by hypo »

check oil levels coz i got an AA adapter and i have only ever filled it up from the rear coz there is oil passage between both cases.

mine doesnt get hot at all even after drivin it 2hrs on freeway,

maybe u guys need 2 pull the rear case apart and check it out maybe the oil passages r blocked or some of the bearings r rooted ??
:finger: HYPOFAB :finger:

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Post by RUFF »

basketcase wrote:
RUFF wrote:The AA and the Marlin case both have an oil gallery that feeds both cases. There is no need to run an external hose or fill the front case from the top.

My AA never got that hot that i noticed any problems.


Did you grind the end off your imput shaft?? In one set of instructions I found it said to do that.


Show me this set of instructions? You do not need to grind the END of the shaft. Some shafts do need modifying but its defianatly not the END that needs grinding.
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Post by 83 lux »

basketcase wrote:
RUFF wrote:The AA and the Marlin case both have an oil gallery that feeds both cases. There is no need to run an external hose or fill the front case from the top.

My AA never got that hot that i noticed any problems.


Did you grind the end off your imput shaft?? In one set of instructions I found it said to do that.


i have spoken to you about the dan and i have looked and looked and looked for info in doing this and can not find it anywhere.

have put it back togerther and got some thicker oil
will try this :lol:
HOOLAY Wish i could buy boggers for my DH bike
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Post by basketcase »

RUFF wrote:
basketcase wrote:
RUFF wrote:The AA and the Marlin case both have an oil gallery that feeds both cases. There is no need to run an external hose or fill the front case from the top.

My AA never got that hot that i noticed any problems.


Did you grind the end off your imput shaft?? In one set of instructions I found it said to do that.


Show me this set of instructions? You do not need to grind the END of the shaft. Some shafts do need modifying but its defianatly not the END that needs grinding.


Its not the end but it still says to grind the shaft.

This is out of the instructions from the Allpro site.

If the rear transfer case is from a 1979 to 1980 4 speed transmission truck, it will require grinding the larger unused 21 splines on the input gear before it will engage with the crawler output shaft. The left photo above shows duct tape used to protect the outer splines while leaving the larger inner splines exposed. The right photo shows the shaft after the larger splines have been ground away. Do this step slowly and carefully to avoid overheating the shaft.

So if our rear cases are out of 79-80 model this could be the cause??
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Post by 83 lux »

yer that would be the answer if you and i had that stlye of t-case i have pulled mine out and i remember yours being the same.
They are not the stlye of t-case that they are talking about on the allpro site.

We will sort this out, one day :lol:
HOOLAY Wish i could buy boggers for my DH bike
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Post by 83 lux »

Image

this is the stlye of case you and i have dan
HOOLAY Wish i could buy boggers for my DH bike
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Post by hophoar »

Pull the shifters and go for a run, you should be able to see the oil being picked up around the gears.
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Post by basketcase »

83 lux wrote:yer that would be the answer if you and i had that stlye of t-case i have pulled mine out and i remember yours being the same.
They are not the stlye of t-case that they are talking about on the allpro site.

We will sort this out, one day :lol:


Cool, thats cancels that out.
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Post by 83 lux »

hophoar wrote:Pull the shifters and go for a run, you should be able to see the oil being picked up around the gears.


this could help i will to that
good idea thanks

Scott
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Post by Tazz »

83 lux wrote:Image

this is the stlye of case you and i have dan


Whats with the glove Scott, Tony told me you where gay, now ive seen the proof....
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Post by RUFF »

83 lux wrote:Image

this is the stlye of case you and i have dan


Scott that is the 5spd front case not the rear case. Its the rear case that needs to have the spline modified if it is the full spline style. The 5spd front case is allways the style pictured.
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Post by RUFF »

TAZZ wrote:
Whats with the glove Scott, Tony told me you where gay, now ive seen the proof....


:rofl: :rofl: :rofl:
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