Transfer / pinion / axle seal probs.

[stoo]

In 60,000KM my 2004 78 series Troopy has done two transfer front output seals, 1 x rear
diff pinion
seal, and now a rear axle seal. Is this common?
It has been through a lot of deep mud and that must be why, but I thought they
should be
able to handle a bit more than that.
Also, my gear box is not real smooth, is that normal for a 78 series?
Thanks
Stu

 

[roscoFJ73]

Is this common?
It has been through a lot of deep mud and that must be why, but I thought they
should be
able to handle a bit more than that.

Oh yeah the deep mud

 

[stoo]

Yes, that kind of deep mud.

It's also cost me an alternator rebuild, a fun hub and I've had the starter out twice for a clean-out.

 

[roscoFJ73]

You have the H150 gearbox which I thought was ok.

This is living the life of an underground mine cruiser so you would have to expect a bit more than usual

Whats a "fun hub"??

 

[stoo]

Sorry, that was meant to be a fan hub, the viscous clutch thingo.
But from this day on I'll be calling it a Fun Hub.

 

[crushers]

mud is extremely corrosive and abrasive. although Land Cruisers are built like tanks the seals are just that seals, and will wear, tear and leak. it is part of the game that we play.
a very good washing after each run helps a lot but still the grit gets inside.
you will be wanting to change out the fluids OFTEN since the contamination will turn fluids grey and abrasive which will eat up the bearings and races leading to t/case rebuilds, diff rebuilds, clutch replacement, elec components HATE mud. plan on starter and alternator rebuilds or replacements.

cheers and welcome

 

[lshobie]

Make sure your diff/tranny/transfer vents have extended hoses to keep them well out of the water. Also make sure the vents aren't plugged with mud - if they are the pressure has to be relieved somewhere (like maybe through seal).

I'd remove the seals/axles/bearing etc and flush out the diffs to be on the safe side.

Seals do go, but not that often - so there is a reason for it. Check vents, flush diffs.

Regards

 

[crushers]

Seals do go, but not that often - so there is a reason for it. Check vents, flush diffs.
Regards

i disagree, i have seals eaten in just a couple weekends of mudding. 60,000 km of abusive handling and the seals could go even more often than what he is seeing.
now there is nothing wrong with raising the vent lines (although i have seen very little good results from this effort) and yes he should be checking things over better and if he was not playing int he mud and had these seals going then i would suggest another problem.

mud is EVIL fun stuff to play in. it will cost you money and time to stay ontop of the contamination. i spend anywhere from $30-$60 everytime i go out to play and still loose seals.

cheers

 

[stoo]

mud is extremely corrosive and abrasive. although Land Cruisers are built like tanks the seals are just that seals, and will wear, tear and leak. it is part of the game that we play.
a very good washing after each run helps a lot but still the grit gets inside.
you will be wanting to change out the fluids OFTEN since the contamination will turn fluids grey and abrasive which will eat up the bearings and races leading to t/case rebuilds, diff rebuilds, clutch replacement, elec components HATE mud. plan on starter and alternator rebuilds or replacements.

cheers and welcome

I do give it a pretty thorough clean after the muddy trips, it's particurly hard to get the crud out of the handbrake drums so they chew shoes pretty quick. I have found water in my rear diff a couple of times and it's been changed straight away. I'm about over the mud, we're going to be doing a different kind of driving for a while.
Thanks
Stu

 

[stoo]

Make sure your diff/tranny/transfer vents have extended hoses to keep them well out of the water. Also make sure the vents aren't plugged with mud - if they are the pressure has to be relieved somewhere (like maybe through seal).

I'd remove the seals/axles/bearing etc and flush out the diffs to be on the safe side.

Seals do go, but not that often - so there is a reason for it. Check vents, flush diffs.

Regards

I have extended diff breathers, they sit up high on the firewall, just below the bonnet.I'll get them to have a good look at it when the seals are done, it's still under warranty.
Thanks
Stu

 

[Francesco_from_Italy]

In an australian forum I found that discussion about some problems pf the gearbox of 2001/2001 78s:


Messaggio inviato 04 Gennaio 2006 18:34 Profilo di cortomaltese Invia un nuovo Messaggio Privato Edita/Cancella Messaggio Rispondi con le virgolette (Quote) Forse ti potra' essere utile,pare appunto che ci siano problemi al transmission shaft dei modelli serie 7 fino al 2003,dopo di che la TOYOTA è intervenuta,modificando l'asse.Il tipo di cambio è denominato R151F ed è comune a tutti i modelli 7 e 105 con motore HZ.
Riporto di seguito alcuni post di amici australiani che denunciano il problema:

Yep, common problem. Ours went at around 160,000km. Replacement cost from memory
$2,800 which included a new heavy duty clutch. The replacement shaft is a one
piece shaft so the offending spline is no longer there. This problem appeared on
the first 78 series models and was fixed on new Troopys from around 2003 from
memory.

Yes, you have no drive. Luckily we were 200m from home but were supposed to have
been in the middle of the Simpson when ours went but illness in the family kept
us home - lucky we were

If you have clunks from the transmission when taking off and changing gear, this
is a probable cause (but could be something else as well.

Stevesub

78 Series Troopy pop-top camper.
----- Original Message -----
From: ggoellnicht
To: troopyoz@yahoogroups.com
Sent: Thursday, October 20, 2005 10:51 PM
Subject: [troopyoz] gearbox problem


Ihave driven troopys for many years with no major problems,some of
which have been in extreme 4w.d.situations.Inow own a 2001 standard
diesel troopy and have been told that the conecting shaft between the
gearbox and diff. is a small steel tube that has a problem with
stripping on the spline leaving you with no gears--atow job.Has anyone
experienced this and what year models have this weak link.My car is
doing 1 35000km.so far with no problems but if this is a fact it is a
worry.

Potresti cmq tentare la carta della garanzia internazionale TOYOTA che se hai i dovuti agganci in concessionaria toy potresse risolverti il problema senza spesa essendo appunto un difetto di fabbrica!
Da qualche tempo ho potuto verificare che questa garanzia funziona.A me appunto hanno cambiato tutto il quadro strumenti,peraltro molto costoso per un difetto accertato sul SUB FUEL TANK senza spesa alcuna.
Salutoni e se posso esserti utile per una ricerca del pezzo incriminato cerchiamo di scoprirlo che potrebbe essere utile ad altri amici con 78 antecedenti il 2003

--------------------

alex
FRGS

Francesco

 

[stoo]

Francesco, thanks for the tip.
i have read about this prob, I'm not sure if this is applicable to my car or not but it's not really the problem I'm havin anyway.
particularly when cold, downshifting is difficult. Even when hot, downshifting into 3rd is difficult, maybe it's normal but it doesn't seem right.
thanks
Stu