Land cruiser-80 series

Submitted: Friday, Mar 04, 2011 at 09:38
ThreadID: 84771 Views:8596 Replies:8 FollowUps:7
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Any ideas would be appreciated on a problem my dad has just started to have with his Cruiser.

Details: 1992 80 series 225,000km's

Problem: on starting up it is hard to select any gear.
Dad has had this vehicle for 12 years and has never had this problem before, so I was thinking there might be more to this than just going to a lighter grade of oil in the gearbox, which has been suggested to Jim by a mechanic.

Any ideas welcomed.

Cheers,
Mike
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Reply By: Snoopyone - Friday, Mar 04, 2011 at 09:48

Friday, Mar 04, 2011 at 09:48
Worn selectors or synchros come to mind


AnswerID: 447308

Follow Up By: Robin Miller - Friday, Mar 04, 2011 at 09:57

Friday, Mar 04, 2011 at 09:57
Was just thinking that also Snoppy


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Usually an indicator of worn internal components at that age Onemore.

However there are things you can check.

Those boxes have a long vague gearshift and its possible the selector levers
don't quite put the selectors in the right place (bushes etc worn)

When its in a gear not the selectors position on side of box.

When its next cold have someone underneath check the levers to go to right place.

P.S. 75-90 Syn oil change may give you breathing space for a while.
Robin Miller

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Reply By: Member - Chris & Debbie (QLD) - Friday, Mar 04, 2011 at 10:12

Friday, Mar 04, 2011 at 10:12
Mike
Maybe the clutch on the way out? has he noticed if the clutch is engaging with the peddle closer to the flloor than it used to?
Chris
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AnswerID: 447310

Follow Up By: onemore - Friday, Mar 04, 2011 at 10:25

Friday, Mar 04, 2011 at 10:25
Robin,
Thanks for your input, and I am inclined to agree that some money is going to be needed here.

Cheers,
Mike
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Follow Up By: Member - Matt L (WA) - Friday, Mar 04, 2011 at 11:22

Friday, Mar 04, 2011 at 11:22
I would check the Cylinders for fluid and slave cylinder for travel , also may be the clutch plate is hanging up or the pressure plate has lost tension.
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Reply By: guzzi - Friday, Mar 04, 2011 at 10:40

Friday, Mar 04, 2011 at 10:40
Onemore,
Check the simple things first.
Is there fluid in the clutch reservoir?
Is there any leakage around the clutch slave cylinder?
Change the fluid and bleed the clutch, do things improve?
Does the clutch slip when going up steep hills in 3rd gear?
Castrol VMX-M gearbox oil improves gear changes quite noticeably and is an option.
225,000km is not a lot on these vehicles as long as they have been looked after.
Petrol or diesel engine?
AnswerID: 447317

Reply By: briancc - Friday, Mar 04, 2011 at 11:12

Friday, Mar 04, 2011 at 11:12
Check the bearing / bush / support ring thing under the shift lever ball joint. This is accessible through the floor. Mine disintegrated on the Gunbarrel in the old HJ60 and I had to replace in Alice Springs. Not a hard job to check.
AnswerID: 447320

Follow Up By: Member - Tour Boy ( Bundy QLD) - Friday, Mar 04, 2011 at 11:19

Friday, Mar 04, 2011 at 11:19
They are a plastic bush that goes onto the end of the gear stick where it sits in the top of the box. The last one I bought from Toyota cost a huge $4.

But clutch slave would be my bet. Leaking ever so slightly not allowing full pressure and thus not full travel to the clutch. You need to pull the rubber boot back and look as it won't always leak to the outside but may let air in if leaking into the boot.
As said bleed the clutch slave cyl and see if it helps.
FWIW my clutch has 405,000km on it and doesn't slip only shudders due to some oil getting on the plate.
Cheers,
Dave
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Had 72 cruisers in my time

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Reply By: Member - Rodney B- Friday, Mar 04, 2011 at 11:15

Friday, Mar 04, 2011 at 11:15
Does it improve when it warms up?
Don't think there is anything wrong with your gearbox and the culprit will be your clutch. First check the operation of the slave cylinder (get underneath with your torch) and have someone slowly depress the clutch and the cylinder should move as soon as you start to depress the clutch. Pull the rubber boot back and check that no fluid leaks out. Next check your master cylinder underneath the dash by looking for fluid stain near the pedal or feel with your finger (you can taste brake fluid if it is present).

A common problem is oil from the rear main seal leaking and has reached the clutch. When you first start up the clutch is stuck to the flywheel and doesn't want to select any gear. Generally once you "break" this adhesion and it warms up it works ok. Does it shudder at all.

The gearboxes in this model are always a bit dicky especially the syncros (I bought mine with 118 thou on the clock and it had a slow syncro on 2nd) so just had to adapt to a slower second change and another 100 thou later it is unchanged, neither better or worse.
If you replace the clutch make sure you replace the rear main seal at the same time.
AnswerID: 447321

Reply By: Member - Josh- Friday, Mar 04, 2011 at 12:08

Friday, Mar 04, 2011 at 12:08
We had the same problem with our 80 series. It slowly got worse, was ok when warm. I had several mechanics look at it and all seemed to come up with a different idea. I eventually took it to my usuall mechanic in Vic when we passed through (on the way to Tassie). He gave back to me working perfectly, said i was simply the wrong oil. Others had quoted up to $2000 to fix it. Never had trouble with it again. Before spending to much Check what oil they put in it last oil change

Josh
AnswerID: 447323

Reply By: Member -Pinko (NSW) - Friday, Mar 04, 2011 at 13:39

Friday, Mar 04, 2011 at 13:39
Replace the bush at the bottom of the gear lever. A worn or collapsed bush does not allow the the remote rods to to travel far enough. I replaced these bushes in my sixty and eighty series and it fixed the problem with the same symptom as your dad has. Easy job to do.
Stan
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AnswerID: 447335

Follow Up By: Cruiser .- Friday, Mar 04, 2011 at 18:33

Friday, Mar 04, 2011 at 18:33
Had same problem with both my 80's and both times it was the block at the bottom of the gear lever.

Cheers,

Cruiser
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Reply By: Member - Phil G (SA) - Friday, Mar 04, 2011 at 14:12

Friday, Mar 04, 2011 at 14:12
Firstly you need to change the gearbox oil to Castrol VMX-M 75/85 - don't try anything else - this oil is the favourite gear oil of Landcruiser owners.

Then, if you still have a problem, chase the other ideas.
AnswerID: 447338

Follow Up By: onemore - Friday, Mar 04, 2011 at 15:34

Friday, Mar 04, 2011 at 15:34
Thanks to everyone that replied to my post.
I will get with my dad and see what we come up with, i.e. Go through each suggestion.
Of course this will have to be done whilst sampling his home brew seeing it's Friday.

p.s. The cruiser is a diesel and has been looked after.
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Follow Up By: Member - Phil G (SA) - Friday, Mar 04, 2011 at 19:50

Friday, Mar 04, 2011 at 19:50
:-))
I'll change my post to:
Firstly settle into your dad's home brew;
Secondly, change the gearbox oil to Castrol VMX-M 75/85 - don't try anything else - this oil is the favourite gear oil of Landcruiser owners. Maybe do this tomorrow when your head's a bit clearer....

Then, if you still have a problem, chase the other ideas
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FollowupID: 719660

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