Difficulty selecting 1st in 80LC

Submitted: Sunday, May 08, 2005 at 16:58
ThreadID: 22773 Views:1419 Replies:6 FollowUps:6
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First time user of this forum. However have been looking at posts for some time.
Have found some very usefull tips.

Just need some advice from those with the experience. Have 94 80LC with 250k's
on gas. I have trouble selecting 1st at full stop or just rolling. Pump clutch and will select. Have bled system, no change. Box oil appears to be up to level. No severe noises in box or drive train.

Any suggestions?

dindy
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Reply By: Wayne (NSW) - Sunday, May 08, 2005 at 17:11

Sunday, May 08, 2005 at 17:11
dindy,

The problem is common with the 80 sreies. If not already done change the gear box oil with a very light oil. 70W 90. A additive might also help.

Wayne
AnswerID: 110315

Follow Up By: dindy - Sunday, May 08, 2005 at 17:43

Sunday, May 08, 2005 at 17:43
wayne,

Thanks for the info was thinking along same lines thought I would tap some brains before doing so. Any long term wear probs with lighter lube?

dindy
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FollowupID: 366851

Follow Up By: Wayne (NSW) - Sunday, May 08, 2005 at 17:53

Sunday, May 08, 2005 at 17:53
dindy,

I don't think it would be a problem. This grade is what Toyota recommend.

The gear box will wear out at some time just like anything made by the vehicle manufactures.

Wayne
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FollowupID: 366855

Reply By: Member - Jiarna (SA) - Sunday, May 08, 2005 at 17:56

Sunday, May 08, 2005 at 17:56
Hi dindy

If pumping the clutch allows you to change OK, then it sounds like the problem my brother and I had with our MQ Patrols a while back. We were always bleeding the clutch hydraulics, but couldn't use 1st gear most of the time. In the end we got clutch slave cylinder kits for both vehicles, and that fixed it completely (cost about $30-40 each).

I wouldn't go for lighter oil than recommended, because if the oil was the problem, pumping the clutch wouldn't make any difference.

Just my 2c worth

Cheers
John
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AnswerID: 110325

Follow Up By: dindy - Sunday, May 08, 2005 at 18:10

Sunday, May 08, 2005 at 18:10
John

Thanks for that, was looking to do same as well as oil. I always try the least expensive fixes first rather than heading to the so called costly expert repairer who would only run the cheapest options first as well and do the big bill thing anyway.

dindy
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Reply By: 80scruiser - Sunday, May 08, 2005 at 21:31

Sunday, May 08, 2005 at 21:31
Agree with whats already been said.
The owners manual states 75w/90 easy shift.
Toyota uses Mobil 424 fluid. In caltex its called Textran.
Put this in and you will find it changes beautifully.
Best move I ever did and mines got 284 000 k's on it now.
AnswerID: 110362

Follow Up By: Member - Davoe (WA) - Monday, May 09, 2005 at 12:59

Monday, May 09, 2005 at 12:59
hmmm might have a look at that I grabbed (shell I think) 75 90 for my gearbox change and have the same problem and have a generally rough shifting box (doesnt whine)
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FollowupID: 366943

Reply By: Member - Phil G (SA) - Sunday, May 08, 2005 at 23:04

Sunday, May 08, 2005 at 23:04
Many of the gear oils don't work well in Toyota boxes, and give rise to slow gear cahnges, especially when cold.

Most common oils that people are happy with on Toyotas are
Castrol VMX-M and
Valvoline Duragear 75-85.

Cheers
Phil

AnswerID: 110372

Follow Up By: Max - Sydney - Monday, May 09, 2005 at 18:02

Monday, May 09, 2005 at 18:02
My 97 80 series changes well enough on these two oils - anything else is a nightmare when the vehicle is cold. I don't like going past about 40 thou before changing the gear oils.

Even so - I just double declutch going into third for reliable changes. They beefed up the synchro on third for 100 series so I assume its inherent in the 80 series box.

Done 212 thou now, but its been the same since new really. I keep wondering when the clutch will go, but it still tests ok and I haul a caravan for the last 20 thou! One day!

Max
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FollowupID: 366991

Reply By: age - Monday, May 09, 2005 at 07:42

Monday, May 09, 2005 at 07:42
Go with the oil change and slave cylinder - I use Castrol Syntrax - did wonders. Toyota pulled the gearbox out of my vehicle 4 times, put in new bearings and synchro's, all to no avail - One of the guys suggested a light "racing" grade oil and we never looked back. Was still a bit "crunchy" into 3rd and a switched on Toyota machanic found the clutch slave cylinder whilst still working, was not up to spec. Changed it and have excellent gear changes now. I change gear oil every 12 months and seems to keep all well.
AnswerID: 110381

Reply By: Swoosh - Monday, May 09, 2005 at 16:41

Monday, May 09, 2005 at 16:41
With 250K on the clock, the clutch is most probably ready for replacement. This can cause a problem with selecting 1st gear. We found the lighter oil helped for a while, especially when cold, but last week gave in and put a new clutch in. We would not risk a worn clutch on our upcoming Cape trip.
Swoosh
AnswerID: 110477

Follow Up By: dindy - Monday, May 09, 2005 at 19:00

Monday, May 09, 2005 at 19:00
Thanks swoosh, trying to aviod the enevitable, don't know if clutch had been done prior to purchase. Can you indicate cost?
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FollowupID: 366997

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