petrol 80 series 1991 4 litre full time 4wd

Submitted: Friday, Oct 07, 2011 at 01:27
ThreadID: 89413 Views:1718 Replies:4 FollowUps:1
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hello everyone. i just bought a 1991 4 litre petrol 80 series. its a full time four wheel drive. i have a few questions. firstly when changing gears wat revs should i bring the car up to before changing? is 3000 rpm the usual? secondly am i just supposed to drive around in four wheel drive high because there is no way to take it out of 4 wheel drive? it might sound like a silly question but i just want others input on this cause i dont really know this car that great yet and i want to get to know all the proper ways to use it. thanks callum
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Reply By: fisho64 - Friday, Oct 07, 2011 at 02:00

Friday, Oct 07, 2011 at 02:00
full time 4WD has an extra diff in the middle, there should be a button or lever to lock it for offroad? The 100 series has a button and lock automatically if in low range.
Is it missing the glovebox handbook? Go to a 4wd wreckers and you'll get one for about $5, usually they cover all variants and it will tell you EVERYTHING you need to know!
AnswerID: 466973

Follow Up By: patsproule - Friday, Oct 07, 2011 at 06:02

Friday, Oct 07, 2011 at 06:02
Hopefully you got the 4L injected motor and not the early carby motor version?

It is a full time 4WD. Some of the 80's had a centre diff lock button and some didnt (but I think they were the later ones). You need to visit, register and then ask there as the site has a wealth of info on Landcruisers.

FollowupID: 741097

Reply By: Smudger - Friday, Oct 07, 2011 at 16:02

Friday, Oct 07, 2011 at 16:02
You'll find all the answers here - Toyota Fourbie Owners Forum
Full Time 4WD is effectively All Wheel Drive - when you go off road engage the Centre Diff Lock.
As for revs, 3k sounds about the mark, it depends on how you like to drive.
AnswerID: 467015

Reply By: Madfisher - Friday, Oct 07, 2011 at 22:33

Friday, Oct 07, 2011 at 22:33
For max economy 3000 rpm is to much in a push rod OHV motor that was designed in the 30s, 2500rpm would be better, but if you are trying to pass a b double then take it up to 4000rpm.
Cheers pete
AnswerID: 467047

Reply By: Member - DOZER- Saturday, Oct 08, 2011 at 11:22

Saturday, Oct 08, 2011 at 11:22
you will find the good ol 3f doesnt like revving too much...they make max torque at 1800-2000 rpm, so change gear sufficiently to put the motor at 2000 in the next gear is the best advice. If you would like a motor manual to assist you doing your own maintenance, there is one on ebay.
AnswerID: 467090

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