4WD really hard to disengage, ideas?

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Jerry
Advanced Member
Posts: 62
Joined: Tue Dec 14, 2004 3:13 pm
Location: Bakersfield, CA USA

Post by Jerry »

Good thread, thanks for the info.

Any comments on an '84 (one I test drove) that was hard to shift into and out of 4wd? The rest of the transmisison seemed to shift OK. I noticd it was hard to find the "Extra low" gear while in 4wd, but kind of chalked that up to my inexperience...

Thank you guys,

Jerry
Jerry
Bakersfield, CA
Owner of a rusty '84 Terc SR5 4WD
251,000+ miles, original engine, second transmission.

Transmission soon to GRENADE!
2wagons
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Posts: 87
Joined: Tue Aug 17, 2004 6:27 pm
Location: Virignia

Post by 2wagons »

I have found that when driving on straight away at moderate speed and then letting the speed off, I can easily take it out of 4WD. I guess the momentary drop in speed takes pressure off the transmission.
“How did I get here, this is not my lifeâ€
Jerry
Advanced Member
Posts: 62
Joined: Tue Dec 14, 2004 3:13 pm
Location: Bakersfield, CA USA

Post by Jerry »

I should have included in the previous post that it wasn't my intention to hijack it - sorry.

Does the same trick work on engaging 4wd as well? (at speed, let off gas, shove into 4wd) Push clutch in or not when doing so?
Jerry
Bakersfield, CA
Owner of a rusty '84 Terc SR5 4WD
251,000+ miles, original engine, second transmission.

Transmission soon to GRENADE!
864wd
Newbie
Posts: 19
Joined: Sun Dec 05, 2004 10:41 am

Post by 864wd »

I fixed the problem by having four new Toyo ultra 800 all seasons installed just before xmas. Great tires and now shifting out of 4wd is no problem. So it was due to having different sets of tires on front and back. Having four of the same, but worn different can cause the problem as well, so rotating these new tires will be a must. The Front ones will wear faster obviously because of front wheel drive...
Retroloc1
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Posts: 97
Joined: Mon Jan 12, 2015 10:27 am

Post by Retroloc1 »

4 tires with Same brand, same model, same size, rotating them every oil service and with good pressures, I never had problems to engage / disengage the real axle.
When I tried to use 2 summer tires + 2 winter ones (same size) I really couldn't disengage without going reverse for several inches in order to release pressure between gears.

The added drag on paved road was easily noticeable, prooving that the two axles were fighting against.
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simon84
Top Notch Member
Posts: 307
Joined: Wed Nov 03, 2004 2:18 pm
Location: Banff, Alberta, Canada

Post by simon84 »

I had this discussion about shifting 4wd to 2wd with a friend who has a tercel and he said he had to stop to make the shift, while I find it hard most times but easy on rare occasions. I tried making the shift without using the clutch and it seemed easier. I think if you really play around with finding out how to get your revs, speed and timing the shift just right you can probably master it. Whenever if find it sticky I don't force it, I just try a different speed or revs until it goes. When it goes it often goes with a good thunk.
Driver: 87 Tercel SR5, white, 4ac, weber carb (aka the Tercedes)
Road Tripper:95 Mitsubishi Delica L400 2.8L Turbo Diesel
Motorbike: 94 Kawasaki Ninja ZX6
Project Car:Red 68 Plymouth Sport Fury III
Previous Tercel:Orange 84 Tercel 4wd (aka the pumpkin)
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