NEWBIE: sold lemon 4X4 NO 4X4

Forum: 

hi guys nice site.. this is my first post so go gentle.... right i bought a fourtrak today 1988 2.0 petrol lwb.. it has the gearbox with the switch on the dash for 4wd/h .... right i know u have probabbly answered this loads and ive read a few but none of them seem to answer my query so here goes. 2wd is fine.... when i select 4wd/L the gearing is reduced correctly ie its loads slower but the rear wheels are the only ones providing drive.. i went on the grass and got stuck on a tuft of grass my car would have got over lol.. so i know the fronts are not being driven....also when in 4wd/L or at any other time the button on the dash does not light up althought i can hear the clicking under the pedals like described in other posts.. i will check the vacume pipe tommoz but basicly its the drive problem im worried about... the hubs on the front have the lock on them manualy.. even with them engaged the fornts are still not driven.. so what test do i have to do to narrow down the problem from the transfer box to the gear box or what.. i am good at mechanics but have never owned a 4x4 so any help would great i just need to know wat the possibilities can be and how i can narrow it down thanks agin andd sorry the post is so long lol

Chris First, with the transf

Chris
First, with the transfer case lever in 2H, lock the hubs into 4wd, or Lock, whichever it says, then get under the front, and try to turn the front tailshaft. If you can only turn it a bit (backlash in the front diff), then the hubs are OK. If you can turn it freely, then there is a hub problem. Next, unlock the hubs, and put it in 4L with the lever. Again, you should only be able to turn the tailshaft a little bit (Again backlash in the transfer case) If you can turn it normally, then its a transfer case problem. Someone else familure with the vacumn solinoids can help you with testing this bit.

Cheers
David

Growing old is compulsary, growing up isnt, and MUD MAKES EXCELLENT TOOTHPASTE.
Please visit http://groups.msn.com/AussieDaihatsuRocky/_whatsnew.msnw
All views and advice offered are my own, from my own experiences. Take such advice at your own risk.

Growing old is compulsary, growing up isnt.
MUD MAKES EXCELLENT TOOTHPASTE.
I use billion dollar satellites, to find Tupperware.
Please visit http://groups.msn.com/AussieDaihatsuRocky/_whatsnew.msnw
All views and advice offered are my own, from my ow

4wd not working

Hi Chris

I think if you have the 4WD switch type of tranmission then the 2H/4L lever only changes from high to low, the 4WD is only engaged when the button is pushed and the lever is in 4L.

On the side of the gearbox there are two solenoids and a snake pit of wires and pipes. When the button is pressed vacuum is diverted through one of the solenoids to pull the 4WD in and when you press the button again the other solenoid pulls the 4WD out. You should find a pipe running from each solenoid back to the transfer box, i think one is above the front prop flange and the other is on top of the casing. If you take the vacuum pipe that comes from the engine and by-pass the solenoids and connect it directly to each of the transfer casing pipes (with the engine running to provide a vacuum) and have your front hubs turned to free/unlock, then with one connected the front prop won't turn (4WD engaged) and with the other it wil turn (4WD disengaged). My Fourtrak is the same , although i know both of my solenoids are knackered. I've just had to do the above test to make sure my Transfer box is working. Maybe one day i'll get around to fitting some new solenoids

I hope that all makes some sort of sense and is helpful

"I think if you have the 4WD

"I think if you have the 4WD switch type of tranmission then the 2H/4L lever only changes from high to low, the 4WD is only engaged when the button is pushed and the lever is in 4L."

Thats not true Daz.. If you select 4L with the lever, the push button on the dash has no effect on anything. If the lever is in the 4L position, you have drive to all 4 wheels (also lock hubs in of course).
The push button slects 4H, but is overridden if 4L is selected.

I had the exact same problem when i bought mine 2 months ago. They said it is either..
*the vacuum lines are blocked,
*the power to the switch is not working, or your
*solenoid/vacuum switch on the transfer is buggered.

It turned out my vacuum switch was gone on top of my transfer case. This required full removal of transfer case and fitment of a new switch. This cost AUD$930 to get completed. The switch was AUD$200 and labour was around AUD$700. I was so shocked and angry!!

But now it is fine and has never missed a trick.. good luck.

if there is a problem with th

if there is a problem with the solenoids and switches why not run the vac feed pipe and the two into the transfer case up into the cab and use a 3 way vacume switch (compressed air swich may work) or even tee them together with two tube clamps on the transfer case feeds. switches and solenoid valves seems a complicated way of doing the job in the first place.

thanks allot

thanks alot guys thats great... i will test the shafts and stuff tommoz but i had a look at the alternator today ans sure enough it is brand new lol and has no vacume pipe coming off it atall. just wires.... so A. i suppose having no vacume pipe atall is my problem?? and B. are the alternators hard to get hold of or expensive coz i dont understand y the guy would not put the right one on? thanks for your time again guys Wink oh and one more thing one of u said that when the button is pushed then its 4h unless its overided by the 4l lever?? so when does 4h work?? when in 2h or do u have to be in 4l then press the button?? thanks people

Chris The sequence is, 2H- L

Chris
The sequence is, 2H- Lever in 2H and button out, next 4H, button pushed- lever in 2H, next 4L- button still in, lever in 4L position.

Cheers
David

Growing old is compulsary, growing up isnt, and MUD MAKES EXCELLENT TOOTHPASTE.
Please visit http://groups.msn.com/AussieDaihatsuRocky/_whatsnew.msnw
All views and advice offered are my own, from my own experiences. Take such advice at your own risk.

Growing old is compulsary, growing up isnt.
MUD MAKES EXCELLENT TOOTHPASTE.
I use billion dollar satellites, to find Tupperware.
Please visit http://groups.msn.com/AussieDaihatsuRocky/_whatsnew.msnw
All views and advice offered are my own, from my ow

Ok Fair nuff. Growing old

Ok Fair nuff.

Growing old is compulsary, growing up isnt, and MUD MAKES EXCELLENT TOOTHPASTE.
Please visit http://groups.msn.com/AussieDaihatsuRocky/_whatsnew.msnw
All views and advice offered are my own, from my own experiences. Take such advice at your own risk.

Growing old is compulsary, growing up isnt.
MUD MAKES EXCELLENT TOOTHPASTE.
I use billion dollar satellites, to find Tupperware.
Please visit http://groups.msn.com/AussieDaihatsuRocky/_whatsnew.msnw
All views and advice offered are my own, from my ow

4x4 agaiin

hi guys been to scrap yard today and found out that apparently its only the diesel fourtraks that have the vacume coming off the alternator.. the petrol ones comeout of the inlet manifold... i have the pipe to the inlet manifold so was wondering how u test the solonoids on the transfer box.. thanks for your time guys gradually gettin there..lol

basically on a petrol carbere

basically on a petrol carberettered engine the restiction of the throttle butterfly causes a vacuum in the inlet manifold as the engine tries to suck in air. that vacuum is used to power the brake servo and on a fourtrak the fwd solenoids. on a diesel there is no throttle butterfly so the air intake is wide open all the time ,so no vacuum. so a vacuum pump is fitted to drive the brake servo, some vehicles it is a separate pump driven by the fan belt or camshaft. on fourtraks its mounted on the back of the alternator. not sure what happens on a petrol injection engine, never had one to play with!!

Yeah.. you need vacuum from y

Yeah.. you need vacuum from your alternator mate.. thats a bit weird... do your brakes work well at slow speeds?? Coz this vacuum also supplies the brake booster.

All parts are hard to get a hold of Biggrin I'd suggest an auto electrician or manual transmission specialist because your problem may be a little deeper than first thought.

Good luck Chris.

yes

yea the brakes seem to work fine.... the little nipple is there on the alternator but nothing on it??? where would the vacum pipe be routed if i was to have one??? thanks again guys?

vacuum from alternator??

I am one of the unlucky guys who understand how alternators work and how vacuum boosted brakes work.

Can someone please explain why and how an alternator would associate with vacuum line on a 4x4? I have never driven a 4 wheel drive vehicle........ ALEC42

Not a problem Alec. Seeing a

Not a problem Alec.
Seeing as how diesels dont creat vacumn in their inlet manifolds, they have to generate it elsewhere for things like brake booster, and for the later Rockys, 4wd engaugement. For this purpose, the Daihatsu F7x series diesels have a vaccume pump on the rear of the alternator, driven by the alternator shaft, which is, of course, driven by the fan belt.

Hope this explains it clearly.

Cheers
David

Growing old is compulsary, growing up isnt, and MUD MAKES EXCELLENT TOOTHPASTE.
Please visit http://groups.msn.com/AussieDaihatsuRocky/_whatsnew.msnw
All views and advice offered are my own, from my own experiences. Take such advice at your own risk.

Growing old is compulsary, growing up isnt.
MUD MAKES EXCELLENT TOOTHPASTE.
I use billion dollar satellites, to find Tupperware.
Please visit http://groups.msn.com/AussieDaihatsuRocky/_whatsnew.msnw
All views and advice offered are my own, from my ow