Torsion Bar Re-Indexing

[Banshee]

thats on a torsion that was reindexed thats about in the centre of the truck underneath it is the bolt u turn to raise the torsions

Ok so by re-indexing it that explains the angle and thread but why have I been told to re-index the front then?

What's the difference in re-indexing the front or the back?

 

[R1cho]

when u adjust the rear all you do is adjust the height, you have to undo the rear to pull it out of the front and turn the bar a spline or two, this will then give more travel on adjustment when you adjust the rear giving more height, if i get time tomorrow i'll do a writeup with photo's and full instructions

 

[solarman216]

Right I went out tonight feeling excited and confident following last nights successful set of jobs that I've ticked off my list

I found this guide looking around the web but and was going to use it as reference when I'd wound the bars all the way up;
http://www.nissan4wheelers.com/displayForumTopic/content/286003431025124169

I loosened off the locking nut and wound them as far as they would go, I measured the amount of thread exposed when the locking nut was in position and both sides measured just short of an inch

I dropped the car back to the ground and the height hadn't changed a fat lot

The back was still reading 34" from floor to arch
and the front had gone up from 31" to just under 32"

All tyres have the same amount of PSI in them and there is nothing in the car that would of made a difference to weight distribution

I attempted to get the 3 bolts off to start re-indexing the torsion bar at the front however when I got all the nuts off it would budge and pull off no matter how hard i tried

What am I doing wrong? I've put it all back together and given up tonight, going to try again when I've got more of an ida what I'm messing with etc

Any suggestions guys?

Well first of all to raise the front suspension you want to see a lot more thread as in your pic#11 the more that bolt rises the higher you go, but just dropping it to the ground is not enough you have to go for a short drive to settle things out, then if you get to the max, about 100mm of thread and it is not high enough then that is when you need to back the whole lot off again and re index the lever on the shaft down a spline or two and then wind it up again, my target is 25 mm from the top wishbone to the down bump stop but that may be too small for a road going car, Rick

 

[Banshee]

when u adjust the rear all you do is adjust the height, you have to undo the rear to pull it out of the front and turn the bar a spline or two, this will then give more travel on adjustment when you adjust the rear giving more height, if i get time tomorrow i'll do a writeup with photo's and full instructions

Top man!!! I think a lot of us would really appreciate that

 

[Banshee]

Well first of all to raise the front suspension you want to see a lot more thread as in your pic#11 the more that bolt rises the higher you go, but just dropping it to the ground is not enough you have to go for a short drive to settle things out, then if you get to the max, about 100mm of thread and it is not high enough then that is when you need to back the whole lot off again and re index the lever on the shaft down a spline or two and then wind it up again, my target is 25 mm from the top wishbone to the down bump stop but that may be too small for a road going car, Rick

Thats all I could get it wouldn't go any higher at all

 

[Lazy-Ferret]

when u adjust the rear all you do is adjust the height, you have to undo the rear to pull it out of the front and turn the bar a spline or two, this will then give more travel on adjustment when you adjust the rear giving more height, if i get time tomorrow i'll do a writeup with photo's and full instructions

Yes Please:bow:bow:bow

 

[R1cho]

did it, hope it helps clear up the confusion people seem to be having

http://www.nissan4x4ownersclub.com/forum/showthread.php?p=203161#post203161

 

[Banshee]

Guess what............. I've only gone and done it


Re-tortioned and adjusted to the highest point and now have the car sitting at a cracking height front is slightly higher than the back but hoping that will settle over night

I went 3 splines on each side and managed to get the arms back into a position where the bolts would go back through by using a bottle jack to push it up, worked a charm!!!!

Was too dark by the time I'd finished to get any pictures so I'll upload some tomorrow

Special thanks to R1cho and his amazing instructions and patience

Thats one more job to tick off the list

 

[R1cho]

Guess what............. I've only gone and done it


Re-tortioned and adjusted to the highest point and now have the car sitting at a cracking height front is slightly higher than the back but hoping that will settle over night

I went 3 splines on each side and managed to get the arms back into a position where the bolts would go back through by using a bottle jack to push it up, worked a charm!!!!

Was too dark by the time I'd finished to get any pictures so I'll upload some tomorrow

Special thanks to R1cho and his amazing instructions and patience

Thats one more job to tick off the list

3 splines

2 at most now there will be too much strain on torsions and risk of snapping

reason ur too high is because of 3 splines it wont settle

front must be slightly lower than rear for simple fact of spring sag at the rear

 

[FullThrottle]

If you're interested here is my procedure. Older model Terrano, but you get the idea:

http://www.offroadexpress.co.nz/Forums/viewtopic.php?f=25&t=29240


Just some notes for you doing this....
- Don't go to high with the standard IFS or your angles for the steering, CVs etc will be very bad. You end up breaking and wearing things much quicker.

- When you wind it up, make sure you can still stick your thumb between the bump-stop and arm. If you are too close, you may end up spitting out your bumpstops and the ride is terrible. IFS still needs some travel.

 

[Banshee]

If you're interested here is my procedure. Older model Terrano, but you get the idea:

http://www.offroadexpress.co.nz/Forums/viewtopic.php?f=25&t=29240


Just some notes for you doing this....
- Don't go to high with the standard IFS or your angles for the steering, CVs etc will be very bad. You end up breaking and wearing things much quicker.

- When you wind it up, make sure you can still stick your thumb between the bump-stop and arm. If you are too close, you may end up spitting out your bumpstops and the ride is terrible. IFS still needs some travel.

Nice write up mate I Can get two fingers between my bumpstops so I think I'm ok

 

[Banshee]

Here's some pics from tonight on the way home from work, the front did settle as I expected

Looks tons better IMO :thumbs:thumbs

And a few just to show the articulation before I remove rear ARB link even though I've been told by the garage at work that it's a def MOT fail given new VOSA guidlines recieved last week :nenau