You need to find out which bit is loose
I know this sounds obvious but without a definate problem area you will just keep going round in circles
If the stilt was fine and when you broke the spring and replaced it your problems started the odds are that you have either not put something back right or got the stilts twisted when you replaced the spring
First how to test them
Bit difficult to explain but I will try
If you grasp the spring in one hand just behind where your heel would be if you were wearing them then grasp the heel section of the bockwith the other hand
Now try to move the heel section side to side while you hold the spring still
Try this with the good stilt first and then the problem one
If the heel moves sideways more than about 3mm then you have either worn bushes or something loose and that will be your problem
If both stilts move the same amount the worn bushes arn't causing your problem
When you say you followed the tutorial did you mean this one
http://www.projumpforum.co.uk/index.php?topic=2337.0If so I have been meaning to add a bit to it as sometimes when you change the spring you can force the joints to one side or the other when you tighten the bolts up
The cure for this is to set the foot plate up square as in the first section and then loosen all the bolts on the moving joints (4 per stilt) also loosten the 4 bolts that hold the spring to the brackets (yes I know the hoof end is a pain but it is wort while doing to get them straight)
All the bolts need to be nipped up so you can just move the brackets/joints with a little bit of effort but not to loose so they wobble about
Next run the string through the hole and push the spring to make the stilt straight (I tend to push mine slightly outwards as I find they ballance better) If you check the good stilt with the string and find it is set to one side then you might want to set the bad stilt to the opposite way (so the string is either outside or inside on both stilts)
Now you slowly tighten the bolts a little bit at a time each (this will stop the stilts warping as you tighten them )
Check that they are straight (or set to your prefered side ) after each tighten and if needed push the spring over to correct any problem
I know this sound complex but I can sort a pair of stilts in less than 20 mins (Lot easier to show than tell
)
If you are still having problems after this post some pics or vids and I will try to thing of something else
Jason