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    Gen4 - rocking side to side at speed
            
        
                21 Aug 2024 14:48         -  21 Aug 2024 14:48        #257266
        by Motacilla
    
    
    
            
            
            
            
                                
    
                                                
    
        Replied by Motacilla on topic Gen4 - rocking side to side at speed            
    
        Hello JimnyScott-
You tried the right things, reducing weight and increasing tyre pressure (higher than normal in the rear, right?).
The other thing to check would be the position of the weight relative to COG. Too much too high, or hanging heavy things off the rear, will have bad effects. Remember that a Gen4 Jimny has a very low weight limit, and also the centre of gravity is somewhere around the 4WD lever. Too much weight or weight that is too far from that point will make the little car squirmy.
Wheel nuts? On the LCV with steelies, I am going to say won't matter at all.
Failed shock absorbers might come into play at higher mileages, probably not in your case though.
    You tried the right things, reducing weight and increasing tyre pressure (higher than normal in the rear, right?).
The other thing to check would be the position of the weight relative to COG. Too much too high, or hanging heavy things off the rear, will have bad effects. Remember that a Gen4 Jimny has a very low weight limit, and also the centre of gravity is somewhere around the 4WD lever. Too much weight or weight that is too far from that point will make the little car squirmy.
Wheel nuts? On the LCV with steelies, I am going to say won't matter at all.
Failed shock absorbers might come into play at higher mileages, probably not in your case though.
        Last edit: 21 Aug 2024 14:48  by Motacilla.            
    
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                24 Aug 2024 04:58                #257311
        by JimnyScott
    
    
            
            
            
            
            
                                
    
                                                
    
        Replied by JimnyScott on topic Gen4 - rocking side to side at speed            
    
        I generally just re tightened them, they weren’t bad just a little nip up, but I did use my new torque meter to check they were the correct torque, I just done a search for the correct value, I can’t remember the torque was now, I was trying the new meter on everything,    
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                28 Aug 2024 18:52                #257366
        by saxj
    
    
            
            
            
            
            
                                
    
                                                
    
        Replied by saxj on topic Gen4 - rocking side to side at speed            
    
        A couple of years ago, I hit a big rock in long grass on a trail. I thought nothing of it as there was no visual damage apart from a ding in the front diff and a few scrapes on the rear. On the way home, I could not go over 80kph without the car swaying side to side. When I got home, I got underneath and with the handbrake up, rocked the car back and forth. I noticed excessive movement on the left rear radial arm on the chassis side. Tightening the radial arm bolt cured the problem. 
Shocks can last as little as 3 years, and I have also had them fail sooner. A dud shock will cause problems with handling.
    Shocks can last as little as 3 years, and I have also had them fail sooner. A dud shock will cause problems with handling.
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                30 Aug 2024 10:04                #257373
        by Dan
    
    
            
            
            
            
            
                                
    
                                                
    
        Replied by Dan on topic Gen4 - rocking side to side at speed            
    
        I've been torquing my wheel nuts to 100nm on the jimny. I arrived at that figure from a bit of web searching. I'm sure if that value isn't correct someone will be along shortly to point out the correct number.    
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                30 Aug 2024 12:41                #257374
        by Gadget
    
    
        
            
    
    
            
            
            
            
                                
    
                                                
    
        Replied by Gadget on topic Gen4 - rocking side to side at speed            
    The workshop manual lists 100Nm for wheel nuts, so you're spot on!I've been torquing my wheel nuts to 100nm on the jimny. I arrived at that figure from a bit of web searching. I'm sure if that value isn't correct someone will be along shortly to point out the correct number.
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                31 Aug 2024 15:20         -  31 Aug 2024 15:20        #257379
        by Gadget
    
    
    
            
            
            
            
                                
    
                                                
    
        Replied by Gadget on topic Gen4 - rocking side to side at speed            
    
        Update: I've fixed it! It was the shocks. Swapped out the OME set for Bilsteins and it's all back to normal.
I'm no mechanic, but is it safe to assume that this isn't normal (see video):
youtube.com/shorts/Pks8g3bXuMQ?si=WV9gJFLwFyQMT-V-
            
    I'm no mechanic, but is it safe to assume that this isn't normal (see video):
youtube.com/shorts/Pks8g3bXuMQ?si=WV9gJFLwFyQMT-V-
        Last edit: 31 Aug 2024 15:20  by Gadget.            
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