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Bumpy Ride!

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02 Jun 2011 06:04 #17215 by Halford
Replied by Halford on topic Re: Bumpy Ride!
why are my image inserts "hit and miss" ??

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02 Jun 2011 06:32 #17217 by darthloachie
Replied by darthloachie on topic Re: Bumpy Ride!

Halford wrote: why are my image inserts "hit and miss" ??


probably the size of the file - reduce to about 1600 x 1200 pixels and save as a jpeg

or try uploading them to photobucket or similar and linking from there

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02 Jun 2011 20:28 - 02 Jun 2011 20:29 #17252 by Halford
Replied by Halford on topic Re: Bumpy Ride!
thanks all, have setup photobucket

here you go Phil .. Jimny Suspension Explained

Remember, I'm a novice, trying to figure this out off the tinterweb - hence, I could be getting bad info, or joining the dots up wrong - so anyone please feel free to correct me.

The Jimny has a "3-link rigid axle with coil spring"

The beam axle is suspended by coil springs and shock absorbers serve to dampen the oscillations of the coil springs, whilst a Panhard Rod is used to control the lateral motion of the axle.

Beam axles have an important advantage for off-road applications, as they provide better vehicle
articulation and durability, however, drawbacks are that it does not allow each wheel to move independently in response to bumps, and the mass of the beam is part of the unsprung weight of the vehicle, which can further reduce ride quality.

Additionally, when one wheel hits a bump and the other doesn't, the beam can be set into oscillation by a gyroscopic torque about the steering axis which starts to turn the axle left-to-right. Because of the axle's inertia, this in turn feeds back to amplify the original motion.

Hence, on road, the Jimny ride has a choppy character that is often unsettled, body roll is prevalent through the corners and steering is indirect



Solid axle suspension characteristics:
Camber change on bumps, none on rebound, large unsprung weight.

If you’re used to unladen 4x4 pick-ups and seasickness then the Jimny’s lack of road manners will be familiar. Pogoing and stumbling over potholes, it takes to tarmac about as naturally as Gordon Brown poses for photos. A horse-drawn cart would behave as well on normal roads. It’s been described as an uncomfortable, slow, droning, torqueless vehicle with Soviet-flavoured internal decor, and it’s hard to deny any of those things. (The Sunday Times - October 25, 2009 - Johnny Smith)


I've dropped the tyre's down to 22/25 psi and the ride has improved.
Last edit: 02 Jun 2011 20:29 by Halford.
The following user(s) said Thank You: v8dougie

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04 Jun 2011 13:20 #17330 by v8dougie
Replied by v8dougie on topic Re: Bumpy Ride!
Very comprehensive reply, thanks! Have not had a chance to try dropping pressures but will soon. Already have them at 23/26, so will try 20/23 and see what it is like, that does seem very low though!

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04 Jun 2011 16:50 - 04 Jun 2011 16:51 #17339 by NewToJimny
Replied by NewToJimny on topic Re: Bumpy Ride!
I find the technique is to partially hang off the steering wheel pulling your back away from the seat. That sorts it. I live up a bumpy track and this gets me up and down that. :silly: reducing the tyre pressure to the recommended setting also helped.
Last edit: 04 Jun 2011 16:51 by NewToJimny.

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04 Jun 2011 20:01 #17356 by Halford
Replied by Halford on topic Re: Bumpy Ride!
like your technique :laugh:

here's my next project . this should do the trick

may have to add a 5" lift though, and drop the floor to accommodate :pinch:

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