Motorhomes 2009 - Installing Shock Absorbers on Your Rv to improve Ride capability
Good afternoon. Today, I found out about Motorhomes 2009 - Installing Shock Absorbers on Your Rv to improve Ride capability. Which is very helpful for me and you. Installing Shock Absorbers on Your Rv to improve Ride capabilityShock absorbers don't truly absorb shock, they dampen it. Why is this important for you to know? To heighten ride quality, or in the case of a towable Rv, the "white knuckle" factor induced by trailer bounce and sway, it is necessary to understand a slight about the dynamics a shock absorber attempts to control. This mod discusses both ride dynamics and issues connected with it, and how you can mod your Rv to drastically heighten your driving and/or towing experience.
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Simply put, a shock absorbers sole purpose is to dampen the compression and rebound of any suspension theory by controlling the speed at which a suspension cycles. Without them, your Rv would continue to bounce up and down until the kinetic energy is ultimately dissipated from the suspension's springs (e.g. Leaf springs, coil springs, torsion bar, etc.). Now let's think about the law of conservation of energy. With this law in mind, shocks will achieve two functions. The first function is to slow the suspension's cycling of compressing or rebounding. Secondly, since energy can't be destroyed, the shock transforms the kinetic energy into heat as it dampens the "bouncing" of the springs. That's it. That's what a shock does.
So why is this important? The majority of towable Rvs don't come from the facility with shock absorbers! And while class A, B, and C motor homes do have shocks, they are often times barely enough to operate the suspension, causing wandering and inordinate side-to-side petition on uneven surfaces.
To install shock absorbers on a towable Rv, a retrofit kit is generally needed, although some towables already have the frame and shackle tabs necessary. A retrofit kit contains bracketry and hardware necessary to truly install the shocks. These kits use a plate that mounts to the lowest of the leaf spring shackles and has a tab for the lowest of the shock to mount to. The top mount for the shock attaches to the frame. It is often necessary to drill a hole in the frame in order to bolt the top shock mount to. This sounds scary to do but there is generally enough frame material that the hole drilled won't weaken the frame any necessary amount.
For torsion type axles, like the Dexter brand, the retrofit kits are a slight different. Since there are no shackles, you must whether replace the torsion arm link (from the axle housing to the spindle) with one that has a lower shock mount, or have a tab welded to the torsion arm link. The upper mount can whether be drilled straight through the frame or an further mounting tab will need to be welded to the frame. Much depends on your particular axle arrangement, though most torsion axle setups are generally the same.
Motor homes are a slight different. Since they already come adequate with shock absorbers, replacing them is all that is necessary. This is a mod you can regularly tackle yourself as all that is generally complicated is, using basic hand tools, to unbolt the shocks from their mounts and replace them using the reverse order used during removal. There may be some bolt corrosion to deal with but a slight penetrating fluid sprayed on a half hour or so before bolt removal will make things much easier. If you have a motor home that has struts (like a Sprinter) instead of independent springs and shocks, you should have a qualified suspension expert do the job. Extra tools are required to compress the strut assembly in order to take off and replace the shock cartridge.
Tip: When fitting a towable Rv with shocks using a retrofit kit, you will have to ensure you know how long of a shock you need beforehand as the upper mount point can vary from trailer to trailer. A close guesstimate is to part from the lower shackle plate to the middle of the frame rail. If you opt for the kit that includes shocks, make sure this measurement is within the working range of the shocks supplied with the kit.
Tip: In increasing to replacing shocks to heighten ride characteristics of a motor home, there are any other mods that can be done to help as well, such as sway bars, urethane bushing replacement, and even air suspension. But these are mods for other time. Stay tuned!
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