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7

It is always recommended to replace suspecsion and braking components on both sides of the same axle at the same time, wherever possible. Both will currently be the same age - if one has failed, it is likely that the other is in a similar condition and so could easily fail soon. In the case of springs, the constant flexing of the metal can eventually lead ...


7

Ducati use desmodromic valve systems because it provides for; A more faithful adherence to both; (1A) Not just high speed Valvetrain timing. (1B) But also high acceleration Valvetrain rates; regardless of what weight/material the valve is made from. The latter (1B) - which can provide an advantage over the pneumatic Valvetrain design approach - ...


6

The goal was to prevent valve float at higher rpms. Given the metallurgy of the day it required a lot of spring pressure to ensure that the spring was push the valve closed. The desmo unit mechanically forces the valve closed as opposed to using spring pressure. This would allow an engine to run at a higher rpm then a unit with a conventional spring poppet ...


6

A fairly common issue on cars with strut suspension are broken springs. As the strut wears it looses its ability to control spring dampening. This allows the spring to compress and expand faster and farther than designed. Over time the spring weakens and breaks. The break many times occurs at the very last turns of the spring and may go unnoticed. Look at ...


5

I don't know the specifics of that car, so I'm going to take a stab and assume we're talking about coil springs. Springs only squeak where they contact something else, which is why spraying them didn't help. If you can't see anything else in contact with the spring have a look at the top and bottom seats. Those seats sometimes wear. Not necessarily all the ...


4

Springs do wear out overtime or with severe duty use. You can determine if they are sagging by checking the ride height. Where this measurement is taken and what is normal varies with each vehicle type and brand. They spring is what determines ride height as it the component that is supporting the vehicles weight. One of the leading causes of spring failure ...


3

I would check/replace the strut's top mount. The rubber may be worn allowing excessive movement at the top of the strut. Try pulling in the strut to see if the top mount moves excessively. If the rubber looks OK and nothing is worn, try loosening the mounting bolts and see if it can be relocated slightly to move the spring away from the panel it is ...


3

You have the spring rate (you call it spring constant) so you can calculate it yourself. ;) The spring rate is the amount of force (weight/mass) the spring requires to compress the specified amount. For example, your OEM front springs compress 1 inch when you put 146 pounds on it. So, with the numbers you provided the OEM height can be calculated. The car ...


2

Are you sure the springs are the source of the squeaking? It could be some other moving part of the front suspension, perhaps with a worn bushing.


1

The only time springs usually go bad is if the shocks/struts are no longer functioning. If a vehicle has bad shock/struts and is allowed to bounce all over the place, the springs become worn out. If the shocks/struts are replaced when required, you should have no fear of the springs. You can always do an inspection of the springs. Reasons to replace them: ...


1

Here are some points which you should look for in your suspension to determine whether you need to change them or not. 1. Bumpy Ride Drive the car on some rough roads, if you can feel all of the slightest bumps then unfortunately your coils are wearing out and you need to fix them. Also drive on a pothole in low speed, does your suspension does full ...



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