Shock mount failure

[Don Bradner]

The primary jolt I hear/feel is when the wheel drops into a pothole. There are a
lot of potholes in the US, and I feel like I've hit 80% of 'em!

Dropping into a pothole at the full pressure of the airbag puts all of the force
in the extension direction.

Each of the breaks documented so far tear *down*, never up.

Don Bradner
90 PT40 "Blue Thunder"
My location: http://www.bbirdmaps.com/user2.cfm?user=1

On 3/10/2009 at 7:30 PM david brady wrote:

>If the tires stay on the ground, not "getting air" on the Nimitz
>in Ca, the max shock force is 4000lb (according to Justin at
>Koni), and all of that force occurs under rebound; i.e, the Koni
>shocks provide no, or negligible, compression dampening.
>IOW's all the forces are in the extension direction. That's not
>to say that the initial damage hadn't occurred under compression.
>It's just that for it to occur under compression something weird
>has to happen, like shocks that are too long, or dumping the
>HWH jacks w/o air in the bags. Once the initial damage
>has occurred, then normal shock loads add to the metal fatigue
>and the ultimate failure.