tosoutherncars
Jedi Knight
Offline
Hi all,
Just took delivery of my latest eBay win - a used pair of front Armstrong dampeners. (From stepping on the bumper of my 1500, it looks like one is working, and the other isn't.)
I plan on giving the 'new' set a thorough clean & flush, and then swapping them onto the car (to minimize downtime). Maybe at that point I'll send the current ones to Peter for rebuilding... I guess we'll see how the 'new' ones perform. I thought I'd document the process.
So far... got one shock on the bench. They both look very clean. Arm had resistance both ways, but resistance was not completely even / smooth, and the arm wanted to bind at the limits of travel (at either end). Pulling the cover plate, the shock contained oil, no dried gunk, no strong smell.
Dumped the used oil, and refilled through open 'body' with kerosene. moved arm through range, and clouds of silver sediment came flowing out of the valves / holes. Dump, fill, work arm back & forth, repeat. About 20 times, until no further sediment noted. Throughout, the motion of the arm became more fluid, constant and predictable.
Now I can actually feel the valve working... very slow & gentle efforts can move the lever arm, but shoving it quickly causes it to dampen and stiffen up. Again, that's just with kerosene in it.
Next steps... cut new gasket, reassemble, refill and fit to car. I'll try to remember to post some pictures, and notes on performance.
Just took delivery of my latest eBay win - a used pair of front Armstrong dampeners. (From stepping on the bumper of my 1500, it looks like one is working, and the other isn't.)
I plan on giving the 'new' set a thorough clean & flush, and then swapping them onto the car (to minimize downtime). Maybe at that point I'll send the current ones to Peter for rebuilding... I guess we'll see how the 'new' ones perform. I thought I'd document the process.
So far... got one shock on the bench. They both look very clean. Arm had resistance both ways, but resistance was not completely even / smooth, and the arm wanted to bind at the limits of travel (at either end). Pulling the cover plate, the shock contained oil, no dried gunk, no strong smell.
Dumped the used oil, and refilled through open 'body' with kerosene. moved arm through range, and clouds of silver sediment came flowing out of the valves / holes. Dump, fill, work arm back & forth, repeat. About 20 times, until no further sediment noted. Throughout, the motion of the arm became more fluid, constant and predictable.
Now I can actually feel the valve working... very slow & gentle efforts can move the lever arm, but shoving it quickly causes it to dampen and stiffen up. Again, that's just with kerosene in it.
Next steps... cut new gasket, reassemble, refill and fit to car. I'll try to remember to post some pictures, and notes on performance.