You probably don't need to ream this one. This will speed the steering response and reduce wear and tear on your servo. Undo the pivot screws (kingpins), and if the joint fits tightly, gently sand or file until it fits freely. The joint where the front hub carrier pivots inside the steering knuckle can also be tight due to extra plastic from the molding process. If you over-tighten the upper mount bolt, it will squish the upper mount bushing, making it fatter and causing binding. Tighten the upper shock mount bolt gently. If it turns hard or binds, lightly ream the shock cap with an 11/64" drill bit. During reassembly, bolt the upper mount in place first, and ensure it pivots easily. Tightness or binding can prevent the shock from supporting the car's weight appropriately. It will swing more freely after.įinally, ream the upper shock mount pivot. You will probably feel like nothing is happening, but check how the part pivots on the pin before and after. Hold the drill bit in your fingers (don't use a power drill).Gently turn it into and through the holes on the control arm where it attaches to the chassis, and on the hub/hub carrier where it attaches to the control arm. Next, use a 5/64" or 2mm drill bit to ream the pin holes. Sand or file this until it fits inside the fork freely, but without excess play. You will probably notice little pieces of excess plastic left on the hub carrier where it fits inside the fork. When you're done, the suspension should flap up and down easily under its own weight, with no shock or tire attached.īegin by disassembling the suspension: remove the shocks and hinge pin holders, pull out the hinge pins, and remove the hub pivot pins (kingpins).įile the joints: Gently fit each hub carrier into the fork on the end of its control arm. The suspension must move as freely as possible. These cars are light, and the springs and shocks are weak. Basically, treat it like a kit: begin by disassembling everything and putting it back together more carefully. You can make these improvements yourself to get the Dromida handling its best. It won't work to its potential right out of the box because they have to skip labor-intensive steps to keep the cost down. The Dromida suspension design is basic but functional, with good adjustability.
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