BMI Racing DB10T - Manual (Page 3)

Front suspension assembly
Locate your lower front suspension arms and the
hard anodized alloy pivot balls. Note that the arms
are not symmetrical.
Pop the pivot balls into the arms with the shoulder
on the ball facing up. Do this by placing the ball on
a hard flat surface and placing the arm over the
ball. Carefully push the arm down over the pivot
ball. Be careful. It will take a lot of force.
Special Note:
The best way to install the pivot balls is with an IRS
pivot ball tool (www.teamirsrc.com, IRS1376). If
the pivot balls are tight you can over tighten this
tool, after the ball snaps in, a little at a time until the
ball moves freely.
Locate your upper suspension arm rod ends. Note
that the top side of the rod end opening is smaller
than the bottom
With a hobby knife, carefully chamfer the top of
the rod ends opening. This creates clearance for
the king pin shims that will go here later. This will
ensure there is no binding in the suspension.
The inset picture shows a finished rod end.
Step 1
Step 2
Locate the two remaining hard anodized alloy pivot
balls and snap them into the upper arm rod ends with
the shoulder on the ball facing down. As with the lower
arms, squeeze the rod ends if the balls do not move
freely.
Locate the upper suspension arms, the upper arm
turnbuckles and assemble as shown above.
We prefer to thread the right hand thread portions
of the turnbuckles into the rod ends and the left
hand thread into the upper arms.
Note:
The arms have a bottom and a top. They have
small circular impressions on the bottoms.
Step 3
Step 4
Step 5
Locate the 10 degree reactive caster upper
suspension mounts, upper suspension hinge pin,
e-clip and nylon caster spacers.
Assemble as shown.
Make sure the upper suspension arms pivots
freely. If there is any binding at all, the car may
handle poorly. If the upper arms are tight, use the
back of a hobby knife to scrape the front and back
of the reactive caster blocks and the inside of the
upper suspension arms to make more clearance
for the caster spacers. Take your time here and
get it right!
Special Note:
The DB10R uses IRS upper hinge pins and does
not require setscrews in the upper suspension arm
mounts.