5
808 TECH TIPS
962080
S 8x0.1
962081
S 8x0.2
TIP
Tighten screw until pivot ball
is tight against block.
Lift ball joint until it snaps into
place over pivot ball. Ball joint
should move freely.
The fi nished joint.
Loosen and remove screw.
INSTALLING PIVOT BALLS INTO COMPOSITE BALL-JOINTS
Place the pivot ball on the ball joint
and use a screw to tighten it to an
engine mount or some other part.
Before fi lling in the differentials with oil we suggest fi rst to check the gear mesh as below. If there is too much or too little diff side play, this may
create non-optimal gear mesh between the diff gear and the pinion drive gear. This is easily resolved by inserting 1 or 2 of the included thin
shims behind a diff outdrive ball-bearing, depending on how much play there is.
FRONT & REAR DIFF GEAR MESH ADJUSTMENT
THE LOCATION OF THE SHIM(S) DEPENDS ON WHETHER YOU ARE TRYING TO CLOSE OR OPEN THE GAP:
To close a wide gap:
add 1 or 2 shims against
diff spur gear
TO CLOSE A WIDE GAP
TO OPEN A NARROW GAP
To open a narrow gap:
add 1 or 2 shims on the
other side of the diff, away
from spur gear
#962080 WASHER S 8 x 0.1 mm (10)
#962081 WASHER S 8 x 0.2 mm (10)
TIP
insert shim(s) here
insert shim(s) here
DRIVE SHAFT PINS SERVICING
TIP
To enjoy the longest possible lifespan of the drive shafts and diff outdrives, it is extremely important to properly service the drive shaft pins.
Inspect the pins after every 3 hours of runtime. If the pins show any wear, replace them with new pins.
For easy and comfortable drive pin
replacements use #106000 HUDY
Drive Pin Replacement Tool.
To replace the worn pins use only
the premium HUDY drive pins
#106050.
GRAPHITE PARTS PROTECTION
TIP
Follow this tech tip to protect the graphite parts.
Fine sandpaper
Use fi ne sandpaper
to sand smooth the
edges of all graphite
parts.
Apply CA glue to all edges
of the graphite parts.
Protect all XB808
Graphite Parts:
• Front shock tower
• Rear shock tower
• Steering plate
• Radio plate
Do not use drive shafts
when the pins are worn.
Press out the worn pins.
Press in new pins and
regularly inspect for
wear.
CLOSE A WIDE GAP
OPEN A NARROW GAP
Summary of Contents for XB808
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