Motor Installation - Traxxas 86086-4 Owner's Manual

Note: Heavier oil will allow power to be transferred even with one or
more tires off the ground. This can make the vehicle more likely to
overturn.
From the factory, both the differentials are filled with SAE 50,000W
viscosity silicone oil. Only use silicone oil in the differentials. Traxxas
sells SAE 10,000W and SAE 30,000W viscosity oil (see your parts list). The
differentials have to be removed from the vehicle and disassembled to
change/replace oil.

MOTOR INSTALLATION

To access the motor, remove the gear cover by removing the single
screw on the top of the gear cover. The motor uses an aluminum
mount for quick, easy motor access and gearing adjustment. To
remove the motor, remove the single large hex screw using the
supplied 3mm wrench; then, rotate the motor and mount to the
side of the model, and slide backward off the post.
The motor mount was carefully
engineering to provide additional
features and adjustability. Two
sets of holes are provided for use
with aftermarket motors. These
use 3mm screws with 25mm
spacing that is compatible with
most aftermarket motors.
These are:
1. Low CG (center of gravity) installation (stock motor position; mounts
the motor low to the chassis for best handling performance)
2. High CG installation (mounts motor higher for more clearance for
larger motors or aftermarket heat sinks)
An additional set of motor mounting
holes is included for custom application.
This is for larger aftermarket motors with
4mm screws and 29 - 30mm spacing.
Low CG
High CG
Big Motors
ADVANCED TUNING ADJUSTMENTS
Use higher viscosity
(thicker) differential oil for:
• More power to the wheels
with the most traction.
• Racing on low-traction
smooth surfaces .
• Better performance for
climbing on uneven terrain.
Using lower viscosity
(thinner) differential oil for:
• More power to the wheels
with least traction.
• Racing on low-traction
rough surfaces.
E-REVO VXL BRUSHLESS • 33