Advance Adapters 713096 - Manual (Page 2)

ADVANCE ADAPTERS INC. P/N 713096
P.O. Box 247, 4320 Aerotech Center Way
Paso Robles, CA 93447
PAGE 2 OF 4
Telephone: (800) 350-2223 Fax: (805) 238-4201 Page Rev. Date: 03-17-04
SPECIAL NOTE: The components packaged in this kit have been assembled and machined for specific type of conversions. Modifications to any of the
components will void any possible warranty or return privileges. If you do not fully understand modifications or changes that will be required to complete your conversion,
we strongly recommend that you contact our sales department for more information. This instruction sheet is only to be used for the assembly of Advance Adapter
components. We recommend that a service manual pertaining to your vehicle be obtained for specific torque values, wiring diagrams and other related equipment.
These manuals are normally available at automotive dealerships and parts stores.
CHEVY 4.3L V-6 ENGINE
TJ WRANGLER MOTOR MOUNTS
Engine Installation:
* For ease of installation, leave the engine motor mount brackets off until the engine is in place.
* The new 4.3L engine is slightly different that the original one. Firewall modifications may be necessary.
* A trial run is highly recommended.
* The engine and transmission should be bolted together for an easier installation.
Using an approved engine
hoist, lower the engine into
the compartment. Pay atten-
tion to the exhaust manifolds
and the radiator (removing
the radiator is a good idea).
The engine may not slide fully
into the compartment due to
firewall interferences (check
the clearance on both the
driver’s and passenger side
around the engine heads
and above both of the exhaust manifolds/headers). Mark these spots
with a pen, remove engine, and clearance the firewall accordingly. Lower
the engine back in and check the clearance. Using the supplied hard-
ware, attach the engine plates to the block. When secured, guide the
upper mount portions through the frame brackets and bolt them into
place. Take the four large 1/4” spacers (2 per side) and trial fit them to
get a comfortable front-to-rear engine placement. These mounts have
up to 1/2” movement front-to-rear to account for any differences in
frame locations and to “fine tune” engine placement. Use the 1/2” bolts
and nylon nuts to secure the engine to the frame. Bolt the steering pillow
block assembly to the mount. Take a quick look around the engine and
steering to make sure there are no clearance issues. You should have just
enough room to fit your hand between the engine and firewall/frame.
Gauge Wiring:
The Chevy V-6 and the Jeep systems do not “speak the same language”. In our installations, we retained the stock Jeep
computer as well as installed the new 4.3L computer. We retained the stock Jeep sending units and attached them to the
GM block (oil pressure, temperature, and fuel level). All of them work fine except the tachometer. An aftermarket
tachometer would be the easiest option at this point, or a “black box” to modify the signal. Since you are using the stock
sending units, the Jeep computer thinks that the original engine is still sending information. The Jeep service manual
identifies the color coded wires in the harness; we retained the ones for the gauges and the other leads that are not used