
8
www.vintageair.com
901277 REV F 11/18/16, PG 8 OF 24
Firewall Cover Installation
1.
2.
3.
Install (3) grommets onto the firewall cover as shown in Figure 4, below.
Apply a 1/4” bead of silicone around the mating surface of the firewall cover as shown in Figure 4a, below.
Secure the firewall cover to the firewall using (4) 1/4-20 x 1” hex bolts, flat washers and nuts, and (1)
#10 x 1/2” sheet metal screw (See Figure 4, below).
NOTE: The firewall cover installs on the engine
compartment side of the firewall.
Figure 4a
Figure 4
#10 x 1/2”
Sheet Metal
Screw
Silicone
Engine
Compartment
Side of Firewall
Firewall
Cover
642068
Grommet
33137-VUI
Grommet
33134-VUI
Grommet
33135-VUI
(4) 1/4-20 x 1”
Hex Bolts
and Washers
OEM Dimple
Drill 1/8” Hole
(4) 1/4” Nuts
with Star Washers
(4) 1/4” Flat
Washers
OEM Heater
Core Holes
(4) OEM
Blower Motor
Mounting Holes
OEM Blower Motor
Hole in Firewall