Era Replica Automobiles 427 ROADSTER, Assembly And Service Manual

Page: 138 / 165

SECTION G - BODY/INTERIOR
138
FINAL INSTALLATION HINTS
Use gaskets coated with high temperature silicone (such as
Permatex Ultra Copper 81878) on both sides. Special
exhaust-tolerant silicone is available at most automotive
supply stores. Loosely bolt the primary pipes to the
engine.
Spread a small amount of silicone or Walker Acousti-seal
on the inside of the collector pipes and install the side
pipes over the primaries.
With the rear of the side pipes propped up, slip the end of
the side pipe through the body. Hold the side pipes up
against the ends of the primaries and start the primaries
into the side pipes one by one. Once all are inserted, push
all the way on. A rubber hammer sometimes helps to get
the pipes fully seated.
Stainless steel side pipes may benefit from Walker Acoustic-
seal exhaust sealant between the primary pipes and the side
pipes.
Loosely bolt the front brackets together and the rear
brackets to the rubber hanger.
Tighten the bolts holding the primary pipes to the cylinder
heads. A modified wrench (see special tools on page 29 )
will make tightening the rear drivers side flange much
easier.
Re-torque the bolts after the engine is run and
periodically thereafter.
EXHAUST SYSTEM, UNDER-CAR
For side pipe installation, see page 136.
INSTALLATION
Install insulation on the underside of both the floors to
minimize heat transfer into the passenger compartment:
See page 137 for instructions on welding the tabs
between the collector and privary pipes.
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
Glue or rivet 1 /
8
" aluminum or stainless faced
insulation onto the bottom of the floors.
Alternately, you may wrap the exhaust pipes and
mufflers.

Add jute or foam insulation underneath the rugs.
Install both sets of primary pipes as described in the side-
pipe section. The flange bolts on #8 cylinder may require
the special wrench shown on page 29. Also see the “Final
Installation Hints” for the side pipes.
Fit the collector pipe onto the primary pipes.
The exhaust hanger mounting holes are on the floor
transverse supports: One in the front support, two in the
rear.
Mount the muffler with the inlet offset to the outside.
Install the intermediate and tail pipe
Position the entire system to leave clearance between it
and the frame. Tighten all bolts and clamps.