Section 03 ENGINE SYSTEM
Subsection 02 (EXHAUST SYSTEM)
Detach holding strap retaining resonator inside
bilge.
Pull resonator out of bilge.
Muffler
Disconnect hoses from muffler no. 11.
On GTI RFI and GTI RFI LE models, disconnect
hoses of the water flow regulator valve.
F01E1FD
1 2
TYPICAL
1. Water supply hose
2. To injection fitting on tuned pipe
Disconnect retaining strap no. 2 of muffler.
Pull muffler no. 11 outofbilge.
REPAIR
Tuned Pipe
This procedure is given to repair tuned pipe cracks
using T.I.G. welding process.
– Sand the cracked area to obtain bare metal.
– Perform a 1.50 mm (1/16 in) depth chamfer over
crack.
– Use pure argon gas with 5.55 mm (3/32 in)
tungsten electrode (puretung “green”, zirtung
“brown”) and AC current.
– Use a 5.55 mm (3/32 in) aluminum welding rod
(no. 4043), to fill crack.
– Sand welding slightly to remove material sur-
plus.
Test
– Usecompressedairat124kPa(18PSI)topres-
surize tuned pipe.
CAUTION: Always ensure water passages are
not blocked partially or completely while weld-
ingtunedpipe.
NOTE: Prior to verify leaks, plug all holes and pres-
surize tuned pipe while immerging it in water.
INSTALLATION
Installation is essentially the reverse of removal
procedures. However, pay particular attention to
the following.
Exhaust Manifold
For installation procedure of the exhaust manifold
no. 14, refer to to the 717/787 RFI ENGINE SHOP
MANUAL.
Tuned Pipe
717 Engine
Ensure rubber bushings no. 19 and sleeve no. 18
are not damaged and are properly installed into
tune pipe support.
CAUTION: Damage to bushings and/or sleeve
will eventually cause stress to tuned pipe and
may cause cracking.
Make sure that gasket no. 16 is properly located
on exhaust manifold prior to finalizing pipe instal-
lation.
Apply Loctite 243 (blue) (P/N 293 800 060) on nut
no. 8 and screws no. 6 and no. 12.
NOTE: Hand tighten all fasteners before torquing
any of them. For torquing sequence, see the fol-
lowing illustrations.
48 smr2005-048
To Next Page
Loading...
