Intake And Exhaust Manifold Installation; Intake Manifold Replacement; Manifold Tightening Sequence - Jeep J-10 Series 1982 Technical & Service Manual

1B-44 ENGINES
Intake and Exhaust Manifold Installation
Instillation
Ensure all fittings are transferred to replacement
manifold.
(1) Position exhaust manifold over end studs on
cylinder head and install positioning sleeves over end
studs.
(2) Secure exhaust manifold to head at positions 1
and 2 (fig. 1B-68). Tighten bolts with 23 foot-pounds (31
N«m) torque. Remove positioning sleeves.
(3) Loosely connect EGR tube to intake manifold.
(4) Position intake manifold gasket over dowels and
flush against head.
(5) Position intake manifold over dowels and flush
against gasket. Loosely connect EGR tube to exhaust
manifold.
(6) Secure intake manifold to head at positions 3
and 4 (fig. 1B-68). Tighten bolts with 23 foot-pounds (31
Nm) torque.
(7) Install remaining bolts at positions 5 through 10
and nuts at positions 11 and 12 (fig. 1B-68).
(8) Tighten bolts and nuts according to sequence
depicted in figure 1B-68 with 23 foot-pounds (31 N*m)
torque.
(9) Tighten EGR tube fitting with 30 foot-pounds
(41 N«m) torque.
Rg. 1B-68 Manifold Tightening Sequence
41887
(10) Position flange gasket and connect exhaust pipe
to exhaust manifold flange. Tighten nuts with 20 foot
pounds (27 N«m) torque. Install oxygen sensor, if
removed.
(11) Connect fuel pipe and air horn vent hose to car
buretor. Connect solenoid wire connector and vacuum
hose.
(12) Install A/C drive belt idler pulley assembly, if
removed.
(13) Install air pump, if removed.
(14) Install air pump/power steering pump mount
ing bracket, if removed.
(15) Install diverter valve. Connect air hoses to air
pump and check valve. Connect vacuum hose.
(16) Install drive belt(s) and tighten to specified ten
sion. Refer to Chapter 1C—Cooling Systems.
(17) Install vacuum advance CTO valve vacuum
hoses.
(18) Connect vacuum hose to EGR valve.
(19) Connect throttle cable and PCV hose. Connect
throttle valve rod, retainer and spring. Connect intake
manifold heater wire.
(20) Connect coolant hoses to intake manifold.
(21) Install air cleaner.
WARNING: Use extreme caution when engine is oper
ating. Do not stand in direct line with fan. Do not put
hands near pulleys, belts or fan. Do not wear loose
clothing.
(22) Start engine and inspect for air leaks into vac
uum fittings, and exhaust and coolant leaks.
Intake Manifold Replacement
(1) Remove air cleaner.
(2) Disconnect heater wire from choke cover termi
nal, solenoid wire and vacuum hose.
(3) Disconnect carburetor control shaft from
carburetor.
(4) Remove intake manifold from engine. Refer to
Intake and Exhaust Manifold Removal for procedure.
(5) Remove carburetor from intake manifold and
set aside. Remove carburetor insulator block.
(6) Remove carburetor mounting studs from intake
manifold.
(7) Remove throttle control bracket.
(8) Remove EGR valve and studs and install in re
placement manifold.
(9) Remove intake manifold heater and install in
replacement manifold.
(10) Install throttle control bracket. Tighten nuts
with 24 to 48 inch-pounds (3 to 5 N«m) torque.
(11) Install vacuum hose fittings.
(12) Install intake manifold. Refer to Intake and Ex
haust Manifold Installation for procedure.
(13) Install vacuum hoses.
(14) Install carburetor studs, replacement gaskets
and spacer.
(15) Install carburetor and connect linkage, fuel pipe
and hoses.
(16) Tighten carburetor mounting nuts with 14 foot
pounds (19 N«m) torque.
(17) Connect and choke heater wire to choke cover
terminal. Connect solenoid wire connector and vacuum
hose.
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