Lister Petter TR1, Workshop Manual

Page: 16 / 121

page 16
02.4 THE MANIFOLDS
Manifold Loading
A small, light exhaust silencer may be mounted
direct on the manifold, or on a light extension which
must be no more than 152mm (6ins) long.
Heavy exhaust silencers and air cleaners must be
remotely mounted, or mounted on the engine using a
special bracket, and connected by means of flexible
pipe or hose, with no solid extensions between the
manifold and the flexible element.
All joints must be gas tight.
WARNING
EXHAUST GASSES CONTAIN CARBON MONOXIDE
WHICH IS A COLOURLESS, ODOURLESS AND
POISONOUS GAS THAT CAN CAUSE
UNCONSCIOUSNESS AND DEATH.
CAUTION
Detrimental damage to the engine, or loss of performance,
may be caused if exhaust gasses are sucked in by the air
cleaner or the fan.
The exhaust manifold is made of cast iron and the
inlet manifold of light alloy, both are secured to the
cylinder head on studs and nuts which are torque
loaded.
Bolted to the side of the exhaust manifold is the
standard exhaust silencer which has provision for fitting
a tail pipe or a lightweight extension; the outlet of the
silencer tail pipe must face away from the engine.
Section 02
Engine Servicing and Adjustments
- manifolds
Removing the Manifolds - TS/TR
1. Remove the air cleaner and exhaust silencer.
2. Remove the nuts, spring washers and distance
pieces.
3. Unscrew and remove the cold start pots, if fitted.
4 Remove the manifolds.
Refitting the Manifolds - TS/TR
1. Fit new gaskets if necessary.
2. Refit the manifolds and torque the nuts to:
Top nuts - 21,ONm (15,5lbf ft).
Bottom nuts - 9,ONm (6.5lbf ft).
Removing the Manifolds - TX
1. Remove the air cleaner and silencer
2. Remove the nuts and spring washers retaining the
exhaust manifold and lift it off.
3. Remove the axial fan air cowling.
4. If a glowpiug is fitted remove the cable.
5. Remove the nuts and spring washers retaining the
inlet manifold and lift it off.
Refitting the Manifolds - TX
1. Fit new inlet and exhaust manifold gaskets.
2. Refit the inlet and exhaust manifolds and torque
the nuts to:
Inlet - 13.5Nm (10.0lbf ft).
Exhaust - 21.ONm (15.5lbf ft).
3. Replace the glowpiug cable.
4. Replace the axial fan air cowling.