837472 Volvo.Penta Thermo monitor

Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Dispose of all fluids according to local regulations and mandates.
Do not let the tops of fuel injectors turn when the fuel line nuts are loosened or tightened.The fuel injectors will be damaged if the top of the injector turns in the body.The engine will be damaged if a defective fuel injector is used because the shape of fuel (spray pattern) that comes out of the nozzle will not be correct.
Note: Place identification marks on all tube assemblies for installation. Plug all lines and tube assemblies to prevent contamination.
Turn the fuel supply to the OFF position.
Illustration 1 g01326550
Typical example
Disconnect nuts (1) for fuel injection lines (2) from the fuel injectors.
Disconnect nuts (1) for fuel injection lines (2) from the fuel injection pump.
Remove fuel injection lines (2) from the engine as a unit.
Use suitable caps to plug the open ports of the fuel injection pump immediately.
The C1.5 and C2.2 engines have a rigid fuel return line.For engines with a rigid fuel return line, remove banjo bolt (4) from fuel return line (3). Remove washers (8).The C1.1 engine has a flexible fuel return hose.For engines with a flexible fuel return hose, disconnect the hose from the fuel injection pump.
Illustration 2 g01326555
Typical example
Remove nuts (5) from fuel injectors (7).Note: For engines with a rigid fuel return line, ensure that the fuel return line is not distorted when the nuts are loosened.
Remove fuel return line (3) and washers (6) from fuel injectors (7).
Use suitable caps to plug the fuel injectors immediately.Installation Procedure
Table 1
Required Tools
Tool Part Number Part Name Qty
A 276-1216 Injector Pipe Nut Tool 1
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Do not let the tops of fuel injectors turn when the fuel line nuts are loosened or tightened.The fuel injectors will be damaged if the top of the injector turns in the body.The engine will be damaged if a defective fuel injector is used because the shape of fuel (spray pattern) that comes out of the nozzle will not be correct.
Note: The installation procedure is similar for the three cylinder and the four cylinder engines.
Illustration 3 g01326555
Typical example
Remove the caps from fuel injectors (7). Install new washers (6) and fuel return line (3) to fuel injectors (7).Note: The washers (6) have two small holes.
Install nuts (5) to fuel injectors (7).
The C1.5 and C2.2 engines have a rigid fuel return line.For engines with a rigid fuel return line, install new washers (8) to fuel return line (3) and install banjo bolt (4) to the fuel injection pump. Tighten banjo bolt (4) to a torque of 7 N m (62 lb in).The C1.1 engine has a flexible fuel return hose.For engines with a flexible fuel return hose, connect the fuel return hose to the fuel injection pump.
Tighten nuts (5) to a torque of 27 N m (239 lb in).
Illustration 4 g01326550
Typical example
Remove the caps from the outlet connections of the fuel injection pump. Install the fuel injection lines to the engine as a unit.
Connect fuel injection lines (2) to fuel injectors (7). Tighten the union nuts (1) finger tight.
Use Tooling (A) to tighten union nuts (1) at the fuel injection pump.Tighten the union nuts (1) to a torque of 23 N m (204 lb in).Note: Tighten the center union nuts first.
Use Tooling (A) to tighten union nuts (1) at the fuel injectors.Tighten the union nuts (1) to a torque of 23 N m (204 lb in).
Turn the fuel supply to the ON position.
Prime the fuel system. Refer to Operation and Maintenance Manual, "Fuel System - Prime" for more information.