B1EE0EK1 - 307 DV4TD ENGINE

PRESSURE CHECK AT THE END OF COMPRESSION

1 - SPECIAL TOOLS

[1] Dummy plug + compression meter adapter (-).0188-U .

[2] Engine flywheel retaining pin ø 12 (-).0194-C .

[3] FACOM 910A type sealing checker .

[4] Diesel engine adapter - FACOM 910.A6 type .

2 - CHECK

Ensure that the speed of engine rotation, driven by the starter, is correct (Minimum value : 250 rpm) .

Check to be made .

Disconnect :

• the battery
• the engine control ECU
• the pre/post-heat plugs supply

Insulate the glow plugs supply lead .

Remove :

• the style cover
• the upper integral intake system
• the glow plugs

Position :

• the tool [1] and its adapter in cylinder n° 1 : tightening torque 1 da.Nm (flywheel end)
• compression tester

Connect the battery .

Measure the end of compression pressure on the cylinders 1 - 2 - 3 - 4 in order :

• the maximum permissible difference between cylinders is 5 bars

NOTE : if the values are low, before considering an engine overhaul, check the condition of the air filter and cylinder head gasket .

3 - COMPRESSION LOSS MEASUREMENT

Check to be made : Engine cold .

Insert the flywheel stop [2] .

Turn the engine over until it locks .

Determine which cylinder is at the end of compression phase 1-2-3-4 using the tools [1] - [2] - [4] .

Tighten tool [1] to 0.9 daN.m .

Connect the measuring equipment using the modified end piece (see equipment instructions) .

Read the loss of compression : Average value 20% .

If the value is incorrect, faulty parts can be located by locating the noise made by the passage of air .

Repeat the operation for the 3 other cylinders, carrying out 1/2 revolution of the crankshaft each time .