We replace the intake pipe gasket when repairing the engine, as well as when the gasket is worn, when tightening the bolts fails to eliminate air leakage
A leak in the high pressure circuit of the intake system will result in a reduction in the amount of air supplied to the cylinders during engine operation, and a deterioration in its performance.
To replace the intake pipe gasket, you will need tools: a socket head for 8, wrenches for 10, for 13, for 17, a flat-blade screwdriver.
Preparing the car for work.
Disconnect the negative battery terminal.
Drain the liquid from the cooling system.
We move the protective cap from the terminal of the air heater in the intake pipe.
Unscrew the nut securing the power wire tip, holding the terminal nut from turning with the second key, and disconnect the tip from the terminal.
We press the latch and disconnect the wiring block from the boost pressure and intake air temperature sensor
Remove the bypass pipe
Weaken the clamp of the pipeline from the cooler to the intake pipe, disconnect the pipeline and take it aside
We unscrew the bolt of the holder of the oil level indicator guide and disconnect the guide from the intake pipe
Squeeze the latch and disconnect the wire block from the air damper drive assembly
Unscrew the three bolts and remove the air damper assembly
Unscrew the nut securing the fuel supply pipe to the fuel rail.
The fittings must be cleaned before disconnecting the high pressure pipe.
We unscrew the bolt "A" of the intake pipe, which simultaneously attaches the bracket of the fuel pipe and the wiring harness, then loosen the tightening of the bolt "B" of the fuel pipe retainer by several turns.
Remove the tube from under the latch on the inlet pipe
Unscrew the nut securing the fuel supply pipe to the rail, holding the fitting from turning
Disconnect the tube from the pump fitting
Pick up the phone
Remove the thermostat housing (it blocks access to the lower front bolt of the intake pipe)
Pry off the harness holder
Disconnect the harness from the intake pipe
Unscrewing the threaded post
We unscrew the eight bolts securing the intake pipe
Removing the pipe
We separate the intake pipe gasket from the head of the block with a knife and remove it.
We clean the mating surfaces of the block head and the intake pipe from the remnants of the gasket and wash them with a solvent.
Installing a new gasket. The sealing bead on the gasket must point towards the intake pipe.
Install the intake pipe and all parts in the reverse order.
We apply an anaerobic thread locker to the threads of the bolts and the rack.
We tighten the bolts and the threaded stand of the inlet pipe with a torque of 10 Nm, in the order shown in Figure 22.