Peugeot 405 Manual

Engine/transmission mountings - inspection and renewal
XU petrol engine in-car repair procedures / Engine/transmission mountings - inspection and renewal


Inspection
1 If improved access is required, raise the front of the car and support it securely on axle stands (see УJacking and Vehicle SupportФ).

2 Check the mounting rubber to see if it is cracked, hardened or separated from the metal at any point; renew the mounting if any such damage or deterioration is evident.

3 Check that all the mountingТs fasteners are securely tightened; use a torque wrench to check if possible.

4 Using a large screwdriver or a crowbar, check for wear in the mounting by carefully levering against it to check for free play.

Where this is not possible, enlist the aid of an assistant to move the engine/transmission back and forth, or from side to side, while you watch the mounting. While some free play is to be expected even from new components, excessive wear should be obvious. If excessive free play is found, check first that the fasteners are correctly secured, then renew any worn components as described below.

Renewal
Right-hand mounting - 1580 cc, 1761 cc and 1905 cc models 5 Disconnect the battery negative lead.

Release all the relevant hoses and wiring from their retaining clips, and position clear of the mounting so that they do not hinder the removal procedure.

6 Place a jack beneath the engine, with a block of wood on the jack head. Raise the jack until it is supporting the weight of the engine.

7 Slacken and remove the three nuts securing the right-hand mounting bracket to the engine. Remove the single nut securing the bracket to the mounting rubber, and lift off the bracket.

8 Lift the rubber buffer plate off the mounting rubber stud, then unscrew the mounting rubber from the body and remove it from the vehicle. If necessary, the mounting bracket can be unbolted and removed from the side of the cylinder head.

9 Check all components carefully for wear or damage, and renew them where necessary.

10 On reassembly, screw the mounting rubber into the vehicle body, and tighten it securely. Where removed, refit the mounting bracket to the side of the cylinder head, and securely tighten its retaining bolts.

11 Refit the rubber buffer plate to the mounting rubber stud, and install the mounting bracket.

12 Tighten the mounting bracket retaining nuts to the specified torque setting.

13 Remove the jack from underneath the engine, and reconnect the battery negative terminal.

Right-hand mounting -
1998 cc 8-valve and 16-valve models 14 Disconnect the battery negative lead.

Release all the relevant hoses and wiring from their retaining clips. Place the hoses/wiring clear of the mounting so that the removal procedure is not hindered.

15 Place a jack beneath the engine, with a block of wood on the jack head. Raise the jack until it is supporting the weight of the engine.

16 Undo the two bolts securing the curved mounting retaining plate to the body. Lift off the plate, and withdraw the rubber damper from the top of the mounting bracket.

17 Slacken and remove the two nuts and two bolts securing the right-hand engine/ transmission mounting bracket to the engine.

Remove the single nut securing the bracket to the mounting rubber, and lift off the bracket.

18 Lift the rubber buffer plate off the mounting rubber stud, then unscrew the mounting rubber from the body and remove it from the vehicle. If necessary, the mounting bracket can be unbolted and removed from the front of the cylinder block.

19 Check all components carefully for signs of wear or damage, and renew as necessary.

20 On reassembly, screw the mounting rubber into the vehicle body, and tighten it securely. Where removed, refit the mounting bracket to the front of the cylinder block, and securely tighten its retaining bolts.

21 Refit the rubber buffer plate to the mounting rubber stud, and install the mounting bracket.

22 Tighten the mounting bracket retaining nuts to the specified torque setting, and remove the jack from underneath the engine.

23 Refit the rubber damper to the top of the mounting bracket, and refit the curved retaining plate. Tighten the retaining plate bolts to the specified torque, and reconnect the battery.

Left-hand mounting
24 Remove the battery and battery tray, as described in Chapter 5. Slacken and remove the battery support plate mounting bolts.

Release the wiring from its retaining clip on the plate, and remove the plate from the engine compartment.

25 Place a jack beneath the transmission, with a block of wood on the jack head. Raise the jack until it is supporting the weight of the transmission.

26 Slacken and remove the centre nut and washer from the left-hand mounting. Undo the two bolts securing the mounting bracket assembly to the vehicle body, and remove the assembly from the mounting stud.

27 Slide the spacer off the mounting stud, then unscrew the stud from the top of the transmission housing, and remove it along with its washer. If the mounting stud is tight, a universal stud extractor can be used to unscrew it.

28 Check all components carefully for signs of wear or damage, and renew as necessary.

29 Clean the threads of the mounting stud, and apply a coat of thread-locking compound to its threads. Refit the stud and washer to the top of the transmission, and tighten it to the specified torque setting.

30 Slide the spacer onto the mounting stud, then refit the mounting bracket assembly.

Tighten both the mounting bracket-to-body bolts and the mounting centre nut to their specified torque settings, and remove the jack from underneath the transmission.

31 Refit the battery support plate, tightening its retaining bolts securely, then refit the battery as described in Chapter 5.

Rear mounting
32 Refer to Part A of this Chapter, Section 16.


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