Note: A smear of grease may be used to retain the seals in the cylinder head during assembly.
2. Fit the silencer clamp ring and a new exhaust silencer gasket to the catalytic converter.
3. Align the exhaust header pipes to the cylinder head and the catalytic converter to the exhaust silencer.
4. Fit new nuts at the cylinder head, do not fully tighten at this stage.
5. Align the catalytic converter to the exhaust silencer and fit the clamp, do not tighten at this stage.
6. Tighten the header pipe to cylinder head nuts in the sequence shown below to 15 Nm.
![](https://motoinstruction.ru/img/triumph/15/121538.jpg)
Exhaust header tightening sequence
7. Tighten the silencer clamp ring to 5 Nm.
![](https://motoinstruction.ru/img/triumph/15/121539.jpg)
1. Clamp ring; 2. Exhaust silencer; 3. Catalytic converter
8. If removed, apply a thin smear of anti-seize compound to the threads of the oxygen sensor, install the oxygen sensor and tighten to 25 Nm.
9. Route the oxygen sensor harness as noted for removal and connect to the main harness.
10. Secure the oxygen sensor harness to the coolant pipe with the rubber band, as noted for removal.
![](https://motoinstruction.ru/img/triumph/15/121540.jpg)
1. Rubber band; 2. Connector; 3. Oxygen sensor
11. Check the rubber grommets are on the lugs of the catalytic converter and make sure the captive nut is positioned as noted during removal.
12. Slide the heat shield on to its retaining lugs on the silencer. Fit and tighten the fixing to 5 Nm.
![](https://motoinstruction.ru/img/triumph/15/121541.jpg)
1. Fixing; 2. Shouldered washer; 3. Heat shield; 4. Locating lugs
13. Ensure the exhaust silencer clamp is in the position shown below, with no parts of the clamp touching the sump or heat shield.
![](https://motoinstruction.ru/img/triumph/15/121542.jpg)
1. Clamp; 2. Exhaust silencer; 3. Catalytic converter
Perform the following operations:
- Radiator - installation
- Front sprocket cover - installation
- Battery - installation
- Start the engine and check for exhaust gas leaks. Rectify if necessary.
- Seat - installation