Specification 4.0L (Discovery 3)

Recommended Lubricants

Name	Specification
Heated oxygen sensor thread	Use heat resistant anti-seize compound

General specifications

Name	Specification
exhaust manifolds	Metal, with an air gap and a branch pipe of the exhaust gas recirculation system (EGR) on the left manifold
Exhaust system	Two stainless steel exhaust pipes with stainless steel mufflers
Catalytic Converters - Type/Location	Closed cascade - located in each pipe with the passage of gases from top to bottom with sensors before and after the neutralizer in each pipe

Torque Specifications

Name	Nm	lb-ft
** HO2S	45	33
Clip of fastening of catalytic converter	55	40
Nut of fastening of the catalytic converter to the muffler with a fixing collar	48	35
Exhaust pipe	55	40
* Catalytic Converter to Exhaust Manifold Bolts	22	16

* Need to install new bolts
**Apply suitable heat resistant anti-seize compound