Question 1

How to properly work on the exhaust manifold on Volvo 740?

Accepted Answer

Prior to working with the exhaust system, it is a good idea to saturate the retaining hardware with a good rust penetrant, and allow at least 10-15 minutes for it to work. For 2.3L 4-cylinder engine, remove the negative battery cable, remove the air cleaner and related necessary hoses, remove the EGR valve pipe on the manifold and remove the exhaust pipe on the exhaust manifold. Next would be the turbo, turbo pipes and attaching hardware, then the manifold nuts and manifold itself. To install, seat the manifold with a new gasket, tighten the manifold bolts to 10-20 ft. lbs. (14-27 nm) and reinstall the turbo, turbo pipes and EGR valve pipe, the air cleaner and hoses, and finally reconnect the negative battery cable and start the car to check for leaks. For the 2.8L 6-cylinder engine, to start, you should disconnect the negative cable of the battery, safely lift and support the car and unbolt the crossover pipe on the exhaust manifolds. If equipped with a Y-type exhaust pipe, disconnect it at the left and right manifolds, remove any other necessary hardware and the manifold nuts before taking out the manifold(s) from the cylinder head(s). When installing, install manifold(s) on cylinder head(s) with new gaskets, tighten manifold bolts to 7-11 feet pounds (10-15 newtons), reconnect Y or crossover pipe, reinstall removed hardware, lower vehicle, reconnect negative battery cable, start vehicle and check for leaks. For the 2.9L 6-cylinder engine, disconnect the negative battery lead, exhaust pipe mounting nuts at the manifold joints, or heat shield, remove the exhaust manifold mounting nuts and gasket. Before installing, have the mating surfaces cleaned, install a new gasket and place the exhaust manifold. Fit the mount lifting lug, tighten the mounting nuts to 18 ft. lbs. (25 Nm) and fit the heat shield and front exhaust pipe to the manifold using threadlocking compound and tighten to 44 ft. lbs. (60 Nm). Loosen the joint at the catalytic converter and re-tighten to 18 ft. lbs. (25 Nm) to avoid stress on the system and reconnect the negative battery lead and start the engine to check for leaks. have to be disconnected: For the 2.3L and 2.4L 5-cylinder engines, disconnect the negative battery cable, make the vehicle higher and support it, disconnect the exhaust pipe from the exhaust manifold by taking off the nuts. If equipped, remove the turbo and turbo parts, then remove the carriage bolts and heat shields and the bolts on the exhaust manifold. Push the manifold towards the firewall and lift it out. For installation, check and clean the surface of the gaskets that is cylinder head, make the exhaust manifold with new gaskets, align the exhaust manifold with the pipe using carriage bolts, use locking compound on the threads of the exhaust manifold bolts, tighten it to 18 ft. lbs. (25 Nm). Reinstall turbo and its components, the heat shields and tighten the carriage bolts with thread sealing compound, make sure that the nuts are tightened to no more than 86 inch lbs. (10 Nm) with springs and washers. Finally, re-connect the negative battery cable and start the engine to check for leaks.

Question 2

How to remove the Exhaust Manifold on Volvo V40?

Accepted Answer

To remove the components from non-GDI engines, first disconnect the battery negative lead then undo the securing screws and remove the cover panel from the top of the engine. For turbo models, remove the turbocharger and then the air cleaner assembly and hot air inlet duct from the manifold heat shield. Next, undo the bolts holding the heat shields to the exhaust manifold and the engine compartment bulkhead, maneuvering the heat shields out from behind the engine, making note of the limited clearance. Jack up the front of the car and place it on axle stands, undo the nuts holding the exhaust front pipe flange to the manifold and recover the tension springs (if fitted) Lower the car to the ground and undo the nuts and spring-loaded bolts that hold the manifold to the cylinder head starting with the innermost nuts. Move the manifold backwards off the cylinder head studs, pull the front pipe flange joint, pivot the manifold through 90 degrees to the right and force it out the back of the engine, careful because of the limited space. Recover the front pipe flange joint gasket or sealing ring, individual manifold to cylinder head gaskets. For GDI engines, the process starts out much the same with battery disconnection and manipulation of the cover panel followed by the disconnection of the downpipe from the manifold. Remove bolts holding heat shield over manifold, taking good fit tool and penetration lubricant to possible corrosion damage. Take out the two bolts from underneath holding the manifold to the cylinder block mounting bracket, then remove the nuts and washers holding the manifold to the cylinder head and slide the manifold off the studs and recover the gasket for replacement (during refitting). If any studs were removed they can be refitted using two nuts tightened against each other with the recommendation to use thread locking fluid for any studs that need to be renewed. Refitting includes working backward and ensuring to put any studs back into the cylinder head with thread locking fluid, thoroughly cleaning the mating faces of the manifold and cylinder head and using new gaskets for the manifold head and the front pipe-to-manifold joint (a new sealing ring or flange gasket), refitting the turbocharger and tightening the nuts and bolts to recommended torque.

Genuine Volvo Exhaust Manifold

35 Exhaust Manifolds found

Volvo Exhaust Manifold, Driver Side Part Number: 9207906

Volvo Exhaust Manifold, Passenger Side Part Number: 9486418

Volvo Exhaust Manifold, Driver Side Part Number: 9486419

Volvo Exhaust Manifold Part Number: 9497861

Volvo Exhaust Manifold Part Number: 30637921

Volvo Exhaust Manifold Part Number: 30646951

Volvo Exhaust Manifold Part Number: 8675253

Volvo Exhaust Manifold, Passenger Side Part Number: 8603063

Volvo Exhaust Manifold, Driver Side Part Number: 8603064

Volvo Exhaust Manifold, Passenger Side Part Number: 36000178

Volvo Exhaust Manifold, Passenger Side Part Number: 36000213

Volvo Exhaust Manifold, Passenger Side Part Number: 36000380

Volvo Exhaust Manifold, Driver Side Part Number: 36000399

Volvo Exhaust Manifold, Passenger Side Part Number: 36001151

Volvo Exhaust Manifold, Driver Side Part Number: 36001152

Volvo Exhaust Manifold, Passenger Side Part Number: 36001274

Volvo Exhaust Manifold, Driver Side Part Number: 36001275

Volvo Exhaust Manifold, Driver Side Part Number: 36000170

Volvo Exhaust Manifold, Passenger Side Part Number: 36000169

Volvo Exhaust Manifold Part Number: 8250520

Volvo Exhaust Manifold Parts and Q&A

Related Volvo Parts

Browse by Model