Hello! I must repair exhaust system in my own Volvo 740.
I think that exhaust system is original ( the year 1988 , 400 000km). The car noisily works and at times , has a small power (the probably back silencer can be blocked up remainders of the central silencer and may be to choke the engine, is the truth??).
The exhaust manifold is all conoded, on exterior and screws holding of him to the cap, are all damage (conoded)...gasket is conoded.
I think that when I will touch these screws then they will fall off. Is some possibility, that to screw on afterwards again the exhaust manifold, without taking out of the engine or openings of the cap??