Check Valve
The check valve is mounted on the external air supply passage of the exhaust manifold. This is a one-way check valve which allows thermactor air to enter air supply passage, but prevents the reverse flow of exhaust gases.
The check valve is mounted on the external air supply passage of the exhaust manifold. This is a one-way check valve which allows thermactor air to enter air supply passage, but prevents the reverse flow of exhaust gases.