aq170c

[Roger Factor]

did volvo make more than one type of exhaust manifold for the aq170c? I need to replace the exhaust elbow and the one that I found does not have a port for pressure relief valve, is this really necessary.

 

[boatdoc55]

They made two types. One elbow has 3 bolts that hold it on and the other was 5. The valve was to let it start a little easier when the engine got a little tired. It didn't have to push all the exhaust thru the drive with the valve.