I have a 1997 ProLine 23 WAC with a 5.7 XL Bravo II. Can anyone tell me what the 1/4" plugs on the back of the risers are for ? They are not hooked up to anything, are they for flushing ?
Thanks !
I assume your engine is raw water cooled.
Those openings with the plugs are where the raw water would exit in the case where you have a FWC'd system (including the manifolds).