Originally Posted by tim2658
It doesn't smoke at all when on the water and for the last two months the boat was flying well for a pacific, it was jumping on to the plane and black smoke was pouring out when under load, I was getting 26knots but now only 17 !! Could a damage hose on the turbo cause this only because they aren't in the best of condition !!
yes! I think there is a small hose from the manifold to the pump which measures turbo boost & tells the pump to shovel more coal on, if that's split then the pump will not supply enough fuel
if its an air leak between the turbo & manifold you would expect loads of black smoke
my first step would be to find a gauge & measure the turbo boost it doesn't need to be anything fancy any pressure guage that can read up to about 20psi will do
im not sure what pressure they run at but it shouldn't be too difficult to find out the boost pressure required