Look, do you have to check some details before removing the heads, there is first failure in one or more cylinders?, If so, remove the spark plug/s of the cylinder/s that this/n fails if it has water it is evident that there is a liquid passage problem to the cylinder, if so it results in one or more cylinders on a single side (head) you could only remove and brush that (at the other hand, on the other hand, on the other hand, on the other hand, on the other hand, on the other hand, you can only remove it (at the other hand, on the other hand, on the other hand. And there is no cylinder failure, it will be necessary to remove the admission to revive the joints and packaging, if the engine has a time band and not with chain it is not possible that the water pump causes you that fault, I hope it serves you greetings.