Home › Forum › Ask A Member › Johnson 5.5 HP seahorse 1958 cd 15 › Reply To: Johnson 5.5 HP seahorse 1958 cd 15
There is no need to worry about the two line pressure tank, it will not blow up. There is a pressure relief valve inside just in case it does develop too much pressure. Just make sure it is clean inside, the tank isn’t much good if the inside is rusted/fouled. There is no reason to “convert” this engine to use a fuel pump, this conversion is not very easy on these engines because they have no intake bypass covers. These are amazing engines, and don’t smoke much, even at the necessary fuel/oil mix of 16:1. Don’t listen to anyone who recommends using less oil, regardless of “today’s improved oils”. These engines have plain connecting rod bearings that are prone to failure if less oil is used.