NEdwards87
New member
I recently bought a single owner 1968 Boston Whaler 13 with the 35 horse Chrysler on it. To my amazement, after sitting for seven years, with some fresh gas it fired right up and ran perfectly. He told me that the last time it was out it was leaving an oil slick on the water. The lower unit oil was changed every fall even if it wasnt used because he was afraid the condensation would freeze and crack the lower unit. He never saw any water in the gear oil at all at any time. If you remove the motor from the boat and lay it prop side down and carb side up, and looking at the upper left hand bolt that holds the lower unit on, there is a small diameter hole there. It looks to be a factory hole. It is very close to the upper (vent) screw on the lower unit. There is oil and exhaust coming from here and that is what is causing the oil slick on the water. After running it in a bucket for approx 30 mins, the water in the bucket was milky and when the motor was tilted to transport, oily water came from this hole. I started it (5 seconds max) and found that exhaust is also coming from the hole. I drained the lower unit oil and found no trace of water. HELP!! Is this normal? Just needs to be ran possibly? I don't want to take it apart if I don't have to
Last edited: