acubria
Member II
I spent a day in the boat cleaning and doing a bit of maintenance. This is literally my second week trying to understand marine diesel motors ( or any motor) , so bear with me if my questions are too basic. BTW, my gear box keeps working great since I flushed it and added 250ml of SAE30 heavy duty oil.
My questions relate to the photos attached:
Any comments will be really appreciated !
My questions relate to the photos attached:
- When I start the motor after it has been sitting for days, a black oily and slimy looking matter comes out of the exhaust. See photo. Is this normal? Do I have to clean the exhaust elbow? any comments?
- I changed the motor anode today. See the old one ! In the 3rd photo you can see how dirty it is inside the anode's housing. Is this normal? I cleaned a bit around the opening but did not attempt to clean inside of it. Does my raw water system needs some kind of treatment? Vinegar flush??
- I changed the impeller. This photo shows the old impeller was installed with the arms pointing in the wrong direction..... (?). I installed the new one with the arms oriented the opposite way as per the Yanmar manual which makes sense as the impeller turns counterclockwise. Did I do this correctly?
- My fuel gauge either stays on zero, or if I tap it with my knuckle, it will jump erratically between what I think is the correct level and zero. It jumps around for a bit and then goes back to zero. Any ideas how to fix this? See photos 4 and 6 show the top of the fuel tank and the back of the fuel gauge.
- My stuffing box does not leak at all. I do see a faint hint of humidity in the gap between the stuffing box and the shaft. Is this enough?. I touched the stuffing box after about 30minutes of motoring and it was cool as a cucumber. Is 30m enough to test it? I am planning a 10 hour trip that may consist in a lot of motoring and I am a bit concern about it.
Any comments will be really appreciated !