CONTINUOUSWAVE

Thanks JimH and MarkCz. I made another recording , this time on the water at 30-MPH. It appears as though the swivel tube "leak" is not coming up from the shift shaft. It's more likely that the rushing water is deflecting off the engine mount and lower unit, then making its way up the swiv...

jimh wrote:The leaning post seat with storage shown in the image above is a Boston Whaler accessory for larger OUTRAGE boats. It would not be a good fit on a 16-footer.

Understood.

Is there is a company with a website that sells something similar in a smaller application?

From what vendor can a leaning post seat be purchased that is similar to the leaning post seat shown below?



I want to purchase a leaning post seat with storage for my 1971 Nauset 16.

[The behavior shown in the recording is] good news. With my engine water leak, as the engine speed increased a much larger amount of water would exit and shoot all the way up the swivel tube. [Your engine] may just have a small leak at the top of the housing for the water pump. As long as [the engi...

Watch my recording of a flush test that shows the flow of the leak did not change with engine speed when the engine was being run out of the water--I'm completely at a loss. Per recommendation, I checked the flow rate of the leak at various engine speeds. The flow of leak didn't change with engine s...

In figure 3, call out 9 is the Swivel Pin Assembly (Part #99661A35)

https://www.crowleymarine.com/parts/6469.cfm

First off the steering tube has no connection to the water pump, meaning that no water should be pumped from the water pump out of that tube. The tube is hollow and... After watching your second presentation make sure the copper tube that seats into the waterpump housing is seated correctly... Unde...

On a 2006 Mercury Optimax 75 water comes up and out the top of the swivel assembly where the shift shaft threads. IMG_4307.jpg IMG_4310.jpg Capture.JPG I only see this excess water during flushing, at boat speeds greater than 30-MPH, and at engine speeds greater than 5,000-RPM. Is this normal? Did I...

Thanks MarkCz.

I changed the oil and gaskets. [The gear case] seem to be holding [the new lubricant]. I will inspect mid-season of 2021.

While draining the gear lube on my 2006 Mercury 75-Optimax Serial 1B318814, before any oily came out a couple of ounces of water came out [from the gear case drain-fill] . [The gear case lubricant] had a brownish milky look. lubricant.jpg I inspected the propeller [shaft] bearing seals and drain-fil...

UPDATE 10/23/17:

Repair worked. I still can be sure the exact culprit but I'm pretty positive it was the Valve Kit Inlet.

Glad to be back up and running.

Update: 9/14/17 I have disassembled the entire Vapor Separator and did NOT find any significant debris or aluminum shavings. Basically nothing that is obviously the concern. Other than some minor corrosion and the Valve Kit Inlet seeming to have some carbonization on the tip, I can't pinpoint the co...

This is my first post and I am excited to become a new user of continouswave. What would be causing my 2006 Mercury Optimax 75-HP DFI, three-cylinder, 1.5-liter, two-stroke engine to dump fuel out of the overflow port right into the ocean or on my driveway? The engine is in great shape with only (ro...