Vegetable oil?

[Snowride]

With just thin oil, wouldn't there be some water leakage up the flex tube?

Only if the tube top is located below the water line.

[Rich]

So we have the veg oil, chain saw bar lube, and Castor oil, all can be environmentally friendly I think Ill give them all a shot once I get the hull built.

[domwilson]

Just for good measure, I would put a piece of fuel tubing on the stuffing tube between the motor collet to act as a seal. Water tends to travel up the stuffing tube while running. This is a result of the flex "carrying" the water up. Plenty of seasoned boaters here will tell you the same.

[martin]

The silicon fuel or water tube fitted to the motor end of the stuffing tube works really well keeping water out.

[Rich]

Thank you gentlemen, I already have plans for one of those seals, Fluid had posted a pic on a different thread of what he did.

[Rich]

The oiler is done and so is the boat. Here is the link to my build http://forums.offshoreelectrics.com/...d-aka-Fountain
So far I have tired peanut oil as I have heard it can with stand higher temps, not that I plan on having my flex get hot at all. It is a pretty thin oil and showed me where I have a few leaks, one is the flex inside the hull (which I will use a piece of fuel tubing) and the other is the seal that holds the stuffing tube. Not a big deal just have to get time to do it. Other than that is works out good so far....more to come
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[Vortech C5]

The oiler is done and so is the boat. Here is the link to my build http://forums.offshoreelectrics.com/...d-aka-Fountain
So far I have tired peanut oil as I have heard it can with stand higher temps, not that I plan on having my flex get hot at all. It is a pretty thin oil and showed me where I have a few leaks, one is the flex inside the hull (which I will use a piece of fuel tubing) and the other is the seal that holds the stuffing tube. Not a big deal just have to get time to do it. Other than that is works out good so far....more to come
[ATTACH=CONFIG]74073[/ATTACH]

That oil reservoir looks amazing. Where did you buy it from? GREAT build!

[JIM MARCUM]

Rather than the relatively thin oils mentioned above, I prefer good quality marine grease. It is also less likely to allow water to wick up the stuffing tube & cause leaks. JIM

[Rich]

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Rather than the relatively thin oils mentioned above, I prefer good quality marine grease. It is also less likely to allow water to wick up the stuffing tube & cause leaks. JIM

I use Grimracer speed grease on my other boats but I noticed that I still need to put fuel tubing on the flex prevent water from coming in the hull. I have never had a leak bad enough to worry though, just wipe it with a paper towel and go. I am working on a way to use thicker grease with my reservoir and I think I came up with a way but need to test it first....

That oil reservoir looks amazing. Where did you buy it from? GREAT build!

Thanks Vortech! I did not buy this reservoir though, I machined it out of 3/4" round 7075 T651 aircraft aluminum. Took a bit of time but it came out pretty good. I also wrote a program for the punch press I run to punch out the carbon fiber pieces you see on the reservoir.

[Rich]

I took apart my boat for paint and I noticed the gum-up that some have mentioned with these types of oils. I think I need a thicker oil compared to peanut oil. I am going to try the chain saw bar lube next and see how it goes....