Stuffing tube

[CraigP]

The stinger has to be flush with the transom, so if all that goop around the stuffing box isn't soft, you'll have to clean it up before mounting the stinger. I assume this pic was taken with the sealant just applied and the stingers ready to go on. Nice boat! I hope your ready for that, because she's going to be a handful! Looks like a zipper!

[Kram]

Hehe thanks! The stuffing tube is already glued in place 😊 Stinger will flush!

[Kram]

IMG_1604.jpgIMG_1605.jpgIMG_1607.jpg

Almost done! Just some adjustments and watercooling left :)

[CraigP]

Sweet! I want one!!

[Prodrvr]

Kram - why did you mount those motors so far forward?

[Kram]

Because i used som motor mounts where the angle of the flex cable would be too much... The motors are mounted like 10cm more to the back than the stock setup 😛 Pretty happy now so dont judge! Hehe

[Kram]

Tried the boat now.. Fast as hell!

One stinger got pretty hot... i greased the cable alot but i cant figure out what the problem is. I only ran the bot for like 5min to test it. Should not be that hot!

[CraigP]

Usually the stinger is not on center to the stuffing box. This causes the flex shaft to rub the stuffing tube. Also, check that there is enough grease in the strut, for the prop shaft to strut bushings. And, make sure you are using the right flex shaft on the appropriate side. You need a left turn flex shaft on the left side and a right turn flex shaft on the right. Stingers are water cooled, so something is very wrong for it to be so warm after pulling in out of the water.

[Prodrvr]

Stainless Steel ... It is much harder to bend. Don't even think about it unless you have a hand-help tube bender with 1/4" rolling wheels installed in the tool. I hope that helps...

I had to revisit this comment after getting some stainless tubing for one of my boats. Have you worked with it to pass that comment? I found it extremely easy to bend by hand on a 10" radius wood block. . It bent up a lot nicer than brass tubes.

[CraigP]

Yes, I had it installed and ran about 15-20 sessions on it... I was trying to bend by hand. I didn't have a 15" radius, which was my goal. I took it out because the clearance was too tight and it was pumping all the grease out the strut very quickly. It forms a very efficient screw type pump.

[Prodrvr]

What ss tube were you using?

[CraigP]

The 1/4" available at OSE. It says it has a 0.028" wall thickness. That's 0.012" thicker than the brass. So, 0.024" across the diameter. I tried sanding down the 3/16" flex shaft to make it a little less of a pump, but to now avail. Went back to a copper tube and the additional clearance stopped the excessive pumping action.

Note, I have a lip seal on the back of my strut to stop grease leakage altogether. It was still pumping grease past that seal! Now, no loss and no water. I only need to service the flex shaft about every 15 runs or so. If you stop the water from coming in and the grease from going out, it is a very stable system.

[Prodrvr]

Oh. I bought .055" wall ss tube. Not from OSE.

[CraigP]

Oh man, does the flex shaft even fit?

[CraigP]

And that was easy to bend you say? I guess I gotta hit the gym!