Run away props....

[jasoncsc]

Guys,

Yesterday while I was having so much fun on my boat with a newly balanced and modified prop, all of a sudden the flex shaft broke....

That shaft has only been ran less than 20 tanks, and always cleaned and greese after a day of running. That prop I lost was a result that took me about 2 weeks of work balancing, sharping and trying different cuts and bents on 4 different props to come out with the best solution so far. This is my first try on modifying props and I was nearly in tears when I pick up the boat and realized the prop was gone.... :'(

Want to pick you guru's brains as to how to prevent props from running away when the flex shaft break.... I thought of cutting an opening at the strut and install a collar so that when the flex shaft break the solid part of the shaft would still be there....i know this might be a stupid idea, but any of you guys have better ideas?

Regards,

Jason

 

[ScottVanSlooten]

I would start by greasing your cable more . We grease after each tank of fuel . Your idea would put more drag in water as a coller would be bigger then stuffing tube. You could go to a square drive set-up as that uses set screws to hold it together that the strut. Scott

 

[lohring-miller]

There is one more step after cleaning. Inspect the shaft for any broken wires. I remove the shaft then clean and grease immediately after each days running. My shafts stopped breaking when I realized how quickly rust forms on the shaft.

Lohring Miller

 

[Dale]

I bet we all lost a prop that way , i lube my drive cable after every run,plus i shoot some lube on the bearing under the starter cone,this will help your problem.just remember that won't be your last prop. :'( Your bound to hit something in the water like a turtle.My buddie just blew his transum almost all the way off , he hit something ??? maybe a big fish.

 

[davo]

on my boat ive got a little bit of , dont know what it is but its like a bottle cap but its extended higher and its got a tapered bottom with a length of fuel tubing comin off the bottum onte the tip of the shaft. put thick oil into it and it slowly goes through into the shaft while its runnin

Davo 8)

 

[nitrotoys]

I think your talking about a IB Motor?

well I use 3/16 collar and 1/4 inch collars on all my shafts, as if the cable breaks, or comes loose, i will not loose a prop.

Remember it takes a good prop for a boat to do 200.

dont want to loose it. ;D ;D