Drive shaft setup

[MR2NR]

Well it's me again... lol I did not have the drive strut, flex shaft, or the bushing included with the boat. How does it go together? Does the Bushing go inside the strut first? Does the stuffing tube need to be glued to the tube as it it able to slide out right now....my first flex

Thanks.

[lenny]

Bushing go's in the strut at the drive dog side,
And the tube go's in the bullet shaped side.
You can put a piece of shrink wrap on the strut to tube for water tightness and some support.

[MR2NR]

Is this right? 2012-09-29_16-09-05_640.jpg

[lenny]

Yes,
But what did you do about the other end where the stuffing tube go's in the strut ?
Did put any shrink wrap on it ?

[lenny]

Th bullet nut is pretty,
But you may loos it and your prop.
Most do not use them because of that reason.

[MR2NR]

Should the teflon stick out the back? I just put the metal shaft tube in the strut.

BTW should the bushing rotate on the shaft or rotate with the shaft mines pretty tight on the shaft.

Thanks for the heads up on the bullet nut. That's my show nut now lol. Ive got the stock one still Ill use in the water. This is my first 20$ prop and I'm not going to chance it.

[lenny]

In this picture is the flex all the way in the coupler and mounted to the motor at that time of the picture ?

Is this right? 2012-09-29_16-09-05_640.jpg

[MR2NR]

BTW if you leave some room on the flex shaft from the prop dog to the strut doesn't that mean that most of the thrust created by the prop is transfered to the motor bearings? Would think that the bushing should do most of the work?

[MR2NR]

No lol. That's a bit of a wobble wouldn't you think lol.

[dana]

WTf is going on here?! I'm lost. Motor bearing can take the thrust btw

[lenny]

Where did you buy the prop and is it sharped & balanced and what size is it ?
If so, Who did the S&B to it ?
Ok that good on the picture info.
And yes, Leave a 3/16" gap.
The strut just hold flex shaft, And the flex shaft should flex from the torque to help the motor bearings.
The bushing should fit tight in the strut and the shaft should spin freely in the bushing.

[lenny]

Hey Dana
Your it.

[MR2NR]

Its the Grimm 40x57 bare prop. I need to get it S+B I have a friend that will do it but lives an hour away so it will be a week or two when I get time.

My bushing is loose in the strut. I guess Ill pull the stuffing tube out and replace it with the new one.

Ill get another pic of the strut. Give me a sec....



......sorry for leaving you out dana

[MR2NR]

2012-09-29_19-42-46_508.jpg
2012-09-29_19-43-01_487.jpg

This is fully engaged in the coupler.

[lenny]

Ok,
Is their a slot in the flex shaft for the prop dog ?
If so move it back to the end to give more gap at the strut and dog.
Oh, Do not run the boat till the prop S & B or you may smoke something.
On the Cg I am not sure, On your hull,
My Hydro like the cell at end of sponsones.
But hear is some very good info on your boat,
Do what they say and you should be good.https://forums.offshoreelectrics.com/...get-on-a-plane!!!

[MR2NR]

Thanks Lenny! So I'm at a standstill until I get the prop done. I have priced some people to do the job but know a guy that can do it that is close by. So I have been working on floatation. I have took a swim tube and cut it into pieces small enough to get in the sponsoons through the battery hole. Used about half the swim tube lol. Also glued a quarter cylinder in the top cover and it sits on the motor a little. With 15 min run times and the upgraded cooling system this shouldn't be a problem but will monitor very closely. I couldn't get any urethane foam under 45$ shipped so the 1$ swim tube wins lol.

Was talking to a friend and he brought up self inflating Co2 units out of those life jackets you buy from Walmart at 40$ now. Does anybody do this? Would put it in the cover with a tether :). A broke cover would be better than a lost boat IMO :).