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Miss Bud - Help - Stripped Countersunk Drive Dog Screw

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Miss Bud - Help - Stripped Countersunk Drive Dog Screw

Old 10-17-2005, 12:55 PM
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Default Miss Bud - Help - Stripped Countersunk Drive Dog Screw

Hello Everyone,

I need help. I stripped the counter sunk screw head in the drive dog, and can not figure out how to get it out.

I have about 2 hours running time on the Miss Bud Nitro. Went to remove the set screw - the one inside the engine compartment - I have the original version of the Miss Bud 1/12 scale.

I stripped the allen head female end on the screw. Need to get that loose to be able to grease the drive shaft.

I have tried to super glue the allen wrench to the inside of the stripped screw head - did not work.

I tried a screw extractor that was 2 mm that I bought from Home Depot - did not work.

I tried to epoxy glue the allen wrenct to the inside of the stripped screw head - did not work.

I have been looking for the last two months for someone that sells a reverse direction 1.5 mm drill bit, and can not find one.

Has this happened to any of you? If so, how did you get it out?

Thanks,
Bill
Old 10-17-2005, 02:06 PM
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Default RE: Miss Bud - Help - Stripped Countersunk Drive Dog Screw

Sorry to hear this happened to you. I wrote about this in my Miss.Bud post a few months ago.

http://www.rcuniverse.com/forum/fb.asp?m=2847700

Hope this helps.

Old 10-17-2005, 02:29 PM
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Default RE: Miss Bud - Help - Stripped Countersunk Drive Dog Screw

Thanks boataddict,

A little more advice would be appreciated.

How do you release the engine from the drive dog to get the engine out?

Do you remove the gas tank first? If so, how do you get it out if the engine is still in?

There is not much of the set screw left. I rounded out the head pretty bad.

Thanks,
Bill

Old 10-17-2005, 05:40 PM
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Default RE: Miss Bud - Help - Stripped Countersunk Drive Dog Screw

All the information is listed in that link I provided.

http://www.rcuniverse.com/forum/fb.asp?m=2847700
Old 10-18-2005, 04:32 PM
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Default RE: Miss Bud - Help - Stripped Countersunk Drive Dog Screw

boataddict,

Your description is quite helpful. But I have one question that is not covered in the description. I have never removed the engine from the boat. When I remove the bolts that connect the engine to the hull, and go to pull the engine out of the compartment, how do I disconnect the back side of the engine from the shaft and the drive dog? Is the drive shaft connected to the engine, or is there a flat end on the drive shaft, and you can pull the engine out without it tugging on the drive shaft and drive dog?
Old 10-20-2005, 04:09 PM
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Default RE: Miss Bud - Help - Stripped Countersunk Drive Dog Screw

LSU Tiger.

These steps should make it clearer.


1.) Remove Silicone exhaust coupler.
2.) Remove Prop and Prop Drive Dog
3.) Disconnect all fuel and water lines from motor.
4.) Remove the (4) 3/32” Hex Screws that mount the motor to the hull.

The motor is attached to the shaft using a Drive Dog and joint union. It is not permanently attached and the joint easily slides off the drive dog and pin once the 4 motor screws have been removed.

Note: There is a very small pin at the end of the Drive Dog that slides into the joint on the motor. See image here

[link=http://www.horizonhobby.com/Shop/ByCategory/Product/Default.aspx?ProdID=PRB2216]Drive Dog and Joint Image: [/link]

5.) Gently maneuver the motor and throttle arm off the throttle push rod.

The motor should be out at this point

6.) Remove fuel tank, (be careful not to break the rubber band).
7.) Slide the shaft out from the inside.

After you receive the new shaft from Horizon go to the LHS and purchase extra screws for the drive dog and prop then replace those screws when they get worn.

Use a very small amount of Locklite Blue (and not Red) to secure the screws from vibration.


Hope this helps
Old 10-20-2005, 04:14 PM
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Default RE: Miss Bud - Help - Stripped Countersunk Drive Dog Screw

boataddict,

Thanks, the clarification helps alot.

One other question, are the bolts that attach the engine to the boat secured with red loctite?
Old 10-20-2005, 04:15 PM
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Default RE: Miss Bud - Help - Stripped Countersunk Drive Dog Screw

Nope, be certain to use tools with a good handle.

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