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Slipping Prop

Old 08-07-2003, 08:48 PM
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Shockwave55
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Default Slipping Prop

I just bought a new Proboat Shockwave RTR. When I run it, I will give it gas and it just revs up but doesn' t go anywhere. I noticed that the set screw in the drive shaft right behind the prop keeps coming off of the "flat spot" and the drive shaft just spins on the inside not allowing the prop to grab. I have tried lock tite but this has not helped. Has anyone had this problem before and if so, how did you fix it?
An information is deeply appreciated.

Shockwave55-
Old 08-07-2003, 09:32 PM
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Mr Cajun Gator
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Default Slipping Prop

2 ways to fix this.... file a lager flat surface on the shaft or use a drill with a bit the same size as the set screw, drill into the shaft just enough for the set screw to lock onto the shaft.
One more thing to check for, at the end of the set screw, there should be a sharp edge or small rigges, if either of these are wore off, the set screw will not bit, and the vibaration will make it back out.
Loc tite keep using it, the blue works better on the small screws. The red works too good.
Old 08-07-2003, 11:14 PM
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Ken Hildreth
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Default Slipping Prop

the first answer was a good one, I prefer the drill method but if you are not able to do it, flining it flat will work, Dont get carried away, this can be a good breaking point on a shaft. I still prefer red on the shaft. I dont want to reuse a drive dog anyway. Ken
Old 08-08-2003, 01:42 PM
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Shockwave55
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Default Slipping Prop

Great suggestions everyone! I REALLY appreciate the assistance.

-Shockwave55
Old 08-08-2003, 10:38 PM
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Cat500
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Default Slipping Prop

How is the Shockwave out of the box? Does it run pretty good? What engine does it come with?

I've downloaded a couple of 5sec videos and it looks fast.
Old 08-09-2003, 02:06 PM
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Shockwave55
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Out of the box the Shockwave is everything Proboat says it is! Fast, amazing handling, Great looks! I am very satisfied with the boat. However, the instructions that come with it could be better and if your new to the hobby like me, that can mean alot!

-Shockwave55
Old 08-10-2003, 12:27 AM
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Ron Olson
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Default Slipping Prop

Here's an easy fix that I found for the slippage problem. If you have a Dremel, grab 4 of the cheap cut-off wheels and stack them on a mandrel. They make a nice, fast cut into the shaft for a flat spot. It's a lot easier than a file to do.
Old 08-20-2003, 12:18 AM
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Safe_Cracker
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Default Hmmmmmm..

Just remember, flat must go with flat. If you drill into the shaft for the set screw then it is ok for the bottom of the set screw to be pointed but if you file a flat spot then so should you the bottom of the set screw. A set screw with a pointed end will not seat against a flat filed spot and will eventually loosen up due to lack of contact. GoodLuck..
Old 08-20-2003, 09:33 AM
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Doubledog
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Default Slipping Prop

<sigh>

Interesting. Maybe I'll try a few of those techniques.

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