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Discussion in 'Mud Motors' started by Flutterin'_Wings, Oct 8, 2008.
If anybody is interested, I have a tall transom outdrive from a hyperdrive I'd sell or trade.
Which horsepower mini motors?
Can you speak to the bearing set up at the top pulley (red box) and the bottom pulley(red arrow) where the shaft leaves the belt housing?
Also, how did you set the tension on your belt?
How many CC's is the VW engine? I have often thought about building a VW powered mud motor. If I could get a longtail to run 27mph loaded without tearing a rotator cuff in the process I'd be in heaven. Once you stop in shallow water over hard sand bottom with a short tail, you'll wish you could hit a button to automatically extend the shaft to the length of the long tail. Been there and watched the long tail power over to us so we could offload the passengers to his boat. We powered away while my buddy spent the next 30 minutes wearing his prop down trying to cut a trench long enough for him to get a good running start to get on plane.
The part on the upper pulley is the tapered pulley hub not a bearing.
To tighten the belt the housing is slotted and there is a bolt at the bottom of the housing to adjust the belt tension.
This is a sketch of the lower bearing housing.
I think it is a 1600 cc pushing about 75 hp
Looking at some of the motors built, what other alternatives have you all been using for bearings opposed to beavertails external housing?
You are going to need a bunch more HP.
A 36HP on any frame will not get you faster than 25+/-. Unless you change the carb/muffler ETC.
You need about a 50HP to push a heavy boat that fast.
Shallow = when the skeg/prop on yer rig starts hittin bottom.
In less than 6" of water my longtail mini will stomp a mud hole in a short tail mini and walk it dry!