DIY Surface Drive Mud Motor

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DIY Surface Drive Mud Motor

Рет қаралды 34,361

Күн бұрын

This is a surface drive mud motor made from a 13hp (ish) Princess Auto engine. I've never had it in actually mud but I assume it would cause the belts to slip if it was thick mud. I mainly made this build for shallow water, dead heads, rocks, and weeds where the bass like to hide. These motor designs are so maintenance free and tough which why I choose to build one.

Пікірлер: 30

@johnzoulek9383 3 жыл бұрын

I truly appreciate you guys with these skills!! Awesome job.

@dooryardfabrication3973 3 жыл бұрын

Thank you man! I'm currently making another one with a bigger motor, keep checking in!

@robertweeks2039 3 жыл бұрын

Nice job. I am building a sled with a Princess Auto engine that I hopped up. Next project is a surface drive mud motor that will be using a Suzuki Geo Metro 3 cylinder engine.

@dooryardfabrication3973 3 жыл бұрын

That's awesome, I'm currently building a new one with a 20hp Kohler twin, but that geo metro would fly, I'd like to see that in action.

@Nasatchannel 3 жыл бұрын

❤️

@huxmetalworks7371 11 ай бұрын

Great job would like to build one for a 14foot jon boat can you give dimensions so we could build one you did a great job very clean would

@stevenbenavente1229 Жыл бұрын

Good job

@MS-ik3xg 3 жыл бұрын

Dude awesome work. how long would you say it took you to finish this?

@dooryardfabrication3973 3 жыл бұрын

thanks bud, around a total of 50 hours

@SouthFloridaFishingChannel 3 жыл бұрын

That's awesome man. How do you think that motor would fare in saltwater?

@dooryardfabrication3973 3 жыл бұрын

Thank you! I'm not too sure about salt water, I'm sure there would be quicker wear on the seals, but the prop is stainless and the rest is aluminum so it might hold up well

@Bonnie-Clyde90 Жыл бұрын

How long is the bottom shaft??

@ryanduncan9462 2 жыл бұрын

How did you keep the shaft secure in the lower unit with no axial play? I'm trying to figure that part out before I try my hand at building one. Can't find anything on the internet that is helpful!

@dooryardfabrication3973 2 жыл бұрын

I’m using the Teflon flanged bushing at the end with the prop as a thrust bearing, used it for 2 summers now seems to work good.

@gavinartis7493 2 жыл бұрын

Where did you get those pulley’s?

@andyherring8416 3 жыл бұрын

What material did you use to seal the shaft where it comes thru the bottom from the drive sprocket and has water entered your oil at all I plan on building the same thing any suggestions thanks awesome build, Andy

@dooryardfabrication3973 3 жыл бұрын

HI Andy, for the bottom end thurst bearing material I used a Teflon flanged plain bearing that I machined. this keeps large dirty particles out and acts as a thrust bearing for the propeller. After the teflon bearing in the same housing a have 2 seals then a sealed bearing and then another seal in that order. just to help prevent water getting in and I packed each layer in between with a little grease. The seals I got from rockauto (part no. 471643) these will press fit in a 1.625 bore. Also the shaft is a 3/4" chrome hardened shaft, only the outside is hardened from factory so it withstands the cutting action that the seals can do. I have not checked yet to see if water has got inside but I will eventually. Hope this helps ! I'm currently building a new one with a twin engine, timing belts and electric clutch so keep an eye out for that, I will explain more in those videos. Thanks and good luck!

@dooryardfabrication3973 3 жыл бұрын

Also in my new mud motor I'm building, I'm changing the seal type so they have a rubber/nitrile casing oppose to the rockauto ones having a metal casing. This should help keep water out better. These seals I got from Daemar inc. They deal with bigger orders and I had to make a minimum, $50 order but they were happy to help. The part number for those seals are S07516231AS.

@gavincosper5637 Жыл бұрын

Great build! Where did you purchase the 3/4” hardened shaft?

@gavincosper5637 Жыл бұрын

Also what belt and pulley did you use for this build?

@dooryardfabrication3973 Жыл бұрын

@@gavincosper5637 I got some chrome induction hardened shaft from a local cylinder repair shop. As for belts and pulleys I bought all that at princess auto , I kept it 1:1 and went with double sheaved pulleys with 2 Vbelts

@robertweeks2039 3 жыл бұрын

Looks like you are in Ontario?

@dooryardfabrication3973 3 жыл бұрын

New Brunswick

@gsxrshark 3 жыл бұрын

What Gear ratio and prop?

@dooryardfabrication3973 3 жыл бұрын

Just 1:1 ratio with 8x5 prop from hillmarine. The motor also has governor removed.

@manny5996 3 жыл бұрын

How much for a setup.like this

@dooryardfabrication3973 3 жыл бұрын

The boat is an old 14'vhull I bought for 400$. But the mud motor cost me 1000$ to build.

@manny5996 3 жыл бұрын

@@dooryardfabrication3973 very nice build 👌

@WVA541 3 жыл бұрын

Awesome build man! I’m thinking about cutting up my swamp runner long tail kit and building a surface drive! I’ll keep an eye out for your new build. If you have Instagram give me a follow @wva541