40 series torque converter on a spiderbox yerfdog

[Mr.Pedroza]

Hey guys I've ran into a big problem in finding a way to mount my 40 series TC on my yerfdog spider box with a 16 hp lifan engine i've just been looking for some advice on ways to mount the TC. In lou of pictures here is a video to get all angles of the engine and swingarm
https://www.youtube.com/watch?v=dnL19p0Ioco

 

[MrC.]

Remove the silver rear bumper mount engine to the existing motor plate the TC is self contained and has a sprocket on it. slide the drive gear over to line up with the sprocket on the TC . Then relocate your brake caliper to the side were the disc is now.
if you can modify the old bumper and reattach.
MrC.

 

[chancer]

Give this a look:
https://www.youtube.com/watch?v=9rtiWiXxAu0

 

[Mr.Pedroza]

I actually don't have a back plate for my torque converter I asked Gopowersports about one and they don't seem to sell it separately ... I understand they make their money that way but anyways I have the drive and driven unit with a 3/4 in jack shaft I'm not sure if I could buy pillow blocks or use a welded solution ... There is another video on my channel of the hydraulic brake installation where you might get a better view ... I can take some pictures or upload another video of the parts I have currently but here's my channel with the other video of the Spiderbox. Just remember the red Spiderbox is called Jett's junk https://m.youtube.com/channel/UCBx7hBUnwH-EQWwL2flzHBw

 

[DeathMachine]

Keep in mind the distance from motor shaft centerine to jackshaft centerline is critical for the TC to work properly

 

[Mr.Pedroza]

Keep in mind the distance from motor shaft centerine to jackshaft centerline is critical for the TC to work properly

Yes I know I've seen the belt charts and I'm still holding out on buying more belts until I know exactly where I'm mounting the driven unit so I can buy the right belt

 

[DeathMachine]

Just a tip- set everything up to use the most readily available belt. Belts are a consumable (wear item) and choosing a belt that you have to wait for the manufacturer to get enough orders to start making them can put a crimp in your day. (I did this building a compressor. The belt I selected was super short to keep the thing compact, and when it did eventually wear out I discovered that the belt was obsolete and no longer in production)

 

[MrC.]

Bmi makes a jackshaft and motor plate combo that will give you a common distance and belt. Mount the driven and sprocket on that may be a 10t sprocket then line up the big drive sprocket.
MrC

---------- Post added at 10:14 PM ---------- Previous post was at 10:11 PM ----------

http://www.bmikarts.com/Clutch-Mount-with-Jackshaft_p_1129.html

 

[Mr.Pedroza]

Bmi makes a jackshaft and motor plate combo that will give you a common distance and belt. Mount the driven and sprocket on that may be a 10t sprocket then line up the big drive sprocket.
MrC

---------- Post added at 10:14 PM ---------- Previous post was at 10:11 PM ----------

http://www.bmikarts.com/Clutch-Mount-with-Jackshaft_p_1129.html

That actually won't work that plate is used for the yerfdog models with 5 hp Tecumseh engine or 212cc predator I have a equivalent of a 420cc predator which has a different bolt pattern that the smaller engines which fit that plate

 

[MrC.]

Well in projects like these universal fit means you have to make it fit universally.
You are correct about the holes.

MrC

 

[Poboy kartman]

Did you even view the video in post#3?

 

[Mr.Pedroza]

Did you even view the video in post#3?

Yes I did but I don't have the money for the full torque converter set up from go power sports

 

[Mr.Pedroza]

I've even subscribed to go powerssports on YouTube

 

[Mr.Pedroza]

So I'm guessing there's no other advice other than to buy a new system ???

 

[MrC.]

Well then if money is the issue then its time to fabricate a plate like the one I suggested. find some steel plate drill and slot it and a tube that will hold some bearings and build a jackshaft.weld it all together then Buy a few sprockets and chain then hook it all up.

MrC.

 

[Jfive]

That plate they made for a 40 is pretty simple to make. I'd guess it uses the same bolt pattern engine wise as the tv30 kits. I'd drill all the holes mount it with the engine mark center line for the jackshaft. Then tack a tube with the two race car gussets. That's all there's is. Maybe 40 to 50 in materials less than 100.00 with jackshaft and bearings. Looks like 5/16" plate to me.

 

[TigerKart]

How's the Spiderbox coming? I picked up a Spiderbox myself (4 free) and want to repower it with a Predator 420

 

[aham2003]

You need this if you dont have a backplate.

http://www.bmikarts.com/Motor-Mount-Plate-with-Jackshaft-and-Bearings_p_1051.html

 

[Mr. Spindle]

Need to do some cutting from what I can see... and of course, when there's cutting there's welding. I'm not exactly sure what u should do


This is taking too long

 

[TigerKart]

Take a look at how I got the Predator 420 to fit in the Yerf Dog 3206 Spiderbox.

This is my build:
http://www.buggymasters.com/forum/showthread.php?t=5993

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