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53 Ridemaster -2


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#1 jdcrawler OFFLINE  

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Posted January 09, 2012 - 05:18 PM

The mount for the support bearing for the transmission drive shaft is cut off the frame.

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The base for the driveshaft on the front of the engine sticks out too far and I can't just turn it down because it is hallow inside,
The drive shaft that was on the front of the old Wisconsin engine does not fit on the Kohler engine.
So I cut the base of the Koler drive shaft and cut the shaft off the Wisconsin driveshaft.

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The Kohler driveshaft base is chucked up in the lathe.
The outside diameter of the base was out of round so I turned it down first.
Then I turned the inside until it cleaned up.

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Then I chucked up the Wisconsin driveshaft and turned down the base until it fit into the Kohler base.

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Here's what the new driveshaft looks like after it was welded together and primed.

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With it mounted on the engine, you can see that the base doesn't stick out as far as the Kohler driveshaft did.

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The drive pulley is mounted on the engine and the the pulley for the transmission is lined up.
The transmission shaft isn't long enough for the support bearing to go back on so I'm going to have to lengthen it.

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The easiest way to lengthen the transmission shaft was to cut it in half and make a sleeve to fit on it.
Here is the finished shaft.

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The transmission shaft is re-assembled with the support bearing and the bearing mounting bracket is welded to the frame.

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#2 Amigatec OFFLINE  

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Posted January 09, 2012 - 05:54 PM

How do you tighten the belt?
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#3 jdcrawler OFFLINE  

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Posted January 09, 2012 - 07:16 PM

How do you tighten the belt?

I haven't gotten that far yet.
This is what the belt tensioner looked like with the Wisconsin engine.
It's a pulley on a lever arm and the tension is supplied by a spring.

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#4 Amigatec OFFLINE  

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Posted January 09, 2012 - 07:21 PM

Ok I had missed that the first time, I thought you had some fancy way to tighten it.
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#5 wvbuzzmaster OFFLINE  

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Posted January 09, 2012 - 08:05 PM

Great work as usual Ray. Hope you get the result you are looking for.
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#6 Michiganmobileman OFFLINE  

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Posted January 09, 2012 - 09:19 PM

Looks like you are well on your way again Ray:thumbs:, with your loyal followers awaiting every new post:bounce:. Was the Wisconsin engine dead and if so why a Kohler replacement? Just curious.
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#7 jdcrawler OFFLINE  

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Posted January 10, 2012 - 08:30 AM

Was the Wisconsin engine dead and if so why a Kohler replacement? Just curious.

When I built this up I used a Wisconsin BKN engine that was rated at 7 horsepower.
I figured that would be a big enough engine as my 48 Ridemaster only has 4 HP and it has plenty of power.
Well, it didn't work out ..........

This cart has a hydrostatic transmission on it and it really sucks the horsepower up.
Also, changing the gearing so the cart would move a little faster didn't help any either.
Between these two items, the BKN just didn't have enough umph.
The BKN engine ended up as part of the trading I did for the Shaw tractor and I went looking for a 12 or 14 HP Kolher engine.

Deciding on what engine to get for this swap was a little bit of a challenge.
There were five main things to consider:

1- I felt that it needed to be a 12 or 14 HP to have enough power to drive the hydro transmission and move the cart with two people riding on it.

2- The engine had to be close to the same size as the Wisconsin engine was so I wouldn't have to completely rework the front of the Ridemaster.
Luckily, the old Wisconsin engines were big engines for what little horsepower they had.

3- The engine had to be able to have a drive shaft on the front to run power down to the transmission.
This ruled out a lot of engines right away.

4- I wanted the design of the engine to look like the old Wisconsin engines.

5- I would the carb and exhaust to be on the same side of the engine as it was on the Wisconsin engine.


This Kohler engine has met all the requirements that I was looking for plus a bonus.
Initially, I thought the base of the engine would be sticking out about a inch on either side of the mounting frame.
I didn't know that Kohler made two different widths of oil pans and it was just a lucky pick that I ended up with the smaller pan.
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#8 jdcrawler OFFLINE  

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Posted January 10, 2012 - 10:52 AM

This is the belt tension pulley setup that was on the Ridemaster before.

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Initially, the mounting bracket was welded right on the top front corner of the frame that the engine was mounted on.
The Kohler flywheel housing is a larger diameter than the Wisconsin housing and it sets out forward farther than the Wisconsin did.
So I welded a piece of metal onto the front of the frame for the tensioner bracket to be mounted on.
The piece of metal is mounted at an angle so the bracket will tuck up against the flywheel housing.
I had to grind some off the corner of the angle iron frame for clearance for the nut and washer on the pivot shaft.

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Here is the bracket welded in place.

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The pulley is bolted to the bracket and the tension spring is fastened in place.

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#9 Chuck_050382 OFFLINE  

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Posted January 10, 2012 - 11:04 AM

Looks ready for a test drive. Great work as usual Ray.
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#10 tiretrx OFFLINE  

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Posted January 10, 2012 - 12:42 PM

Sweeet, nice work, Ray!
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#11 tractorman604 OFFLINE  

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Posted January 10, 2012 - 12:56 PM

Ray, you need your own TV show......The jdcrawler GT Restoration. Make sure it gets aired in Canada please! :worshippy1::usa::canada:
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#12 caseguy OFFLINE  

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Posted January 10, 2012 - 01:12 PM

Looking really good Ray as always! Your "can-do" outlook is inspiring! I have got to get me one of those lathe things!
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#13 KennyP OFFLINE  

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Posted January 10, 2012 - 02:18 PM

I just love how you adapt to challenges. You make it look so easy. Great job on the tensioner!
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