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JaysHorse

C-145 Power Plant upgrade

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JaysHorse

So as a lot of you know I recently picked up a C-145. I sold the engine with the intentions of giving this tractor a little more power with a Onan  p218g. Well today was the day I started this project. 

 

I mowed the grass one last time with my 518H. It was a sad moment but she knows her parts will be put to good use. 

 

I pulled led the motor today and got it set on the new whip. Tomorrow I am hoping to remove the harness and get that all wire up into the “C”. The 518 has an electric lift that will be available in the classifieds along with all hardware for it in anyone is interested. 

 

Here he is my progress.......

 

 

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JaysHorse

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pullstart

Cool project, just curious what’s wrong with the 518?

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JaysHorse
Posted (edited)
1 hour ago, pullstart said:

Cool project, just curious what’s wrong with the 518?

Nothing. Just really like the C class and onan. That and I really want the hydro and the sunstrand seems to be pretty quiet. 

Edited by JaysHorse
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JaysHorse

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JaysHorse

Coming along nicely. Only one snag and that is the drive belt length. Any ideas? The original and the one off the 518 seem to be about an inch short

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troutbum63

I would think a half inch belt an inch longer, if that is possible. Or move the engine back to make up the difference if possible. That 145 is going to be a power house when your finished. Smaller pulley at the rear, but not sure how that would work out overall. GOOD LUCK

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ebinmaine
55 minutes ago, JaysHorse said:

Coming along nicely. Only one snag and that is the drive belt length. Any ideas? The original and the one off the 518 seem to be about an inch short

I've changed pulleys or engines on 3 tractors so far.

 

I went down to the local auto parts store and bought 3 "close" sizes and returned the ones I didn't need.

 

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JaysHorse

Anyone know the length of the original belt on the 145? 

 

Also anyone know what the trick is to getting the bolt on the under side of the gas tank out. It just spins. 

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troutbum63

I some one has an answer on the bolt that spins, I have one I am trying to get apart with the same problem. First bolt came right out, 2nd bolt being a pain in the butt and no way to get to it.

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953 nut
8 hours ago, troutbum63 said:

half inch belt an inch longer,

Drive belt would be 5/8" wide.

9 hours ago, JaysHorse said:

drive belt length.

Did you use the engine pulley from the C-145? I think I remember you saying the 518 was a manual transmission. The hydro engine pulley is larger.

Both of my hydros use a 5/8" wide 82" long belt, 5L-820 or B-79.

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JaysHorse
38 minutes ago, 953 nut said:

Drive belt would be 5/8" wide.

Did you use the engine pulley from the C-145? I think I remember you saying the 518 was a manual transmission. The hydro engine pulley is larger.

Both of my hydros use a 5/8" wide 82" long belt, 5L-820 or B-79.

The 518 was a hydro. I wasn’t able to get the pulley off the old k321. Almost looks like the pulley o the transmission of the 145 is a bit bigger. Wondering if I could swap pulleys off the hydros? The pulley on the 145 is finned and the one on the 518 has a separate cooling fin. 

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JaysHorse

Wondering if tractor supply will have a belt that will work

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ebinmaine
6 minutes ago, JaysHorse said:

Wondering if tractor supply will have a belt that will work

That'd be a good bet.

Pick up 2 or 3 and keep em clean. Return what you don't need.

 

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JaysHorse

So the original is 84”. Picked up an 85” and 86”. 85” wins. 

 

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troutbum63

So on a hydro the belt goes under the tensioner pulley, I have never had an automatic per say. I have one that's a parts tractor but it never had a drive belt as it never had an engine.

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ebinmaine
2 hours ago, JaysHorse said:

85” wins

Excellent

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JaysHorse

UPDATE......So got the engine in and partially wired up to make it run. THIS IS ONE BADASS MACHINE!!!!! And very fast. Not sure y but it is way faster than it ever was. 

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ebinmaine

Assuming you have the same size engine pulley your speed should not change simply because of gearing. However, you did add a fair amount of torque. That by itself would make the machine both more efficient and more powerful.

 

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JaysHorse

I didn’t use the pulley off the old motor. Not sure if they are same size but I am happy with my decision. Just got to cut in a few gauges and button it up for now. Grass needs mowing. 😂 

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ebinmaine
8 minutes ago, JaysHorse said:

Grass needs mowing.

VERY quickly....:P

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Mikey the Monkey

Let's see some pics Jay! 

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JaysHorse

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JaysHorse

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JaysHorse

Paint next year

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