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Case 444 questions

3.5K views 24 replies 6 participants last post by  Isaac84  
#1 ·
1. I was wondering how a starter generator mounts to a kohler k321 engine. The one I have has one mount that bolts on to the top of the engine and mounts on the front of the starter. It felt really wobbly and I couldn’t get the belt tight so I made another mount. The mount I made helped make it more stable but it’s still a little loose and it’s hard to get the belt to stay tight. Sometimes the starter just spins and doesn’t turn the belt. Anybody know if there’s supposed to be another mount or something. If there is i’d appreciate some pics

here’s the original mount
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Here’s the mount I made
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2. I found out today that the tractor is not getting spark. I used a test light to try to figure out why it’s not. I found that when the key is on the wire going to the points has power. Is that how it’s supposed to be? I don’t now a whole lot about engines with points so I’m a little confused. Anybody have any ideas why it don’t have spark?

Thanks for any help
 
#2 ·
Did you tighten the bolt ( it is usually 1 long one that goes the whole distance between the front and rear of the starter, on the underside) on which the starter pivots?
Did you try cleaning the points?....just a quick swipe through the closed points with a piece of very fine sandpaper ( some people use a dollar bill) ...also make sure the points are gapped properly
 
#3 ·
No I didn’t now there was a bolt on the underside. I figured it was missing something but wasn’t sure what. Do you have a picture you could post? I tried cleaning the points but I just used paper and some parts cleaner spray. Maybe I’ll try some sandpaper. Do you reckon the coil could be bad?
 
#4 ·
From your pics, the starter belt is way too narrow for the starter's pulley. See arrows in pic below. V belts and pulleys have to "pinch" the belt from the sides to get the correct friction to run the belt's load. If they are too low in the pulley's V then that side pressure cannot be there and the belt will slip. Slip happens in the pulley with the smallest purchase area on the belt, in your case the starter's small pulley.

My bet is a wider belt that rides about A 32nd of an inch below the rim of that starter pulley will solve your belt slippage problem.

Good job on the fabricated mount. Long as it is solid, you're golden. Let us know how your project is coming along.

Best of luck.

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#7 ·
From your pics, the starter belt is way too narrow for the starter's pulley. See arrows in pic below. V belts and pulleys have to "pinch" the belt from the sides to get the correct friction to run the belt's load. If they are too low in the pulley's V then that side pressure cannot be there and the belt will slip. Slip happens in the pulley with the smallest purchase area on the belt, in your case the starter's small pulley.

My bet is a wider belt that rides about A 32nd of an inch below the rim of that starter pulley will solve your belt slippage problem.

Good job on the fabricated mount. Long as it is solid, you're golden. Let us know how your project is coming along.

Best of luck.

View attachment 2581701
Before I bought the belt I went on this forum and found a thread about the size of belt and so I bought that size. It’s a 3/8 x 33. I see what you’re saying about it riding too low in the pulley. I would get a wider belt I don’t think it would fit on the pulley on the engine. What do you think? Thanks for the picture I appreciate the help
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#5 ·
I had the problem described by @Alien5044 with a belt ...I got the correct belt from ISaveTractors.com...world of difference I looked, but I do not have a picture of underneath, but it is not much different from how an alternator or a generator is mounted in a car...just reach under and feel the device that allows the starter to pivot...it's just a bracket with a long bolt...that bolt has to be tight...if you look at this video, it shows a starter generator just like yours, so you can see what you are feeling around for...it is a flange of metal with the hole for the pivot bolt, opposite the one you have the bracket attached to in the first picture...AND a similar arrangement at the rear of the generator.....the pivot bolt passes through the 2 flanges at the bottom
 
#10 ·
I really could not figure out the arrangement that you made, until I took quite a few more looks..and I believe that if you connect to that, that it will twist right off...just tighten up the pivot bolt...TIGHT.......call ISavetractors.com and order the belt, or, I have had good luck with other belts at Jacksmallengines.com a bit pricey, but I have always received the proper belt......the bracket you made looks like it is just too thin to work...and unless the pivot bolt is tight, you are not getting the full intended force to hold the starter in place
 
#12 ·
Both pulleys need to be of the same V measurements in order for them to work properly. I suspect this starter is not originally from this engine.

Temporarily, you could try some belt spray but that stuff is more messy than useful. IF it works at least you could get the engine started until you can find the right pulley for the starter.

McMaster-Carr may have the pulley to match that on the engine. Carefully measure the engine pulley diameter, V depth, V width, shaft size, and the keyway size, if it has a keyway. Armed with that info, you can go on line and shop for a new pulley for the starter. Here is a link to their pulley page have a look, bet you can find one with the same width and depth as your engine pulley with the same diameter and shaft size as the one now on the starter. :

pulleys | McMaster-Carr
 
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#16 ·
Both pulleys need to be of the same V measurements in order for them to work properly. I suspect this starter is not originally from this engine.

Temporarily, you could try some belt spray but that stuff is more messy than useful. IF it works at least you could get the engine started until you can find the right pulley for the starter.

McMaster-Carr may have the pulley to match that on the engine. Carefully measure the engine pulley diameter, V depth, V width, shaft size, and the keyway size, if it has a keyway. Armed with that info, you can go on line and shop for a new pulley for the starter. Here is a link to their pulley page have a look, bet you can find one with the same width and depth as your engine pulley with the same diameter and shaft size as the one now on the starter. :

pulleys | McMaster-Carr
Sounds good
 
#19 ·
Ok. Is the oil dipstick on the engine you posted a picture held in place by a O ring? The one I have has a bolt-like thing screwed into it but I found a dipstick like the one in the picture you posted in the toolbox but it isn’t very tight when it slides in the tube thing. Is it supposed to be pretty tight?
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