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Author Topic: Installing a gear reduction starter motor in a Belarus 572  (Read 578 times)

damengineer

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Re: Installing a gear reduction starter motor in a Belarus 572
« Reply #7 on: February 28, 2020, 12:07:28 PM »
My old 822 starter worked one day the next it wouyld not do anything.  I could only hear the 12/24 switch engage.  I finally made a remote starter switch and connected it while holding a volt meter on the starter terminals.   I had 24v to the starter and then 214v to the solenoid but it was not working.  One of the 3 screws that hold the solenoid on to the starter had fallen out and the solenoid was slightly off center and binding the plunger inside.  I had checked this by crossing the big starter terminals while engaging the switch. 

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imperial1960

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Re: Installing a gear reduction starter motor in a Belarus 572
« Reply #6 on: February 14, 2020, 01:55:00 PM »
Update on my OEM starter (bad ground) also I used a flexible 3/8 wobbly 12 point 17mm using a 24inch long extension easygoing.
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arie515

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Re: Installing a gear reduction starter motor in a Belarus 572
« Reply #5 on: January 17, 2020, 02:11:07 PM »
Do you know where to buy a better quality starter? Also my old starter has a long nose cone starter gear your gear reduction is flat is this China starter a direct fit?
www.mtzequipment.com is the sole factory authorized tractors and parts distributor for USA and Canada. Also check www.mtzbelarusparts.com
Call 1-855-246-4689 x222 for all original parts, or order online.

rockyroad

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Re: Installing a gear reduction starter motor in a Belarus 572
« Reply #4 on: January 15, 2020, 12:50:15 AM »
Also if you have a Belarus with a D242 engine you need a starter which is 10 tooth CW (that means clockwise I think).
  • Belarus BX70 a.k.a. 572

rockyroad

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Re: Installing a gear reduction starter motor in a Belarus 572
« Reply #3 on: January 14, 2020, 12:17:39 PM »
Thanks for posting pictures! Do you know where to buy a better quality starter? Also my old starter has a long nose cone starter gear your gear reduction is flat is this China starter a direct fit?
Hi,
Yes the chinese starter is a direct fit.
I have only ever found the original starter and the chinese made gear reduction starter for sale. If you have a 12 volt starter try searching online for 'belarus starter motor 24073708'. There are lots of sites selling them.

  • Belarus BX70 a.k.a. 572

imperial1960

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Re: Installing a gear reduction starter motor in a Belarus 572
« Reply #2 on: January 14, 2020, 05:59:38 AM »
Thanks for posting pictures! Do you know where to buy a better quality starter? Also my old starter has a long nose cone starter gear your gear reduction is flat is this China starter a direct fit?
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rockyroad

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Installing a gear reduction starter motor in a Belarus 572
« Reply #1 on: January 10, 2020, 05:32:49 PM »
The gear reduction starter motors make for much easier starting of my Belarus 572 tractor. They work with smaller batteries e.g. 660 CCA and the motors turn over faster making starting much quicker and easier. Both of my Belarus 572 tractors are 12 volt starting. The standard starter motor requires a huge 1200 CCA cranking amp battery and even then they crank over very slowly. If the temperature is below 5 deg C (about 40 F) the tractor is very reluctant to start. Since installing gear reduction starters on 2 tractors I havenít had any starting concerns.
Installing the gear reduction starter motors is a bit tricky because the bottom bolt is very difficult to install. I donít recommend running the starter without the bottom bolt installed as it will place considerable stress on the aluminium starter housing. It could easily crack.
I could not find any standard spanner or socket which could get at the bottom bolt because the starter housing is in the way. I made a tool out of a socket with a piece of steel rod welded and bent to shape.
I used a 3/8 drive 17mm socket. It must be a 16 point socket. An 8 point socket will not work because you cannot turn the bolt enough to get the next Ďbiteí at the bolt. See the photos of the tool I made. Take note of the angle the steel rod is welded on, the bend in the rod, and the bit ground out of the back of the socket.
I bought the gear reduction starters from Rare Electrical in the US, but they are made in China. As others have commented on other posts, they can have some quality issues. The first one I bought the circlip fell of the starter solenoid shaft twice. I arc welded the shaft to the solenoid lump of iron and havenít had any problems since.
  • Belarus BX70 a.k.a. 572