Bosch mag impulse (pics)

fixerupper

Well-known Member
The impulse sometimes isn't tripping or sometimes not at all on a Bosch mag on a Regular we're working on. I need a little education on how the flyweights are supposed to look on the end that catches the ramp and how the ramp is supposed to look on a worn mag. I don't know if this is even the mag the tractor is supposed to have on it.

First pic is the end of one of the weights. It's supposed to catch on the ramp. Looks too rounded to me, but? Second is inside the block. I cleaned up the weights so they slide easily and they do slide down into the groove but when they come to the ramp they pop out easily without catching and then popping out. Third is an IH mag I had on hand. Is this the proper mag for this tractor? Fourth is the mag I'm working onLots of questions. Thanks, Jim LOL
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Maybe I should verify the first pic. That's the end of the weight that is supposed to catch the ramp and hold till it releases. Jim
 
in pic two you can see where it has worn the 'catch' on the outside housing down and shaped it to a point. how you would clean that up to regain more of an 80 dgree angle im not really sure. i would say that is where your problem lies.

pic thre is the correct mag that cam on that tractor, IHC E-4A
 
Maybe I should see if I can get the IH mag working. I have two IH's but they're pretty rusty. That makes it more challenging and interesting. The Bosch has spark if I spin it fast enough so I'm going to get it working too. Good project for a warm shop on a cold winter day. Jim
 

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