GN-220 7.8hp rebuilding old go kart

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redsox985

redsox985

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No you would either need a lathe and full engine breakdown our get a coupon and get the 6.5 for 100.
 
redsox985

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This will get emails with the coupons sent to you if you don't already get them in a weekly paper. I know I get a flyer every Sunday.
 
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airsoft_warrior

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I guess it doesnt really matter now. My brother after we bought the 6.5 hp engine we got it home and were swapping out the tires and rims for another set we had because the ones on the cart were old and dry rotted and had a hole in them. Any way, one came off with a few shots of WD-40 but the other was stuck. So my brother decided to hit the axel with a hammer to see if it would dislodge the wheel but all it did was mess up the threads so it doesnt matter whether we get the wheel off or not we cant thread the nut back on. Good bye go cart rebuild.
 
r97

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aww, c'mon, don't give up that easily, first get that tire off! then buy another nut that fits your axle threads (not a jam nut or lock not, just a normal one, also if you can get grade 8), cut it in half with a hack saw NOT an abrasive type cutting tool that will ruin the threads. put both the halves of the nut over the axle threads, behind the damaged portion, hold them together then slide the closed end of a wrench over the axle and put that over the bolts, now push the wrench away or towards the kart just enough to allow you to let go of the nut halves, now pull the wrench so that one of the halves is pressing on the axle threads a bit (not to hard), throw a bit of oil on the axle and start turning the nut over the damaged thread moving forward a bit then backing up, and repeat. depending on how badly the threads were damaged you may have to cut off a portion. i have done this and it works well for me. got the idea from some tool that does the same thing basically the same way, just wayyyy more expensive. i suppose if you wan't you can cut a die in half, but a bolt should work fine. now i know thats a lot to read, but its extremely simple. good luck.


p.s. you also don't have to worry about cross-threading!
 
Doc Sprocket

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R97, that's a very interesting way to chase threads- I'll have to try that sometime. I know I don't have any dies large enough for something like that. I'm just trying to figure out how bloody difficult it would be to saw a grade 8 bolt in half by hand!

Airsoft, your brother sounds a lot like a friend of mine, bull in a china shop. He once hammered a ball joint into oblivion like that, on a Sunday. No auto parts stores open, had to drive to work monday morning. It took me quite sometime to restore the balljoint stud with a dremel, but I did it. I ground out the mushrooming at the end of the stud, then repaired the threads with one of those teeny cut-off wheels. Drove to work the next morning. In fact, drove it for the next two years. The moral? You ain't dead yet! Keep at it. When it's all done, youll be glad you did!

PS Send me the Briggs- I've been trying to find one around here. Tough to come by.
 
redsox985

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That's a great idea! Maybe even clamp it on the axle and weld the seams. It would be though to find a die that large but a nut could be a few dollars. I got my castle axle nuts for less than $4 each. Also, when your dealing with as much metal as there is in a nut of that size, especially to be cut in half, I don't think to grade would be that necessary.
 
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toystory_4wd said:
R97, that's a very interesting way to chase threads- I'll have to try that sometime. I know I don't have any dies large enough for something like that. I'm just trying to figure out how bloody difficult it would be to saw a grade 8 bolt in half by hand!

Airsoft, your brother sounds a lot like a friend of mine, bull in a china shop. He once hammered a ball joint into oblivion like that, on a Sunday. No auto parts stores open, had to drive to work monday morning. It took me quite sometime to restore the balljoint stud with a dremel, but I did it. I ground out the mushrooming at the end of the stud, then repaired the threads with one of those teeny cut-off wheels. Drove to work the next morning. In fact, drove it for the next two years. The moral? You ain't dead yet! Keep at it. When it's all done, youll be glad you did!

PS Send me the Briggs- I've been trying to find one around here. Tough to come by.
Click to expand...
I will sell it if you want. But i need to get the clutch off first. I want that first.
 
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r97 said:
aww, c'mon, don't give up that easily, first get that tire off! then buy another nut that fits your axle threads (not a jam nut or lock not, just a normal one, also if you can get grade 8), cut it in half with a hack saw NOT an abrasive type cutting tool that will ruin the threads. put both the halves of the nut over the axle threads, behind the damaged portion, hold them together then slide the closed end of a wrench over the axle and put that over the bolts, now push the wrench away or towards the kart just enough to allow you to let go of the nut halves, now pull the wrench so that one of the halves is pressing on the axle threads a bit (not to hard), throw a bit of oil on the axle and start turning the nut over the damaged thread moving forward a bit then backing up, and repeat. depending on how badly the threads were damaged you may have to cut off a portion. i have done this and it works well for me. got the idea from some tool that does the same thing basically the same way, just wayyyy more expensive. i suppose if you wan't you can cut a die in half, but a bolt should work fine. now i know thats a lot to read, but its extremely simple. good luck.


p.s. you also don't have to worry about cross-threading!
Click to expand...

That sounds like a good idea. My dad told me to get a die but said it was going to be expensive. My brother and I had found a chopper bike for about $50 bucks and had just about all the pieces to build that into a motor bike. I know he really wanted to do that. So we may just do that, but dont know yet.
 
r97

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well the problem with dies is that it can cross thread the threads and then your really done!
usually i buy a grade 5, cut it in half, put it on with the wrench, or vise clamps holding it not too tight, i have thought abut welding it, but i have never reached that point, and the only time i have done it while i owned a welder the welder was all put away, so it wasn't really worth it. but it works good! heres the tool, great idea, but wayyyy too pricey!
http://www.threadtoolsupply.com/murray-tools-split-die-thread-repair-12-13.html
http://www.youtube.com/watch?v=3JHMuh0KCNU
 
redsox985

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airsoft_warrior said:
i guess it doesnt really matter now. My brother after we bought the 6.5 hp engine we got it home and were swapping out the tires and rims for another set we had because the ones on the cart were old and dry rotted and had a hole in them. Any way, one came off with a few shots of wd-40 but the other was stuck. So my brother decided to hit the axel with a hammer to see if it would dislodge the wheel but all it did was mess up the threads so it doesnt matter whether we get the wheel off or not we cant thread the nut back on. Good bye go cart rebuild.
Click to expand...

Did we give up when the Germans bombed Pearl Harbor!!?!!?
 
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i did that on my first go kart..if you ever get the wheels off just hold a grinder at like a 45 degree angle and go around about a 1/4 inch of the threads or till you get to the none f***ed threads..real easy fix.takes about 5 minutes just make sure you take even metal off all around the spindle
 
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