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Please help identify these 2 washers on MC28


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econo

 
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Please help identify these 2 washers on MC28

Mon Apr 20, 2015 3:34 am » Post: #1 » Download Post



i lost these 2 washers and after a simple math, it would be cheaper to just make them myself.
now i need a detailed specs of the washers,
please help me with exact spec of the washers indicated in the diagram above (OD, ID and thickness).

thank you in advance!
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foxmcscrooge

 
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1996 Honda MC28 SE
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Tue May 05, 2015 3:56 pm » Post: #2 » Download Post

Hi Econo,

23 is a spring washer so I doubt you can make it.
7 is a collar/spacer that slides over the axle; not a washer. Without it, your wheel will move around and probably bind up between the bearing carrier and part #5. I'd like to help but it would mean pulling apart my bike which I'm not likely to do anytime soon as it's all running perfect!

Cheers
Jim
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econo

 
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Tue May 12, 2015 3:44 am » Post: #3 » Download Post

foxmcscrooge wrote:Hi Econo,

23 is a spring washer so I doubt you can make it.
7 is a collar/spacer that slides over the axle; not a washer. Without it, your wheel will move around and probably bind up between the bearing carrier and part #5. I'd like to help but it would mean pulling apart my bike which I'm not likely to do anytime soon as it's all running perfect!

Cheers
Jim


Hi Jim!

thanks for the response.

at the moment #23 is sorted. i purchased a spring collar similar in size to the axle. it seems to be working just fine as i believe its function is only to keep the big bolt tight, right?

#7, however, i seem to be not using it. the sprocket bolts are incredibly close from rubbing the bearing holder, but it clears it.
i'm also in doubt that this setup will work ideally. i'm about the machine the said collar but a bit unsure on how thick it needs to be.
i guess 2mm will do? just enough so it clears the bearing holder and the chain remains inline, yes?

i guess i need to be more careful on where do i put things around,.. oh well..
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foxmcscrooge

 
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1996 Honda MC28 SE
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Tue May 26, 2015 12:30 pm » Post: #4 » Download Post

Econo,

I cannot stress this enough. Do not ride the bike without that collar. It is potentially extremely dangerous. How do I know? When I rebuilt my 28, I bought a new bearing carrier (part 3 in the diagram) because the previous owner had butchered the original. When I swapped it over, I forgot to install the collar (part 7). I rode a few hours south of Brisbane at 100kmph plus. On the way it felt a few times like the wheel was moving around. I stopped and checked every time but couldn't see anything obvious so I put it down to the wet roads. Just as I was riding into town, the back wheel fully bound and locked up. Initially I thought I had seized the engine.

The collar is designed to slide over the axle and under the seal (part 29 on the diagram you have but it is covered by the red circle) on that side of the bearing carrier. So on one side the collar butts against the outer bearing in the bearing carrier and on the other side the sprocket carrier (part 5). On the top it makes a water tight seal against the outer bearing carrier seal. It is meant to butt against the part of the bearing that rotates. Without the collar, at the very least the axle can move around or worst the inside (not the sprocket bolts) of the sprocket carrier can and eventually will bind against the outside of the bearing carrier. Obviously the bearing carrier doesn't rotate as the wheel turns while the sprocket carrier does. The collar also correctly locates the sprocket carrier to align with the counter shaft sprocket so the chain runs true.

If I were you I would buy a new one. The same part is run on the VFR400 so there are plenty available. Try a google search with the part number.

Sorry to be so blunt but I'd hate to see you go down the road and hurt yourself or the bike.

Cheers
Jim
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econo

 
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Wed Jun 10, 2015 2:11 am » Post: #5 » Download Post

hi Jim,

thank you for your concern.
i eventually machined the said collar myself. as i don't know the exact dimensions, i just made it 3mm thick. now the sprocket holder is surely clears the bearing carrier more than before. just for my peace of mind as i thought about the rear wheel binding as well..

thanks again Jim!
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