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BF45-10 amp charging kit

A

arima_fan

Member
Need advice on installing this kit.
Have the Honda shop manual for this particular engine, they make the removal of the fly wheel sound like a walk in the park...
But for starters I do not have the Honda tool to hold the fly wheel while loosening the 4 bolts. Per manual they are torqued to 60+ lbs. So holding the wheel is a must, any suggestions on an alternative? Then hopefully the wheel will POP up easily.
Any other way to do it? Could buy the tool.but cheapest I found was over $120, for 1 time use is not worth it.
Thanks
 
The torque is 66 neuton meters or 47.7 ft lbs. Really not as bad as you think.

I usually use a flywheel holder...but you can probably use an impact to break them loose.

If you do not have an impact gun. Maybe this will work. Use two wrenches or one wrench and one ratchet. Put the wrench on one of the bolts and the ratchet on the bolt to the right of it that you want to loosen. Use the wrench to hold the one bolt, which should hold the flywheel enough to loosen the bolt with the ratchet. Once it is loose, move clockwise around the flywheel. You should be able to do this to loosen 3 bolts.

Then loosen those three bolts enough to get a good size screwdriver in between them, which should hold the flywheel to loosen the last bolt.

I have never tried this, but seems like it will work in theory.

If it does not work, maybe at least, it will spark some other creative idea as you are looking at it.

You may need someone to help you pull the flywheel off after that. If it is not corroded, the magnets will be holding it on. They are pretty strong and will take a little effort to lift it off. You may have to wobble it from one side to the other to get it to move.

Putting it back on, you should be able to torque it, if you have someone use a big screw driver and use the lifting eye or mounting as a support and wedge the screwdriver into one of the teeth in the flywheel. Do all this very carefully, so that noone slips with the screw driver or torque wrench.

If you rotate the flywheel at all, be sure to rotate it only counterclockwise. There should be an arrow on top of the flywheel. If you rotate it clockwise, it can mess up your impeller.

Mike
 
Thanks,
I was looking at the large screwdriver and lifting eye scenario, I do have some 1/4" aluminum and thought maybe I can make a plate(airplane mech by trade, worked a few years doing sheetmetal repairs, also have some 1/8" stainless but that might damage the teeth)

Thanks again
 
The Honda holder is steel. As long as you are not banging on the teeth, a stainless holder should not hurt it. Sounds like you are on the right track.

Mike
 
If you set the wrench so you are pulling straight out from the center it will not rotate the flywheel. You can try this with a rachet and just back it up a few clicks at a time until it doesnt move the flywheel. It also works if you are pushing straight at the center but most people find it easier to pull than push.

On a seperate note can you provide details on the kit. Will it work on a BF40A?
 
Don't know if it works on the 40. I'll find out...
According to the Honda web site the BF40 and 50 already are 10 amp systems.
 
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