Where to purchase a new central bolt for a Honda HRR216VKA blades? Links please!

[sgkent]

But sgkent posted. "The key flat side usually goes into the crankshaft.". Which is correct?

Is it a slot that is like a half moon, or one like a plain slot. That will make the difference where it goes,

c/o huyett.com

or

c/o ls1tech

 

[MowerMark]

Is it a slot that is like a half moon, or one like a plain slot. That will make the difference where it goes,

c/o huyett.com

or

c/o ls1tech

WOW! Nice pix! It's a long groove just like the big pix (lower). I didn't see a small slot depicted in the top diagram. So how does it go if there is the lower config?

 

[StarTech]

It that case you normally use a long square key and not a Woodruff key; unless, the mating part has the half moon slot which machining it would a lot harder for the manufacture.

 

[MowerMark]

I called Honda tech support twice, and both agents were puzzled over this "key". They had two part numbers:

94901-16150

90751-ZG#-000

There was no long bar key. Seems I need to call a repair place.

 

[sgkent]

The model you posted has different variants depending on year.

I did look at quite a few of the variants based on your original post. Some came with a hub that the key was cast into it. That hub was superseded to ones that had a slot. Some use the half moon key. I think you need to take photos of your serial number, and the actual hub that holds the blade to a local shop and let them figure out what will fit. If you post the full serial number / model number I will be glad to help you look, but for now there is nothing else I can do without it. Here is a page that has many of the full model numbers related to what you originally posted. https://www.hondalawnparts.com/honda-hrr-lawn-mower-parts they all begin with HRR216

Alternatively you can go to your local Ace Hardware with the blade hub and see if they have a key that fits.

If it IS a long slot, and I have not seen your photo showing it is so we are taking your word for it - you are own your own on that, keys could be something like these in an $18 kit from Amazon. If you have one too strong, and you hit something again, it could damage the crankshaft. The idea is that the key sheers instead of the crankshaft breaking:

 

[kbowley]

The key is typically part of the blade adapter, but since it is a Honda, they can't make things easy. The bolt is not sacrificial; there was sufficient energy to overtighten and break the bolt after the key was sheared. Given that those have a weak 5/8 crankshaft and the weight of two blades, I can assure you that the crank is bent. I have junked more Honda lawn mowers with bent cranks or other problems, like cracked blocks, than I can remember. More than any other brand, by far. The remainder of the bolt is still inside the crankshaft in the photo. It is almost impossible to remove it. Not a good day for you or Honda.

 

[MowerMark]

The key is typically part of the blade adapter, but since it is a Honda, they can't make things easy. The bolt is not sacrificial; there was sufficient energy to overtighten and break the bolt after the key was sheared. Given that those have a weak 5/8 crankshaft and the weight of two blades, I can assure you that the crank is bent. I have junked more Honda lawn mowers with bent cranks or other problems, like cracked blocks, than I can remember. More than any other brand, by far. The remainder of the bolt is still inside the crankshaft in the photo. It is almost impossible to remove it. Not a good day for you or Honda.

Irrespective of any internal damage, it runs/sounds fine so far. If anything more than a key is needed, I'd give it away. I'm not mechanically-skilled.