New Generator pulley and fan fit issue

[snowman1510]

The new generator's key is to large for the Original pull and fan to slide over. Should I grind it? Below are photos of the new (large key) and old (low profile key).

[61polara]

Yes, grind it or look for bar stock of the correct size.

 

[JohnD1956]

A silly question but was the key way groove checked for debris? It looks to me like the key is not fully set into the groove

[snowman1510]

Is the key friction fit? I didn't look close enough but yes there is a groove.

[195354]

Try swapping  the key from the old unit into the new unit. The grove in the shaft is most likely the same depth. 

Steve 

[NailheadBob]

21 hours ago, JohnD1956 said:

A silly question but was the key way groove checked for debris? It looks to me like the key is not fully set into the groove

I would agree with John, try using a small pick and clean out groove in shaft and retry.

 

Bob

[Frank DuVal]

It's a Woodruff key, not square stock. Clean the groove and it should be tappable into the slot to where everything fits.

 

🦃🕎🍲☃️🍠🐖🎄🎄❄️

Edited December 22, 2023 by Frank DuVal (see edit history)

[Bloo]

Frank nailed it. It's a woodruff key. You can see it in the pics in the first post. Also as others mentioned, clean out the groove. Its a semicircular cut. If the key is really tight, you might have to squeeze it to get it in. If it is not really tight, it is going to try to tip as you shove the pulley on. See how the back end of the key is higher in this pic from the original post? That needs to be tapped or pushed down a bit, which will push the front up. It needs to be level. Looking like this, the pulley might go partway on and stop. If it persistently does this, you might have to tap the back of the key down with the pulley partway on. That is a bit risky because you might squish the key a little. Always clean it up and try it normally first. Tight is good. It helps it stay put while you slide the pulley on.

 

 

 

[EmTee]

FYI: https://www.huyett.com/blog/woodruff-keys