Chain saw blade won't fit in bar groove

It is not just the Circumference of the clutch drum but you also have to have the correct width. From looking at your video it is without a doubt rubbing on the drum.

Loosen up the inner part of the clutch like you are going to take it off and see if it still rubs after that. That will tell you if there is something going on with the width.

 

I think you are right. When I backed started unscrewing the clutch inner part it would spin freely. Also it looks like the oil pump splines will not take the narrow splines on my new clutch cover. I also see on the box lid there are several options for spacers. I would really like to make this work but may go back to the old clutch cover since I have a ton of wood to cut this Saturday.

 

That's the incorrect clutch drum.
The new one, you can see where it has been squashed onto the oiler gear.
It doesn't have the correct splines to fit into the oiler gear
I don't know.
Were there any other parts in the box ?
Can you actually see if the splines on the new clutch drum fit down into the oiler gear ?

 

You’re right. It looks like it deformed the teeth on the gear. I think if I got a oiler gear that matches the drum it would work. Can’t seem to find an Oregon oiler drive. I can find ones on Amazon but they seem cheap. Any suggestions?

 

This sometimes gets real tricky when converting. You have to research and find the right worm gear (as its called) that matches that drum's splines. Usually you can find this with some searching where someone before you has done the swap and someone shares what model saws worm gear they used, or exactly what kit worked. The internal diameter and bevel is very important on that piece, as is the spline match to the drum you use.

This vid shows how I remove the clutch. Then it shows you a different style "spline" set-up.

These pics also show the wide and narrow splines. Can't intermix. Lots of research in your future, lol.


You should have been warned... oh wait:

 

You may need to put the spur clutch drum on for your weekend wood cutting.
Now that you are seeing what is involved with driving the chain you will be more cognizant of chain tension on your bar.
I know it's frustrating but all the things you are learning are good .
This is one reason some of us buy pro saws. The things you need in and on a saw are already there.

One habit to get into, the instant you throw your chain, pop the chain brake.
That stops the clutch drum and it can't beat hell out of your driver's. You may get 1 driver with a burr but not 3 or 4 or more.

 

The Wood Wolverine , thanks for posting the above video. It offers a pretty clear explanation of things for those of us that haven torn in to our saws all that far. It's nice to see just how the saw parts pictured in the post all fit together. Thanks.

 

This exact scenario is why I personally wouldn't advice someone without deeper knowledge to swap out a spur drive for a rim type. Been there, done that.



Paul Dokken If I had to advise on a new worm gear, I'd tell you to get an oem replacement. Then, if you still want to do the rim drive conversion, get a kit that has the drum and a worm drive that is specifically for your year 450. And make sure it's .325. If you run your chain tension a little tighter, and practice different cutting techniques, you will reduce the number of times it throws the chain.

If you go here: 325" Rim Sprocket Kit for Husqvarna 450 455 460 Chainsaw - Unbranded It says it's for your 450. But look at the splines where that oil pump worm gear touches. Through the years, one generation 450 may have that type worm drive. Lots of variables.

 

I wish I could see the part number on the worm gear with the narrow splines. Also I think I am missing a spacer between the clutch and the drum that keeps it from dragging g when I tighten it

 

Those pics are from a thread for a Husky 350 and 346. Not interchangeable. Another pic just to show variables.

 

Great advice. Thanks!

 

If anybody knows of a kit I would live to hear about it.

 

https://www.powerequipmentdirect.com/manuals/husqvarna-461ff27edb047870f4036abffc673fb1.pdf

This might be of use

 

How did the wood cutting go? Have u pursued the oilergear situation any more ?

 

Thanks for asking. I was real careful cutting the smaller stuff and the chain only came off once. I am still looking for an oil gear that will work with my sprocket. Not sure what else to do. Any suggestions would be great.

 

I think that guy needs to say something about greasing the clutch bearing while you are in there.

 

For Husqvarna 445, 460, 455E Chainsaw Pinion Worm Gear 537252601 | eBay

There is another one. It has a different part # .
There are a bunch of them on eBay.