Jonsered 2153 clutch drum damage

[BonScott46]

Hi guys, bought a like new 2153 off Swedish Ebay. The guy wanted to send it to me with the bar and chain on but I told him it needed to be removed for shipping. I received the saw and the clutch cover was half on with the chianbreak engaged. Everything looks ok but when I run it the clutch drum is rubbing on the break band causing the clutch drum to heat up and the saw to run hot. When I run it with bar and chain the teeth on the clutch drum have jumped out of the slots in the worm gear and then pressed into the worm gear at another spot so when I removed the clutch the worm gear had to be pried off the clutch drum. At first I thought it was something I had messed up when I changed the rim sprocket over to 3/8 but it has happened twice and I am sure I reassembled it correctly after the first incident. I also noticed it is harder than it should be to get a bar and chain on. I don't really know where to start. The break band looks to be sitting in the clutch cover in the right spot and the clutch drum is not obviously bent or rubbing on the clutch... Any ideas?

 

[Dub11]

Pics please ?

 

[BonScott46]

pics in a bit.

 

[BonScott46]

I have run the saw for maybe 10 minutes total. When I received the saw and ran the gas out of it with no bar and chain, before I changed the rim sprocket, I noticed the bar nuts would loosen almost immediately after tightening them. None of my other saws do this.

 

[Dub11]

With no bar and chain iam pretty sure the cover wouldn't tighten all the way. And the clutch brake is disengaged?

 

[Dub11]

And it looks like something was rubbing on that cover too

 

[BonScott46]

Clutch break is disengaged. That is what I am saying is that the clutch drum seems to be rubbing the break band and the cover all the time. I am wondering why that is and what I should check/replace to stop this from happening.

 

[Dub11]

I had a 2145 and the first time I put it together the back of the cover wasn't seated properly and took a little wiggling to make it fit right.

 

[BonScott46]

Side cover seems to fit fine, no problem getting it on or off. I am assuming the bar nuts loosen so quickly because the clutch drum is contacting the cover/break band and transfering more vibration? I guess I will start with the process of elimination and switch out the clutch drum and the the side cover.

 

[Dub11]

Maybe @psuiewalsh or @dustinwilt68 can chime in they would have more info than me
Sorry I couldn't be more help good luck and nice saw.

 

[psuiewalsh]

Is the drum sitting above the oiler worm slots? If not engaging it could stick out too high. Also there is a spur and spline type worm that could be wrong if the brake is fully released.

 

[old guy]

Look the clutch cover over carefully for cracks.

 

[BonScott46]

No cracks in the cover that I can see. Do you guys finger tighten the clutch when putting it back on or something more?

 

[BonScott46]

Only thing I can think of concerning the worm gear is that I am not tightening the clutch enough after reassembly.

 

[dustinwilt68]

Clutch hand tight should be plenty, it will tighten itself, my guess is the brake band has a slight bend in it, I have seen this happen on a 372xp, you couldn't see it almost, it doesn't take very much, but I would replace the cluch drum and the side cover as well and I think the issue will go away. If it is a nice 2153 then it is worth it, they are harder to find then most.

 

[mdavlee]

Since you have nothing to lose pull the band out of the clutch cover and see if that fixes all the other problems. More than likely the band has a bend and is touching in one spot or the drum is warped.

 

[huskyboy]

A 394 drove me nuts for a while as it broke 2 brake bands, they were rubbing against the clutch drum. After many attempts to resolve the issue, a am side cover/brake assembly with a new clutch drum/sprocket and bearing fixed the issue.

 

[BonScott46]

I am going to go with a process of elimination and switch out each piece. We will see. Still not sure why it was jumping out of the worm gear. Thanks for all of the feedback guys.

 

[BonScott46]

Don't know if anybody cares but I thought I would update. Switche to a known trouble free clutch drum and it rubbed. Switched to a brand new brake and it still rubbed. Switched to a trouble free clutch cover from a 2152 and the problem stopped, also the bar nuts did not come loose at all with no bar and chain like the 2153 cover. I am going to take a dremel to the all the ridges behind the spots in the brake band that are rubbing and shave them back .020 or so, hopefully avoiding having to buy a new clutch cover.

The worm gear problem is still in play and I am about at my wits end. I took the 2152 clutch and worm gear off just to check that I had not forgotten a washer, which I had not, put the thing back together and now it is having the same problem!!! I had changed the drive sprocket on this saw several months ago and run it without issue but now it is doing the same thing as the other. What in the world am I doing? There must be too much play between the clutch drum and clutch allowing the drum to jump the worm gear and then bind the gear and clutch but why? It feels like a washer behind the clutch would be the solution but there is not supposed to be one there on these saws. I am running out of ideas here so I may just try one I have sitting around.