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kpinnc

Balance gears K321

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Gregor
3 minutes ago, killroy said:

No numbers. Cover is long gone . I don't remember if it had them when I replaced rod 20 years ago.  Lol

 

No cover for 20 years, and it still runs?

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killroy

Lol replaced with a non rotted cover 

 

 

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Jon925mn

Reading about the balance gears has me nervous about my new to me K321 on my C-145. This engine makes way more racket than my 10hp on my 310.

Granted it floats vs frame bolted but it still sounds loud to me. I was just planning on blowing snow this winter and then read about this issue. Now the noises

seem more noticeable because I'm listening for doom. Does anyone have video of what bad gears sound like?

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ebinmaine
On 11/27/2021 at 8:12 PM, kpinnc said:

Ok, so he drove out the pin and then back when finished

 

Well folks I tried this today on my C160 Automatic K341. 

 

Bit of a chore driving the pins but it worked great.  

 

I did end up causing a mushroom end on the second one so I had to slice off the end with help from a Dremel.  

Don't care. It works fine the way it is. The shafts only need to be driven back in to prevent oil escaping.  

 

 

IMG_20230101_123850084_HDR.jpg

IMG_20230101_125259222.jpg

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oliver2-44

Driving the pins seems like a lot of extra work. The gears split so easy with a cold chisel. 

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ebinmaine
8 hours ago, oliver2-44 said:

Driving the pins seems like a lot of extra work. The gears split so easy with a cold chisel. 

I agree with that in principle. 

I tried the split with the chisel I had available. 

Fail.  

 

I do however have a VERY nice set of long straight round Starrett punches. 

 

More work? Yes. 

Got it done though...

 

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kpinnc
19 hours ago, oliver2-44 said:

Driving the pins seems like a lot of extra work. The gears split so easy with a cold chisel. 

 

I went with the pins because I wasn't sure if I could find all the fragments and needle bearings if I used a chisel. My vision up close is not what it used to be. 

 

Whatever method works for you, works for me! :thumbs:

Edited by kpinnc
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953 nut
11 hours ago, kpinnc said:

went with the pins because I wasn't sure if I could find all the fragments and needle bearings if I used a chisel

:text-yeahthat:         I have always had that thought about the broken gear fragments causing a problem later on.

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kpinnc
15 hours ago, 953 nut said:

I have always had that thought about the broken gear fragments causing a problem later on.

 

And for clarification- you only pop out the top pin. The lower clip is easy to reach. 

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