Looking for a Rim Sprocket..

Jimmy in NC

Mill Monkey
Aug 27, 2013
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Looking for a rim sprocket in standard 7 spline size but in a .325-8. Does such an animal exist? I've got a 452VL Echo and would like to run .325 chain on it but not sure it's an option. Currently it's pulling 3/8-7 but at 45cc.. it would be happier with .325. Just wondering if it's even an option.
 

TK

Hand Rubbed Pork
Jan 9, 2012
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Looking for a rim sprocket in standard 7 spline size but in a .325-8. Does such an animal exist? I've got a 452VL Echo and would like to run .325 chain on it but not sure it's an option. Currently it's pulling 3/8-7 but at 45cc.. it would be happier with .325. Just wondering if it's even an option.
So you're looking for a rim in the spline size to the right, but a 8-pin not a 9?

 
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psuiewalsh

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Jimmy in NC

Mill Monkey
Aug 27, 2013
17,025
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Where tobacco is a vegtable
So you're looking for a rim in the spline size to the right, but a 8-pin not a 9?

That is correct. It's not a big deal and I know most people go the other way. My use for this saw will be smaller stuff though and as it is 35+ years old.. why not make it a bit easier on the little one.
 

Jimmy in NC

Mill Monkey
Aug 27, 2013
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It's what I figured. The saw came with 3/8 chain and I should probably just keep it that way. Thanks for looking though!

I've got a .325-9 rim and a 20" Stihl bar... going to put it on the ported 372 in the near future just to see what insane chain speed does on small chain. Bet it stays close to the rev limiter!
 
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TK

Hand Rubbed Pork
Jan 9, 2012
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www.tkpowerequipment.com
It's what I figured. The saw came with 3/8 chain and I should probably just keep it that way. Thanks for looking though!

I've got a .325-9 rim and a 20" Stihl bar... going to put it on the ported 372 in the near future just to see what insane chain speed does on small chain. Bet it stays close to the rev limiter!
I've thought about doing that as well - but I don't have a rev limiter :bananamu:
 
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psuiewalsh

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There was a 325-9 on the Dolmar 120 when I got it. It did not cut noticeably faster than 3/8 7 which I switched to since it is less teeth to file. Both were 20" I have some 3/8 -8 sprockets that I run on my 064 with 20" and prefer that size on it. It is fun trying different combos but I usually end up with 3/8 if the saw will pull it on the bar length I want
 
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SawTroll

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Looking for a rim sprocket in standard 7 spline size but in a .325-8. Does such an animal exist? I've got a 452VL Echo and would like to run .325 chain on it but not sure it's an option. Currently it's pulling 3/8-7 but at 45cc.. it would be happier with .325. Just wondering if it's even an option.
.325x8 is not possible in standard 7-spline, as there would be interference between drive tangs and splines. 3/8x7 is only possible because they can fit the 7 tangs between the 7 splines. :wink:
 
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Jimmy in NC

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I haven't seen any Oregon rim drive options, only spurs :(
Anything smaller than 3/8-7 in a spur available? I don't have good luck trying to sort Oregon's stuff for some reason. Saw is a 452VL Echo...vintage magnesium. If not, it's ok! It's going to wear a 16" B&C and only be used on occasion so I can make the 3/8-7 work.
 

Jimmy in NC

Mill Monkey
Aug 27, 2013
17,025
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Where tobacco is a vegtable
Its all good. The saw runs pretty good with a 16" bar on it. Its no ported 372....or the ported 288 I've been running lately but its a neat old vintage saw with some sentimental value to me. 3/8-7 it'll be!
 
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