Nik's Poulan Thread

[dynodave]

Has anyone noticed the difference in Poulan 25 series drums? I have 19779 rim drums that are 1" wide and the same number that are .9" wide. Did they change clutch widths at some time? The oldest boxes are the widest drums. A couple are set up with 3/8LP-7 rims and most have 1/4-9 rims. One box is labeled 23115 / 19779.

dsell
I recently went through that whole exercise on my 2-25 series. If you look more closely you will see the 2 different mini 9 spline are 1/4 and full 3/8 (probably for the husky22 application)...not 3/8LP. No one... to date... has been able to come up with a 3/8LP rim of any manufacturer....mini 9 spline or small 7 spline or standard 7 spline. At least I've not seen it.
As to the 1.0" or .9" all mine are 1" and needle bearing while the originals were bronze bush which might enter into it?

 

[ChipsFlyin]

Hi all, been lurking quite a while trying to absorb all the good information available on this forum. Was cutting a bit of wood today and decided to take a few pics and a video of a craftsman 3.7 thin ring that I picked up from craigs list a month ago for $25 dollars and am impressed with it's performance after a carb rebuild and muffler mod.


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Welcome to AS and the Poulan thread!!! Check your PM's. I sent you something to go along with the 3.7

 

[dsell]

dsell
I recently went through that whole exercise on my 2-25 series. If you look more closely you will see the 2 different mini 9 spline are 1/4 and full 3/8 (probably for the husky22 application)...not 3/8LP. No one... to date... has been able to come up with a 3/8LP rim of any manufacturer....mini 9 spline or small 7 spline or standard 7 spline. At least I've not seen it.
As to the 1.0" or .9" all mine are 1" and needle bearing while the originals were bronze bush which might enter into it?

These don't have the bronze bushing. They are all needle bearings wide or narrow drums. I've never seen 3/8 rims like these. So, will the drum depth matter? Thanks for the reply.
The pictures are the 23115, one is 1.05 and the other .90 wide. I think the 23115 means the set came with 3/8-7 rim verses 1/4-9.

 

[Acornhill]

There are some on eBay right now

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[dsell]

Here are the 19779 drums in the oldest boxes with 1/4-9 rims. They are 1.05 wide.

.

 

[fossil]

All, I recently went through a friend of mine's Father's Poulan 3700 bow saw to get it running again. The piston and cylinder looked good/very good but the saw had a broken handle and was missing parts galore. I used a couple of parts saws to complete it and gave it back to him to give to his Dad. His Dad didn't get a chance to pull it over as my friend used it to try and down a tree that was already partially down and leaning badly. He got it pinched and left it there overnight. The thing is I had let him borrow a Craftsman 3700 with a 20 or 24 in bar (off of a 4000) to assist with his needs. The following pics are of the saw post loss. Not too good. The Poulan bow bar was SUPER nice before it was wrecked, as it hadn't ben used too much in the past
I imagine its broken up to an extent and I wonder if the case is ruined at the bar bolt area. Well, we'll see. Be careful out there. Max.

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That's bad. Was that yours or the one you fixed up for his Dad?

 

[FamilyTradition]

Tim, it's the one I fixed up for his Dad. Yep, it looks pretty bad. I expect he'll bring it to the office next week. I'm hoping for the best, but know it's probably a parts saw now. When possible, I'll post more and better pictures.

 

[Acornhill]

Tim, it's the one I fixed up for his Dad. Yep, it looks pretty bad. I expect he'll bring it to the office next week. I'm hoping for the best, but know it's probably a parts saw now. When possible, I'll post more and better pictures.

That is sad

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[dsell]

The 3/8-7-9 rim is larger and thinner than the other, but the pitch is the same.
.

 

[dynodave]

I looked at the diameter of the 3/8-7-(9) rims on my craftsman (25 series) put by mistake with a LP chain. It seemed to me to be a bit tall for the tail of the bar. Beside the chain did not mesh very good on the rim LOL
It may well be that the .9" drum is for the husky 22 after all and not really the 25 series saw. How ever the 19779 rim drum kisses the inside of the clutch cover a touch and I may well buff it off on the belt sander.
Correction... it's my clutch that rubs the cover not the drum.
It is wider than the clutch shoes by......drum roll please.....about .1"
You should measure to see if it is the drum or the spline section that has been shortened/ reduced. It might help to decide.

 

[Acornhill]

You guys always make me dig out my shttt

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[Acornhill]

1/4 sprockets

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[fossil]

Tim, it's the one I fixed up for his Dad. Yep, it looks pretty bad. I expect he'll bring it to the office next week. I'm hoping for the best, but know it's probably a parts saw now. When possible, I'll post more and better pictures.

That is a shame. It should have been an MS 290, If nothing else, hopefully you can save the P&C and crank.

 

[dynodave]

The 3/8-7-9 rim is larger and thinner than the other, but the pitch is the same.
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If you lay some new 3/8 on those rims then try 38LP you may decide what they are meant for....I'm guessing they are really 3/8. If they were 3/8-6-9 then I would think maybe LP?
The 25 series use the 28006 for 3/8lp spur which is even smaller diameter than the 1/4-9 rim. you probably know that anyway... FWIW that drum 28006 is about 1/10" narrower than 19779 and a perfect match for the clutch.

 

[dsell]

If you lay some new 3/8 on those rims then try 38LP you may decide what they are meant for....I'm guessing they are really 3/8. If they were 3/8-6-9 then I would think maybe LP?
The 25 series use the 28006 for 3/8lp spur which is even smaller diameter than the 1/4-9 rim. you probably know that anyway... FWIW that drum 28006 is about 1/10" narrower than 19779 and a perfect match for the clutch.

Good thought. They are indeed 3/8 low profile rims. 3/8 standard pitch chain does not work on them. Here are some shots showing the difference as you stated between the 28006 and 19779 / 23115.

 

[Acornhill]

For power Sharp set up

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[dynodave]

I held the new 3/8-7-9 rim in my hand and tried each NEW chain by letting it hang down. They do both lay on the rim and conform to the curve. The 3/8 lp is very sloppy and slides a LOT before the pins restrain the chain driver. The regular 3/8 driver is MUCH more conforming to the length of the slot between the pins. The sloppy slot is what initially caused me a year ago to look into the suitability of the 3/8-7-9 rim on the 25 series saws. IMO it is not for 3/8LP at all.
I now use 1/4 with either a rim or spur and hardnose bar. I can swap the drum to use the spur with 3/8LP with the same bar.

 

[Acornhill]

I held the new 3/8-7-9 rim in my hand and tried each NEW chain by letting it hang down. They do both lay on the rim and conform to the curve. The 3/8 lp is very sloppy and slides a LOT before the pins restrain the chain driver. The regular 3/8 driver is MUCH more conforming to the length of the slot between the pins. The sloppy slot is what initially caused me a year ago to look into the suitability of the 3/8-7-9 rim on the 25 series saws. IMO it is not for 3/8LP at all.
I now use 1/4 with either a rim or spur and hardnose bar. I can swap the drum to use the spur with 3/8LP with the same bar.

So can the 3/8 x 7x9 be for regular 3/8 for the S25? You can surely run regular 3/8 on a S25 correct?

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[dynodave]

So can the 3/8 x 7x9 be for regular 3/8 for the S25? You can surely run regular 3/8 on a S25 correct?

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I think the 3/8-7-9 rim was originally for the husky22 application. Tough to find much info on this...It could possibly be used on the 25 series ( I would think it has the balz-OK) but the bar tail D041 profile? hard nose bar... seems a bit narrow, but I'm no expert in this or most chainsaw areas.. I ended up pursuing 1/4 as my preferred setup for the smaller craftsman 2.1PS with lower HP..... 3/8 cutter would possibly work with rakers that are not agressive?

 

[Acornhill]

hmmm, we learn something new everyday, i acquired these rim sprockets from an old saw shop that had been out of business for sometime. The boxes actually say for S25 in pencil. I would really like to know. I will check my Oregon books this weekend.

thank you