Nik's Poulan Thread

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It's been 35 years since I tig-welded anything. But if memory serves, magnesium would weld the same way as aluminum. Tungsten Inert Gas allows smaller and stronger welds than would a wire-fed method. With enough practice y'all should make nice welds that need no dressing with grinders. One thing I remember all too well is that the pretty light is several times stronger than ordinary welding light and Very Dark lenses are needed.
Igpoe:cheers:

It looked like to me that magnesium welding would be somewhat harder to get right. The aluminum looks like it flows a lot smoother than the mag. The guy on youtube made aluminum welding look like a piece of cake. I tried it and it's not as easy as he made it look.
 
It looked like to me that magnesium welding would be somewhat harder to get right. The aluminum looks like it flows a lot smoother than the mag. The guy on youtube made aluminum welding look like a piece of cake. I tried it and it's not as easy as he made it look.

Quite right, but almost always the troubles with either one are the result of some contamination. All welds resist our efforts if foreign chemicals are present, but aluminum or magnesium to be Tigged, much moreso. Cleanliness=Godliness LOL.
Sandblasting/beadblasting are good ideas prior to.
Igpoe:cheers:
 
Another one lives. :msp_biggrin: I Just wanted to thank everyone for either answering my questions, or for answering them on here before I even knew that I was going to ask them. My first jug and piston transplant is complete and running well.

Craftsman 3400 with a swapped 3700 jug and piston. Piston has some light scratches but they cleaned up with some 600 grit. Used 515 loctite, no base gasket. seems to run well. I will do a compression test after i get a tank through it.

DSCF2938.jpg


DSCF2931.jpg


DSCF2933.jpg


Puller I made to get the wrist pin out and back in.

DSCF2941.jpg
 
Another one lives. :msp_biggrin: I Just wanted to thank everyone for either answering my questions, or for answering them on here before I even knew that I was going to ask them. My first jug and piston transplant is complete and running well.

Craftsman 3400 with a swapped 3700 jug and piston. Piston has some light scratches but they cleaned up with some 600 grit. Used 515 loctite, no base gasket. seems to run well. I will do a compression test after i get a tank through it.

DSCF2938.jpg


DSCF2931.jpg


DSCF2933.jpg


Puller I made to get the wrist pin out and back in.

DSCF2941.jpg
looks good. Thick ring piston like a 3800
 
A couple more 3400-4000 Series Newbee Questions from Aaron...

I'm still trying to understand what's interchangable within this series. Can the 3400, 3700, 3800, and 4000 P/C sets all be interchanged within the series? For example, can a 4000 P/C set be swapped onto a 3400 bottom end? Can a 3700 or 4000 P/C set be swapped onto a 3800 bottom end?

Any differences in the cranks, wrist pins, rods or crankcases within the series? I don't have all the bore/stroke specs for the four saws in this series. Acres' site has little info on them.

Are any of the grey/black Craftsman 3.7 saws 3700's instead of 3800's, or are all the Craftsman 3700's red/black? A grey Craftsman 3.7 has become available somehwat near me, as has an as of yet unknown-model grey/black Craftsman 3.4/3.7/3.8. Both look just like the Craftsman 3.4 in the pics above. I don't have the Sears model #'s from either of 'em yet. Gotta decide whether it's worth driving a couple of hours each way to go get 'em.
 
I'm still trying to understand what's interchangable within this series. Can the 3400, 3700, 3800, and 4000 P/C sets all be interchanged within the series? For example, can a 4000 P/C set be swapped onto a 3400 bottom end? Can a 3700 or 4000 P/C set be swapped onto a 3800 bottom end?


As far as I know the answer is YES...as long as you swap them as a set. Plated/aluminum or aluminum/plated.


Bottom ends are all the same.



Are any of the grey/black Craftsman 3.7 saws 3700's instead of 3800's, or are all the Craftsman 3700's red/black? A grey Craftsman 3.7 has become available somehwat near me, as has an as of yet unknown-model grey/black Craftsman 3.4/3.7/3.8. Both look just like the Craftsman 3.4 in the pics above. I don't have the Sears model #'s from either of 'em yet. Gotta decide whether it's worth driving a couple of hours each way to go get 'em.


Mark can answer that better than I can but.....

Very little is set in stone with Poulans and even less (as a rule) with the rebagded ones.
Add to that the fact that these saws have been around for up to 30 years and who knows what has been replaced with what and the real answer is you will just have to give the saw the once over and check it for yourself.


Mike
 
As far as I know the answer is YES...as long as you swap them as a set. Plated/aluminum or aluminum/plated.


Bottom ends are all the same.






Mark can answer that better than I can but.....

Very little is set in stone with Poulans and even less (as a rule) with the rebagded ones.
Add to that the fact that these saws have been around for up to 30 years and who knows what has been replaced with what and the real answer is you will just have to give the saw the once over and check it for yourself.


Mike

The only thing I can add is the the red 3.7's are mostly 3700's but I have seen at least one red 3800.

I have never seen a grey 3700, all have been 3800's and being newer it makes sense.

Bottom ends are all the same, I'm getting ready to put a 3700 crank in this 4000 tomorrow.
 
I gave the PP415 a little tree time today, yes it's a big bar, but I never even try to bury it, I just like to be able to make the cut in one pass. That saw pulls it like it was meant to.
TreecuttingApril30024-Copy.jpg
TreecuttingApril30017-Copy.jpg
 
A while back I mentioned that I was kinda holding back lately and working on a couple of bigger deals.

Well I got a big box delivered today!

Will let you guys know more later in the weekend.

:rock:

Ok I don't know why but I cannot get the pictures to upload. I'll try again later but I will tell you that it is a Poulan Pro 655 High Performance.
 
The only thing I can add is the the red 3.7's are mostly 3700's but I have seen at least one red 3800.

I have never seen a grey 3700, all have been 3800's and being newer it makes sense.

Bottom ends are all the same, I'm getting ready to put a 3700 crank in this 4000 tomorrow.
yea. As I recall 3800' s are thick ringed.
 
Ok I don't know why but I cannot get the pictures to upload. I'll try again later but I will tell you that it is a Poulan Pro 655 High Performance.



NO WAY!!!!


I would have never guessed that!!!


I'm working on a little surprise myself right now!!!
Two can play the suspense game!!!:msp_tongue:


Mike
 
Lemmie try this since I cannot upload to the site.



Uploaded with ImageShack.us



Uploaded with ImageShack.us

Now there here at least anyway.

Guys go rep Jerry, "Pioneerguy" for helping me out with this one! A Poulan Pro 655 High Performance. He is a great guy around here for sure.

Not had a chance to go over it much but it seems to be a great one.

I dont care if Pioneer designed it, Poulan adopted it and its a great one no matter how you look at it.

The decals are gone because it seems they were used to help Joe create new ones for it and Joe says they should be ready any day.
 
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