Nik's Poulan Thread

[Jethro 2t sniffer]

2020 welcome

You guys are late. Hahaha happy new year.

 

[redunshee]

I have 2 4000's. One is a chainbrake model and of course they run. I really don't like chain brakes, on the 4000 and such they add too much weight. I ran saws without brakes forever, never knew I needed one.

I'm like Mark. Never used a chain brake saw in my earlier years. I do have 3, 4000's, one of which was ported by Randy Evans.

 

[Todd Loosli]

Bob how much difference is there between the two 4000, ported and not ported, I'm going to port a saw sometime in the near future.

 

[redunshee]

Bob how much difference is there between the two 4000, ported and not ported, I'm going to port a saw sometime in the near future.

Haven’t really compared them back to back. Compression is very high at 175. Randy said the thing holding the saw back is the carb. Needs a bigger carb. Unfortunately a bigger carb would require an impulse nipple on the cylinder. I’m uneasy about doing that.

 

[Jethro 2t sniffer]

Would love to see inside that 4000 cylinder. When's it coming apart next? Lol

Interesting about the carb

 

[Todd Loosli]

Bad thing about the carb is all the bigger ones that I have seen have the needles on the other side or if you turn them they are on top. Maybe someone will have the answer for a direct change over

 

[Todd Loosli]

Last week on flebay there was a new 3700 piston kit and a 4000 piston kit for 36.99 each and free shipping. I saw it at 130AM the package arrived yesterday. I suck .

 

[Jethro 2t sniffer]

It pays to be a night owl sometimes

 

[redunshee]

Would love to see inside that 4000 cylinder. When's it coming apart next? Lol

Interesting about the carb

Might be something to do on a cold day.

 

[s sidewall]

Last week on flebay there was a new 3700 piston kit and a 4000 piston kit for 36.99 each and free shipping. I saw it at 130AM the package arrived yesterday. I suck .

Nice find Mr. Todd, that's cheap. Poulan or AM? I don't deal with little red barn after getting burned on a 3400 kit from them.

Steve Sidwell

 

[Jethro 2t sniffer]

Might be something to do on a cold day.

I'm curious about the open transfers and what he would do with them

 

[Todd Loosli]

The pistons are real new poulan still sealed in the bags, the rings are worth the price of the deal

 

[3000 FPS]

I'm curious about the open transfers and what he would do with them

You make them bigger by making them wider and deeper. Then point the tops toward the intake side. Or someone could try some finger ports on one. I was thinking of trying that sometime.

 

[3000 FPS]

Haven’t really compared them back to back. Compression is very high at 175. Randy said the thing holding the saw back is the carb. Needs a bigger carb. Unfortunately a bigger carb would require an impulse nipple on the cylinder. I’m uneasy about doing that.

I have heard that too about the carb. I also heard the intake is somewhat restrictive too but that can be smoothed out some and opened up a little.

 

[s sidewall]

The pistons are real new poulan still sealed in the bags, the rings are worth the price of the deal

Well that's a super deal of a find.

Steve Sidwell

 

[Jethro 2t sniffer]

You make them bigger by making them wider and deeper. Then point the tops toward the intake side. Or someone could try some finger ports on one. I was thinking of trying that sometime.

Scary thought grinding on a 4000 cylinder

 

[3000 FPS]

Scary thought grinding on a 4000 cylinder

I have a 3700 here that needs to be gone through. If I ever do it I will post some pics.

 

[Jethro 2t sniffer]

I have a 3700 here that needs to be gone through. If I ever do it I will post some pics.

That would be good. Have you ported some saws?

 

[3000 FPS]

That would be good. Have you ported some saws?

Yes a few. But I do not go crazy with the porting. I like using all my saws and want them reliable.
Here is a picture of a Poulan 505 that I ported and added finger ports. The pic is a little blurry but you get the idea.
This is now one of my milling saws.

 

[3000 FPS]

Here is a Pic of a table I made from Lodge Pole pine and was milled by the Poulan 505. It is 8ft long. It is the saw in my avatar.

 

[Jethro 2t sniffer]

Yes a few. But I do not go crazy with the porting. I like using all my saws and want them reliable.
Here is a picture of a Poulan 505 that I ported and added finger ports. The pic is a little blurry but you get the idea.
This is now one of my milling saws.
View attachment 784734
View attachment 784735

Wicked man so do you get into the port timing or just widen and the fingers. Does the 3700 have the bridge in the intake like the 4000? I was wondering if that really needs to be there.