Nik's Poulan Thread

[redunshee]

Sooo the fuel line(s??) were toast in the 5200 I got last week.

Never had a 5200 before so I'm not entirely sure what I'm looking at. Got it figured that the hole on the right is where the hose comes from the fuel tank to the carb. What is the hole on the left for??

I will now go search ' 5200 fuel line replacement ' and see what shows up!!

The hole on the left is for the tank vent. I believe there is supposed to be something inside it. Mine is open but it does unscrew. Maybe ModifiedMark can explain whta is missing.

 

[XPLRN]

One more point. The muffler cover bolts are not original. Someone jerryrigged them. The correct part is 530015375 and are 1/4x20x 2 1/2 in. long

I did mention that I had made some changes;

..............exiting thru some MM work. I studded the fastening of the muffler to the cylinder,

I prefer to think of that mod as a enhancement to future service/modification work on the muffler. Figured I'll be taking that muffler off and on in the future so wanted to take the wear off the aluminum threads in the cylinder. If that makes me a jerryrigger sooo be it. :biggrinbounce2:

The drilled holes, when added up for total muffler opening increase, should be equal or greater than the original muffler exit hole..........we'll see how it plays out.

 

[XPLRN]

The filter on the left is for the 3400 and 3700 saws. The one on the right is the correct filter for the 4000 with the high top cover. You can use the 3400 and 3700 filter on the 4000 but you'll need to use the corresponding filter cover from a 3400 or 3700. The 4000 filter and cover is much better. I also think you can use larger holes on your muffler mod.
Bob

Thanks, Bob, for your shared knowledge on the air filter situation. Not happy about getting the wrong part.........sooo it goes when dealing on the internet. I'll go search for a duplicate of what I've got..........I couldn't see it well in the sellers picture and thought it was just the difference between a normal and cold weather filter being as mine was the fine nylon mesh design.

 

[Warped5]

5200 Fuel line pic

Here's what my Craftsman 5.2 looks like (I know it's not showroom clean YET .. )

Hopefully one of the gurus will be along to explain the tank vent setup ..

 

[zogger]

check out what mcbob did over in the yellow thread... http://www.arboristsite.com/stickies/71126-938.htm#post3584318

Neat stuff! Had to go back one page to see what was happening, but found it. Those are hugemongous though, I was thinking two of the smaller poulans might still be handy enough to use. Interesting he used a clutch to combine them, I was thinking a common crank then work on the ignition system, proly with something off a twin cylinder motorcycle. Or I don't know, I guess if you really did your timing and stroke work in advance, the stock ignitions would work.

 

[3000 FPS]

Neat stuff! Had to go back one page to see what was happening, but found it. Those are hugemongous though, I was thinking two of the smaller poulans might still be handy enough to use. Interesting he used a clutch to combine them, I was thinking a common crank then work on the ignition system, proly with something off a twin cylinder motorcycle. Or I don't know, I guess if you really did your timing and stroke work in advance, the stock ignitions would work.

Use a coupler to attach the two together then set the timing up so that when one is at TDC the other one is at BDC.

 

[67 Mustang]

Here's what my Craftsman 5.2 looks like (I know it's not showroom clean YET .. )

Hopefully one of the gurus will be along to explain the tank vent setup ..

The tank vent is the fitting on the left in your pic. It requires a duck bill valve on the small tube that extends inside the tank. Most have long since disintegrated and need to be replaced. I have one now that the prior owner put a piece of small fuel line in the hole and extended it down inside the case. It vents the tank and keeps fuel from sloshing out the fitting.

 

[redunshee]

The tank vent is the fitting on the left in your pic. It requires a duck bill valve (part # 530026119) on the small tube that extends inside the tank. Most have long since disintegrated and need to be replaced. I have one now that the prior owner put a piece of small fuel line in the hole and extended it down inside the case. It vents the tank and keeps fuel from sloshing out the fitting.

Hmmmm. So there is only a duckbill valve on the inside of the fitting? Makes sense. I'll have to check my 4200 and 5200 as I'm sure they are gone. Thanks.
Bob

 

[XPLRN]

The tank vent is the fitting on the left in your pic. It requires a duck bill valve (part # 530026119) on the small tube that extends inside the tank. Most have long since disintegrated and need to be replaced. I have one now that the prior owner put a piece of small fuel line in the hole and extended it down inside the case. It vents the tank and keeps fuel from sloshing out the fitting.

Hmmmm. So there is only a duckbill valve on the inside of the fitting? Makes sense. I'll have to check my 4200 and 5200 as I'm sure they are gone. Thanks.
Bob

Well I opened the tank up for the first time to see what was inside of it. Found old rotten fuel line, the old filter and the fuel cap holder wire that didn't have anything attached to it. What did Poulan use originally to attach the fuel cap to the holder wire inside of the tank?? Just see a small washer on it like something was attached at one time!??

Here are a couple of filters, one from the 5200 and the other one from a Homelite 1050 project...........which one do you think came out of the 5200!???

Now speaking of venting.........here is the fitting in it's designed location;

Here is the fitting removed and cleaned up......sure a nicely machined fitting!! What I don't understand is why it has a straight, non-flared end where the Tygon fuel line would slide on!?? You would think a machined flare on the end of it to help retain the Tygon fuel line better!??? . Am I missing something or is the fitting missing something?? If I understand this correctly a piece of tygon goes on the smooth tube end and then the discussed "duckbill valve" goes on the other end and that provides the tank venting!?? Sooo as Mustang67 mentioned just a piece of small diameter tubing on the end of the fitting extended down inside the case might suffice or ???

 

[Eccentric]

That fitting doesn't take a length of fuel line. A duckbil valve slips onto the end of that fitting. It's the tank vent, and allows atmospheric pressure into the tank as fuel is drawn out. Fuel line passes from the carb on down through the hole to the right of the vent fitting into the tank. The OD of the fuel line sealed against the hole. Some fellows have tapped that hole for a fitting with barbs on both ends. In your pic, the Homelite filter is on the left and the Poulan filter is on the right.

 

[XPLRN]

It would be nice to see what a "duckbill valve" looks like!??

That fitting doesn't take a length of fuel line. A duckbil valve slips onto the end of that fitting. It's the tank vent, and allows atmospheric pressure into the tank as fuel is drawn out. Fuel line passes from the carb on down through the hole to the right of the vent fitting into the tank. The OD of the fuel line sealed against the hole. Some fellows have tapped that hole for a fitting with barbs on both ends. In your pic, the Homelite filter is on the left and the Poulan filter is on the right.

Soo what retains the duckbill valve onto the end of the fitting and is it made of plastic or metal?? Thanks for the explanation......... I'll throw some fresh gas into the 5200 tank and see what else loosens up........maybe the duckbill valve is stuck in one of the tank corners!??

You know your filters..........can I use the one I bought at the lawn and garden shop where I sourced my Tygon or is there something "special" about the 5200 filter?? I realize that the factory filter is weighted and haven't done a weight comparison of the two..........yet. Just curious what the filter I.D. give away was!?? That Homelite fuel tank was a mess but the filter sure didn't look near as bad and the 5200 one.

 

[sac]

Soo what retains the duckbill valve onto the end of the fitting and is it made of plastic or metal?? Thanks for the explanation......... I'll throw some fresh gas into the 5200 tank and see what else loosens up........maybe the duckbill valve is stuck in one of the tank corners!??

You know your filters..........can I use the one I bought at the lawn and garden shop where I sourced my Tygon or is there something "special" about the 5200 filter?? I realize that the factory filter is weighted and haven't done a weight comparison of the two..........yet. Just curious what the filter I.D. give away was!?? That Homelite fuel tank was a mess but the filter sure didn't look near as bad and the 5200 one.

The duckbill is made out of rubber and slides over the fitting on the left, and it looks like a duckbill.
If it has fallen off you need a new one.

Scott

 

[zogger]

Hmmmm. So there is only a duckbill valve on the inside of the fitting? Makes sense. I'll have to check my 4200 and 5200 as I'm sure they are gone. Thanks.
Bob

You can always scrounge old busted cheapo trimmers and look for tank grommets and duckbills there as well. Might take a little creative tank mods to make them work, but they are handy to everywhere sources.

 

[rms61moparman]

You know your filters..........can I use the one I bought at the lawn and garden shop where I sourced my Tygon or is there something "special" about the 5200 filter?? I realize that the factory filter is weighted and haven't done a weight comparison of the two..........yet. Just curious what the filter I.D. give away was!?? That Homelite fuel tank was a mess but the filter sure didn't look near as bad and the 5200 one.


There is something "special" about an original 5200 filter.
They have a check valve in them to keep the fuel from draining back down into the tank.
Most of the replacements don't have that feature and that is why it takes several pulls to draw fuel to the carb on a cold start.
The check valve filters are almost non-existant now to my knowledge, that is why I work diligently to save one if at all possible!!!
They really do work and work well.


Mike

 

[zogger]

Soo what retains the duckbill valve onto the end of the fitting and is it made of plastic or metal?? Thanks for the explanation......... I'll throw some fresh gas into the 5200 tank and see what else loosens up........maybe the duckbill valve is stuck in one of the tank corners!??

You know your filters..........can I use the one I bought at the lawn and garden shop where I sourced my Tygon or is there something "special" about the 5200 filter?? I realize that the factory filter is weighted and haven't done a weight comparison of the two..........yet. Just curious what the filter I.D. give away was!?? That Homelite fuel tank was a mess but the filter sure didn't look near as bad and the 5200 one.

If you want to add weight to a new cheapo plastic filter, just slide any old nut ya got handy over the line before you attach it to the filter.

 

[OhioGregg]

Soo what retains the duckbill valve onto the end of the fitting and is it made of plastic or metal?? Thanks for the explanation......... I'll throw some fresh gas into the 5200 tank and see what else loosens up........maybe the duckbill valve is stuck in one of the tank corners!??

This is the duckbill valve, last i new was still available from Poulan.

Gregg,

 

[67 Mustang]

Thanks, Gregg! I knew you had posted a pic on here before.

 

[OhioGregg]

XPLRN,
Here is a link to the proper air filter for your 4000 on Ebay. Sometimes it helps to use Poulan 375, 395 etc in your search too. The same filter.:smile2:

http://http://www.ebay.com/itm/NEW-POULAN-SEARS-AIR-FILTER-FITS-PP375-PP385-PP395-530025918-L-K-OEM-/160770445731?pt=LH_DefaultDomain_0&hash=item256eaa51a3


Gregg,

 

[OhioGregg]

Thanks, Gregg! I knew you had posted a pic on here before.

Hi Steve !!! How ya been? Havn't seen ya in here for some time. Been buying up more great old Poulans have ya? I still drool over that 7700 of yours. LOL That is about the sweetest Poulan I have ever run!


Gregg,

 

[OhioGregg]

OOOOPs... The link I posted above didn't work, now it does. had to fix it..



Gregg,