Nik's Poulan Thread

[RedneckChainsawRepair]

Installed this aftermarket Piston , ran the saw 1 minute, it lost compression and stoped, Here is the result.

Maker or seller of the aftermarket. Been scared to try the lil red barns afm pistons myself.

 

[Beavers]

That's the one , L Red, Have you heard other bad or good reviews

 

[s sidewall]

I won't buy another one from them, my 3400 piston wasn't chrome plated among a few other issues with it.

Steve

 

[astnmacgto]

Dumb question but are all the 85cc countervibes open port?

 

[Acornhill]

Installed this aftermarket Piston , ran the saw 1 minute, it lost compression and stoped, Here is the result.

That sucks, I was really hoping for a different outcome

Sent from my LG-D800 using Tapatalk

 

[fossil]

Did a ring locating pin come out and go up the transfer?

 

[stubnail67]

Maker or seller of the aftermarket. Been scared to try the lil red barns afm pistons myself.

thats scary i was looking at their s25da and the micro 2300 ones from L-R-B maybe not.....

 

[fossil]

Dumb question but are all the 85cc countervibes open port?

Yes they are

 

[Beavers]

The alignment Pins are intact, wrist pin bearing and C clips also in place.

 

[Acornhill]

Let us know what LRB has to say

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[fossil]

The alignment Pins are intact, wrist pin bearing and C clips also in place.

What do you figure it was then? If that mark above the transfer in the cylinder is the line where the piston crunched something. Are the ring locating pins in the right spot so rings ends don't end up in the transfer?

 

[RedneckChainsawRepair]

I noticed looking at LRB 505 54mm afm piston they show in their pic. Look how short the skirts are. That just isnt right if you look at a oem 505 piston. Betting pin to top way short too.

I have a meteor I got from a member on trades on one of my NOS 475 piston. Just so I could look at it and the skirts were way short on it too. Evidently they dont no how to copy a piston to specs IMHO. Pin to top height was way to short too. Scares me, buyers beware.

Pull pic from our 475 thread.

 

[fossil]

Makes you wonder how many saws they've messed up so far.

 

[Beavers]

Maybe l am wrong or not seeing something but the measurements here are same. Notice the Bump on crown of piston top. would indicate the failure occurred on down stroke.
The cyl damage is strange , you can feel a little indent with your finger on it. and its shape is perfectly rectangular.

 

[s sidewall]

Is that a pin hole in the side of the piston above the top compression ring?

Steve

 

[Acornhill]

Maker or seller of the aftermarket. Been scared to try the lil red barns afm pistons myself.

are you sure you did not have something

Maybe l am wrong or not seeing something but the measurements here are same. Notice the Bump on crown of piston top. would indicate the failure occurred on down stroke.
The cyl damage is strange , you can feel a little indent with your finger on it. and its shape is perfectly rectangular.

are you sure that there was not a foreign object in the cylinder when you put it together the 2nd time? everything else still looks intact.

 

[ANewSawyer]

So am I banned from the Poulan thread for buying a PP5020AV?

Seriously, sorry about the saw. I hope it gets sorted out.

 

[s sidewall]

You got what? Banned?

Steve

 

[Beavers]

Is that a pin hole in the side of the piston above the top compression ring?

Steve

That is no Pin Hole, the metal has been forced up creating the Bump their.

 

[s sidewall]

The seconded picture, when enlarged looks like a pin hole, not at the damage area.

Steve