Author Topic: Poulan micro XXV  (Read 527 times)

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Offline countryhog

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Poulan micro XXV
« on: July 30, 2014, 11:03:06 pm »
 


Just rebuilt a Micro XXV with newer p&c and seals and cleaned out the oiler check valve, replaced oil line, replaced foam oil filter, and made gaskets for the oiler. Also had to fool with the crank/rod needle bearings as they had and executed an escape plan. Let's just say there wont be any skeeters around. I'm guessing it's burning bar oil.  Or, could it be the oiler check valve? Need some help here. Per the SM there is no gasket between the case halves.  First thought it was the grease I used to hold the bearings in place but after a few mintes decided that's probly not it.
now is never here but the past is always present.
semper fi ya'll

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Offline 660magnum

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Re: Poulan micro XXV
« Reply #1 on: July 30, 2014, 11:29:01 pm »
Look at the check valve

Bar oil smokes an awful lot.
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That knowledge can live after us... and that "Pays It Forward".
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Offline 3000 FPS

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Re: Poulan micro XXV
« Reply #2 on: July 31, 2014, 01:11:11 am »
I believe the oiler works off of impulses going into the oil tank and the check valve is there to prevent oil from going back into the crank case.

Stubnail67 has a bunch of these saws, maybe he has some more info.
PP 505, 475, 445.

Offline stubnail67

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Re: Poulan micro XXV
« Reply #3 on: July 31, 2014, 01:37:33 am »
i vote bad check valve also......if some one could rebuild these you could make some money......they used to cost 4 bux i seen them sell for 20 NOS...

Offline stubnail67

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Re: Poulan micro XXV
« Reply #4 on: July 31, 2014, 01:39:25 am »
make sure the oil line is still connected also.....

Offline stubnail67

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Re: Poulan micro XXV
« Reply #5 on: July 31, 2014, 01:49:20 am »
when you say you cleaned the check valve whats that mean?there is supposed to be a duck bill in the check valve.........if a bunch of black gunk come out????if so i would think its that.....those symptoms are usually broken oil line or check valve shot,,,,

Offline 3000 FPS

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Re: Poulan micro XXV
« Reply #6 on: July 31, 2014, 01:51:28 am »
I forgot about the duck bill.   Thanks Stubnail.
PP 505, 475, 445.

Offline countryhog

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Re: Poulan micro XXV
« Reply #7 on: July 31, 2014, 03:40:44 pm »
I sprayed it with some brake cleaner cause I didn't have any carb cleaner. Guess I probly melted the check valve. Gotta go dig through my pile now. Got an idea from acornhill on AS bout how to fix it. Gonna try and see. Btw which direction does the duckbill point-to the screen or away? Thanks yall
now is never here but the past is always present.
semper fi ya'll

Offline Eccentric

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Re: Poulan micro XXV
« Reply #8 on: August 01, 2014, 09:36:01 pm »
Yeah Jerry both carb cleaner and brake cleaner are NOT what you want to clean those duckbills with.  It was probably decaying already............but you likely finished it off....
-Aaron

For older saws:
Tune the H side so that it 4-strokes (burbles) at WOT unloaded and just cleans up when under load.
When you lift cutting load, the saw should immediately revert to 4-stroking.  Fine tune the transition point for the wood you're cutting.

Offline Cut4fun .

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Re: Poulan micro XXV
« Reply #9 on: August 01, 2014, 09:44:28 pm »
I sprayed it with some brake cleaner cause I didn't have any carb cleaner. Guess I probly melted the check valve. Gotta go dig through my pile now. Got an idea from acornhill on AS bout how to fix it. Gonna try and see. Btw which direction does the duckbill point-to the screen or away? Thanks yall

Didnt see this post.

Tim posted this on SH where we all were talking.

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