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Original Comment Regarding Poulan P3314 chainsaws and others.<br /> <br /> There is an internal manufacturing flaw in some Poulan engines that is causing the internal destruction of these engines. However it seems to be going unnoticed because it has the same appearance as damage caused by improper fuel mix or overheating and the diagnoses stops there.<br /> <br /> <br /> <br /> The defect is this: The crankshaft assembly &quot;shafts&quot; and others) which are pressed into the counter weights are allowed to protrude past the face of the counterweight into the connecting rod space. The newer style forged connecting rods (not the earlier narrow rods) are wide enough to interfere with the protruding shaft ends. The rod end wears against the edge of the shaft end and actual steel slivers and bits are released inside the crankcase. It looks like the damage done by overheating, fuel/oil mixture issues, or carbon scoring. The problem is being misidentified and in some cases not warrantied and the customer is without recourse. <br /> <br /> <br /> <br /> Once I discovered this, after seeing steel metal shavings in the crankcase and locating the source, I've since identified this as being the actual cause of failure in at least five P3314 saws.<br /> <br /> <br /> <br /> My local Poulan services were no help and &quot;lost&quot; a sample crankshaft I left with them after seeing and acknowledging the problem. They regard them as throw away saws and not worth their trouble to deal with.

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