Aftermarket air filter failure

[Opelman]

This came in on a big Toro zero turn with Kohler power. The machine looked almost identical to an Exmark. Inner air filter element failed and started crumbling. Outer filter element was intact but dirty. Machine was in for a misfire due to a failed coil.

 

[WobblyElvis]

Somethings you should only use OEM.

 

[Brian123]

This came in on a big Toro zero turn with Kohler power. The machine looked almost identical to an Exmark. Inner air filter element failed and started crumbling. Outer filter element was intact but dirty. Machine was in for a misfire due to a failed coil.

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View attachment 293542

1 Question is, how long or how many hours was this air filter on this Mower?
The other question I have is, after each mowing was this Machine Blown Off?
Another question I have since this Engine is in the Rear, what oil and what weight of oil was being used? Was the oil level checked before each use?

I will go on a tangent and say that mowers with rear mounted engines run hotter than mowers with front mounted engines, kind of the reason Kohler teamed up with Amsoil and did a 10W-50

You stated that the Outer part of the Air Filter was dirty, 9 out of 10 times when there is an issue like you have stated it is the operators fault.

 

[TheOilWizard]

Any idea what brand it is?

Without knowing that, it's very difficult to make a judgement.

Some aftermarket filters are better than OEM. If someone is using a no-name brand, well...

 

[Opelman]

Horizontal crank Kohler. I don't remember the hours. Air filter is a commercial cannister type with 2 seperate elements one inside the other mounted above the engine behind the operators seat. The machine was not abused like some we see. Outer filter was a Napa Gold. At least it hadn't failed and dusted the inner filter. The owner does his own maintenance so we don't have service records on the machine. Quite possibly the inner was not changed for some time, only the outer. It left with 2 new style coils, 2 new air filters and a new o ring on one of the hydraulic line fittings.