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oil filter?


sleeper's Avatar
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03-19-02, 02:59 PM   #1  
sleeper
oil filter?

how come some lawnmowers donthave oil filters even though they use oil?

 
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03-19-02, 05:29 PM   #2  
Most lawn mowerr and riding lawn tractors don't have oil filters.
With regular oil changes they don't need oil filters.
fred

 
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03-19-02, 11:01 PM   #3  
The mowers that have filters have oil pumps to circulate oil through the system, which costs more to manufacture. Engines that don't have pumps have no way to circulate oil through a filter, so it is un-needed. Engines without pumps have oil slingers, which dip oil from the bottom of the crankcase and sling it around inside the engine to lubricate the system.


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03-20-02, 06:22 PM   #4  
sleeper
ok thanks

 
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03-25-02, 10:22 AM   #5  
Joe_F
Also the volume of engine oil needed/used in a small engine would fill most car oil filters .

Most small engines under say 5hp use about 20oz of oil. That would easily be consumed by even the small PF47 Delco filter that's used on my car .

 
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03-26-02, 08:42 PM   #6  
Some small engines in the push mower category use oil filters...Kawasaki usually does for one, but they use very small filters. I doubt they hold more than 5 or 6 oz. of oil. The bigger engines like found on riding mowers use larger filters, similar to some small car filters.


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