Thoughts on using optional pre-cleaner

16 years ago

Have a 1.5 y/o Lawnboy with a 675 series Briggs & Stratton ready start engine.

When shopping for a replacement air filter (part# 491588 or 491588S - not sure what the 'S' is for), I noticed a pre-cleaner for the air filter, which is essentially an oil soaked foam square.

My lawn mower did not originally come with a pre-cleaner filter, so I'm assuming it's not necessary, however I'm interested to know what the benefits are and is it worth the extra 5-6 bucks.

P.S. - also noticed that "DO NOT OIL" is written on the foam pre-cleaner. I'm guessing this is not a reusable item where it can be washed and re-oiled...

Links -

Filter:

http://www.amazon.com/Briggs-Stratton-491588S-Filter-Cartridge/dp/B0011WP4Q6/ref=pd_sim_ol_1

Pre-cleaner:

http://www.amazon.com/Briggs-Stratton-493537S-Filter-Pre-Cleaner/dp/B002E3GGAO/ref=pd_sbs_ol_6

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Comments (4)

rosemallow
16 years ago
I use the pre-cleaner on all my Briggs and Honda Equipment.
Dusty conditions can dirty a new cleaner quick.
My answer is YES!
tomplum
16 years ago
Traditionally the precleaner is used in real dusty environments- such as tillers, certain rear baggers etc. but is OK to use anyways. You can wash the and re-use the foam PF btw. In addition, only the horizontal shaft engines would you re-oil the PF.
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ljbrandt
Original Author
16 years ago
Great. I think I'll go out and purchase one! Especially since it seems that every time I pull out the paper filter after mulch mowing, a good bit of dust comes out after tapping it.

Couldn't find any info from Briggs on washing the pre-cleaner...just regular soap and water, just water or something else to clean it? And I guess no oil (not sure if a 675 series is horizontal or not)...just let it dry and put back in? Thanks
1saxman
16 years ago
Push mowers have vertical-shaft engines. The term is confusing when the word 'shaft' is omitted because most consider a mower engine 'horizontal' because the cylinder is, but the term applies only to the crankshaft orientation. So, a tiller, for example, would have a horizontal shaft and a vertical cylinder (in most cases).