Small petrol engine air cleaner

Garden Pond filter foam?

Available in sheets and various shaped bits of varying densities

However Briggs and Stratton 3.5 and Tecumseh engines fitted to many small modern garden machines also use foam filters I suppose it depends on the size and shape of the old one

Tony

In article , robgraham writes

Try the maintenance guy/dept in a friendly hire shop, they're bound to have these turn over quite quickly and likely to have a roll of the stuff. Personal contact likely to succeed over a phone call.

Alternatively, local (again friendly) motorbike shops or garden tool suppliers for bodgable filters.

Anything that looks vaguely like open-cell foam. They're just not fussy.

_Unless_ it's something like a recent B&S engine that has an airflow controlled flapper to work the choke. These can get fussy about the pressure drop being in the right range, so they care just a bit more about using approximately the right density. You might have to adjust thickness to get it to start easily.

OTOH, I'd rather use a pleated paper filter than foam. They're easier to blow clean when full of grass clippings or hayseeds. I make mine by carving up a big old truck air cleaner -- it's a huge thing in a too- tight airbox and only half of it sees any airflow or gets filthy. I doubt a cultivator is going to be too accurately carburated anyway, so just recycle the next one off your car and use the cleanest bit.

================================ Get a kitchen pan scrub (metal wire type), soak it in engine oil and allow to drain. This is an old motor cycle version of air filter. You may need more than one to fill the filter body. Periodically, wash clean in petrol and re-use.

Cic.

What I have seen on engined tools in commercial use: remove the original filter, replace with a yard of flexible plastic pipe, and fit a largish filter at the end. The new filter goes up by the handle, well away from dirt, grass clippings and dust.

Thomas Prufer

Thanks a lot guys - this is all very basic, small garden use at this time of year predominantly when there isn't much dust around anyway. Lots of good ideas, but I like the kitchen scourer one for the moment.

On the subject of such objects, I was shown a trick a lot of years ago when my car radiator got punctured. The flow was such that Radweld, etc would have just passed straight out - the guy in the garage plugged the hole with a bit of pot scourer such that the flow was just a seep and then added the Radweld. Sold the car sometime later without ever losing another drop of coolant.

Rob

I was just giving you a good reason to explain why you bodged a truck air cleaner from the shed onto the small basic engine, using a bit of Dyson tubing from the skip:-)

Thomas Prufer