Cleaning an air filter

[Soundguy]

I like that. If the vac has a blow port attachment, ducting that to the inside would enhance the effect.
larry

i don't think i'd trust the crappy dust filter int he shop vac to do that..

 

[SPYDERLK]

i don't think i'd trust the crappy dust filter int he shop vac to do that..

Good point. An alternate hi volume source then. The leaf blower, mentioned early, would do.

 

[Gary Fowler]

Good point. An alternate hi volume source then. The leaf blower, mentioned early, would do.

Someone mentioned a leaf blower in an earlier post. I tried it last time I cleaned my filter and couldnt get any dust to blow out using the leaf blower. I guess just too much area to get the flow needed. Soundguy and I were thinking alike. I wouldnt trust the vacuum filter to do a good job of removing any dust enough to put the outtake on the inside of the filter. You would for sure be dirtying up the inside. I will continue with my bump method and lightly blowing out with compressed air on the primary filter. I dont ever remove the secondary filter as long as it is clean and white which to date has always been the case.

 

[Johnp33]

Personally I would never use compressed air to clean a filter, I rotate it about 2 inches from the flat floor dropping it, it jars the dirt loose on the pre cleaner element, Washing out the housing and the sealing surface is VERY VERY important. I have seen engines dusted because the element is removed and installed, to inspect it and push up a pile of dirt causing the seal to be bypassed.
Using a white soapy cloth on the intake tube, is the very best way to tell if their is any dirt bypassing or going threw the filter. Their is no allowable amount of dust that by passes a filter when dust gets into the cylinder it sticks to the oil on the cylinder walls and turns to lapping compound when the rings rub on it.