i am pretty new to land rovers and am in the process of putting a 109 series 3 back on the road after years of neglect. most of the mechanics are very basic and self explanitory but was just wondering why the air filter is oil filled and are there any reasons for not just sticking a modern filter box and cartridge filter on it as i have never come across this form of filter before
airfilter query
- Thread starter trunkneck
- Start date
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Disco Inferno
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I see no reason why you cant just stick an air box with a paper filter in it onto your landy but why not just stick with what works rather than making more work for yourself? Also no air filter to buy! Change your engine oil and oil filter then empty your air box and top it up with engine oil. Simple
Oil bath filters are quite efficient, and were very common in the olden days.
The air passes down through a wire mesh and over the oil bath which splashes oil up into the mesh, trapping dirt, which works its way down into the bath of oil where it should sink ..... the oil gets pretty dirty in dusty climates, and the advantage is that renewing the filter is only a matter of cleaning it, and tipping in a pint of engine oil.
So called air FILTERS are primarily intake air SILENCERS. There's a LOT of noise comes out of an air intake, especially diesel engines because there is no throttle - the intake is wide open all the time. My first car had no air filter or silencer. Ford Popular 1172 sidevalve. It was a noisy thing. As people got more fussy about creature comforts, they wanted extras like ... a heater, and a lot less noise. Also, engines needed re-bored several times in the life of a car, which was great for the motor trade. Adding air silencers and air cleaners probably doubled the average live of an engine's bores.
Modern motoring almost never require a rebore, or de-cokes and grinding-in valves. Those were routine jobs in the old days. I can still do it.
CharlesY
The air passes down through a wire mesh and over the oil bath which splashes oil up into the mesh, trapping dirt, which works its way down into the bath of oil where it should sink ..... the oil gets pretty dirty in dusty climates, and the advantage is that renewing the filter is only a matter of cleaning it, and tipping in a pint of engine oil.
So called air FILTERS are primarily intake air SILENCERS. There's a LOT of noise comes out of an air intake, especially diesel engines because there is no throttle - the intake is wide open all the time. My first car had no air filter or silencer. Ford Popular 1172 sidevalve. It was a noisy thing. As people got more fussy about creature comforts, they wanted extras like ... a heater, and a lot less noise. Also, engines needed re-bored several times in the life of a car, which was great for the motor trade. Adding air silencers and air cleaners probably doubled the average live of an engine's bores.
Modern motoring almost never require a rebore, or de-cokes and grinding-in valves. Those were routine jobs in the old days. I can still do it.
CharlesY
crossa
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Thanks CharlesY after that little explanation I think I will also keep mine, as I was thinking of swapping it as well.
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CharlesY, I can still do it too. Just fitted new valve guides/seals and ground valves in on a Transit 2.5 head. Does this mean we are old dinosaurs?
YUP!
Kids nowadays just buy a complete cylinder head.
More fun our way, and a tad less costly too!
CharlesY
