Talk Morgan Forums Morgan Sports Cars Maintenance & Servicing K&N, ITG Filters and effecting MAF Sensor

Interesting comment I picked up from the Mini2 forum (I have an early BMW Cooper S)

"but remember not to over-oil the filter as it can affect / ruin the MAF sensor"

Never thought of that but certainly worth remembering.

I regularly clean mine as part of annual service and certainly makes a difference. (I use aerosol switch cleaner from Maplins - CAREFULLY!)

According to an AA man who attended a mate's Plus 8 a couple of years back, dirty MAF sensors are a very frequent cause of call-outs. You can get specialised cleaning spray from Amazon.

Oh heck, something else I need to watch out for...

All the available data suggest that the ITG does the best job- although if you want to use one of their very nice carbon fibre boxes they are a b*gger to fit under a Mog bonnet in any position which doesn't involve exposure to a heat source or an overly- long travel from the pick up point.
As to the 'oiling' I'm pretty sure we have an earlier thread on TM where several f us banged on endlessly about the problems of over-oiling and the fact it can send the MAF sensor crazy
There used to be an excellent guy at ITG- Andy Jackson who was really switched on and happy to give advice but I've had no contact with him for a little while, so he may have moved on

I have a K&N panel filter and it doesn't need oiling, just hoovering!

Any filter that requires oiling is not a good idea, at least on road cars. The whole idea of sports airfilters is to allow a free air flow. Oiled filters work reasonably well when clean, and freshly oiled to the correct degree using the correct oil, but the oil catches the dirt (as it should) and they quickly loose efficiency. Fine if you are racing and clean and prepare it before every race meeting but not so good on the open road.

There are several types of high flow airfilters that use cleanable elements, usually washeable in warm soapy water, that are much better suited to road use.

I have no idea what is available in the UK.

The better type of road filters such as K and N ITG, Green, BMC are generally all foam filters which need an oil based spray to enhance their performance to to the maximum.
I'm not taking about oil bath filters here but as I said, foam filters which need a light oiling or spraying ( I'm not even going to mention paper element filters as their shortcomings are well documented) All research shows they are infinitely preferable to paper elements and indeed cotton
It is also the case that such filters should be washed a re-oiled at appropriate intervals

One last point if I may, the whole idea of a filter is to allow CLEAN air flow. I know this is further back than many TMers will remember, but anyone who can recall what running without air filters did to the heads of the works Hillman IMPs in the 60s and 70s will never forget that lesson!
G

I have a preference for Uni filters, but I guess most modern foam/oil filters are much better than dry paper filters (especially if you're one of the guys wanting a front-open filter on the M3W - Yikes!).

Don't worry Graham. You don't have to look out for it, the car will tell you. It will give you an OBD code P0102. A quick spray with cleaner, reset the fault code, and off you go.

All you need is a cheap code reader. Mine was around 40 quid IIRC

Cheers Tim.
More computer stuff! Just need to find out what connector is in the 'early' car...

Now, going back to K&N, ITG etc. is there a filter that will fit in the standard (small bucket shaped) housing on a '93 4/4 (looking at various web sites I guess it's a MY 2004)?