Guest anton1 Posted May 24, 2010 Share Posted May 24, 2010 Hello everyone...after finally MOT'ing, insuring and taxing I took my mk4 3i cab for a 40ish mile run and on returning home I suddenly have a pretty bad leak which wasn't there before? On quick inspection it doesn't seem to be coming from anywhere on the engine but around the gearbox and the area on the nearside is covered in oil... What is the likely source? I think I will clean everywhere up first and see if I can detect where it's coming from but thought I'd ask to see if there's any likely areas to check first. Oh and just to add...the gearchange was becoming quite difficult! Thanks in advance for any help... Quote Link to comment Share on other sites More sharing options...
Admin Paul Posted May 24, 2010 Admin Share Posted May 24, 2010 Is it gearbox oil or engine oil? Quote Link to comment Share on other sites More sharing options...
Guest anton1 Posted May 24, 2010 Share Posted May 24, 2010 Is it gearbox oil or engine oil? It's hard to tell to be honest? Is there any way to easily distinguish the two as I thought if the gearbox oil was old anyway that it would look like engine oil? I would say it had the appearance of engine oil? Quote Link to comment Share on other sites More sharing options...
Admin Paul Posted May 24, 2010 Admin Share Posted May 24, 2010 Just smell it, if it smells of cat pi** then gearbox oil. If its engine oil then not leaking from the gearbox but from the engine Quote Link to comment Share on other sites More sharing options...
gingergman Posted May 24, 2010 Share Posted May 24, 2010 gearbox oil stinks! give it a sniff lol Quote Link to comment Share on other sites More sharing options...
Guest anton1 Posted May 25, 2010 Share Posted May 25, 2010 Well I got home and put her on the ramps to have a look...wiped everything and seemed to be coming from above the gearbox and on further investigation found what was happening. Somehow there's oil coming from the rocker cover breather hose into the air box, through the brand new filter! and then dripping through the base of the air box as there's a hole been drilled in it. Then it's dripping onto the gearbox and driveshafts and spraying everywhere! Never would have expected this! Does anyone know why the oil is leaving the rocker like this????? Quote Link to comment Share on other sites More sharing options...
RobMk4TwinCarb Posted May 25, 2010 Share Posted May 25, 2010 Mine hoons oil out of the breather, but on the opposite side of the bay as it's efi. I guess it's fumes coming from the crankcase breather into the rocker and then out of the filter..only a guess and no idea of cause. Quote Link to comment Share on other sites More sharing options...
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