As Lloyd said check the oil pressure switch on top of the filter, I had the same symptom’s on mine,changed the switch and no more issues.
clean the oil up, then use an engine cleaner like gunk, spray on leave it then use an old tooth brush to clean all the awkward bits, i used an old electric one perfect.
Last edited by slippy8v on 28 Sep 2015, 19:37, edited 3 times in total.
1967 RHD WALKTHROUGH SPLITSCREEN
1971 RHD BAY
1993 MK1 GTI CABBY RIVAGE
1989 T25 KOMET
1991 T25 SYNCRO PANEL VAN
Worth checking that the oil cooler is tight enough. Although it is sandwiched between the oil filter and the block they are held on by a nut which goes on before the oil filter. Mine had worked loose and was causing a leak.