advinne
New member
Hi all this is my first post so please be kind. Right i have a 1969 1500 vw beetle which had no oil pressure problems. Then i turned it into a 1600 twin port i have change the fan shroud and put in the larger cooling fan and replaced the single port oil cooler with a twin port cooler. But now after about ten minutes on tick over the oil pressure light comes on but if i increase the idle the light goes out but only for a few minutes then it comes back on and so on. But if i rev the engine the light goes off. the light only comes on at tick over not at any other engine speed. so far i have removed the oil pump reconditioned it and replaced it ive also replaced the oil pressure switch and the oil relief pressure spring and piston ( the replacement pressure spring is a high pressure spring to increase oil pressure) but nothing has help. The oil is not overheating and thinning out so i know the cooling system is working this problem has nothing to do with the oil getting to hot. The oil im using is part synthetic 15w/40 is this right please help many thanks advinnie