altval Posted February 20, 2002 Share Posted February 20, 2002 Hi guys.Have been told there is a mod that must be done to the crank breather in the cam cover.Any ideas??? Also,any thoughts on catch tanks etc. cheers. Quote Link to comment Share on other sites More sharing options...
windy Posted February 20, 2002 Share Posted February 20, 2002 Yes. In order to stop the engine depositing its oil at anything above a sustained 6000 rpm you will need to remove the cam cover from the head to carry out the modification. Turn it upside down and you will see a steel plate bolted to the upper surface. At high engine speed a pressure build up in the crankcase forces oil up into the camshaft cover cavity (from the big diameter pipe / hose that houses the dipstick) and out through the breather holes. Remove the cam cover and cut 90% of the steel plate away leaving a small bit to cover the oil sprayed from the inlet cam where the two holes (one large one small) come out for the breather. The idea is that any oil splashed from the cam doesn't escape via the breather holes. The plate you are left with can be re-secured with just 2 of the original bolts. Be very careful to clean away all the silicon sealant from the camshaft cover otherwise contamination in the sump can have disasterous consequences (i.e. block oilways). The little plate should be resealed to the head with some fresh RTV sealant (obtainable from any good motor factors) to stop it vibrating loose. Regards Windy Quote Link to comment Share on other sites More sharing options...
altval Posted February 24, 2002 Author Share Posted February 24, 2002 Windy.Many thanks for info.Thought i had replied but can't see it anywhere. Cheers anyway. Quote Link to comment Share on other sites More sharing options...
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