14-10-2018, 12:45 PM
The oil comes along the gallery in the crankcase and feeds the oil jets. It then carries on across the front of the crankcase to the front camshaft bearing bronze bush. It feeds the bush and there are slots on the back of the camshaft gear/front of the bush to feed oil onto the gears.
The feed hole in the bush can get blocked which starves the bush & gears of oil.
Usually the feed to the front bush is excessive so there should be plenty of oil. It is a common practice to reduce the size of the feed hole on the bush and also the bush at the back of the camshaft. This raises oil pressure a bit as well.
The feed hole in the bush can get blocked which starves the bush & gears of oil.
Usually the feed to the front bush is excessive so there should be plenty of oil. It is a common practice to reduce the size of the feed hole on the bush and also the bush at the back of the camshaft. This raises oil pressure a bit as well.
Jim