It works its way down in there after a few runs. Mainly on the DZ engines this is an issue. The 110 has the fuel air mixture going through the bottom end of the engine and this helps lubricate it.

THE DZ engines are different. They only get fuel directly to the intake valve. So any oil that gets down below must work its way through the various passages and past numerous road blocks. Example, the DZ engines must get lube to the cam gear area. This can come a couple different ways. First it blows by the piston ring, then it has to work up past the crank shaft ring, then through the rear bearing, and into the cam area.

Another path is from the top down. It flows down the push rod tubes, and must get past the cam followers. These followers have tiny little holes in them to allow oil to pass. The holes are very small.

next option is the tubing that connects the lower end of the case to the fuel pump. This again is only on DZ engines. This line is for pressure to the pump, but some oil will drip down through this fuel tubing and get into the area.

These methods to lube the cam are effective if the engine is running, but let it be dry it might take a couple minutes of running metal to metal before it gets any good lube right?


Troy