12-01-2022, 06:55 PM
Hi Jon,
The restrictor is used on pressure fed engines to force more oil into the crankshaft.
You can tap the gallery and scew a plug with a suitable hole to slow the flow down.
( I have just got a drilled brass plug knocked into place )
O rings are fitted to the outside of the front bearing to stop oil passing around the outside of the bush.
I have couple of front bushes from a standard engine that have track marks from oil scouring the bush and crankcase.
If you are running a standard engine there is plenty of oil flow for everything at normal speeds.
I run my engine at 6500 rpm and more in third gear when pushing on.
My cold oil pressure is set at 70 psi at 1000 RPM, hot oil pressure at 1000 RPM is 28 psi.
The restrictor is used on pressure fed engines to force more oil into the crankshaft.
You can tap the gallery and scew a plug with a suitable hole to slow the flow down.
( I have just got a drilled brass plug knocked into place )
O rings are fitted to the outside of the front bearing to stop oil passing around the outside of the bush.
I have couple of front bushes from a standard engine that have track marks from oil scouring the bush and crankcase.
If you are running a standard engine there is plenty of oil flow for everything at normal speeds.
I run my engine at 6500 rpm and more in third gear when pushing on.
My cold oil pressure is set at 70 psi at 1000 RPM, hot oil pressure at 1000 RPM is 28 psi.