Priming pump Hamilton Cams
From their website:
How should I break in my new camshaft
The first 5 minutes of operation of your new camshaft is very important. Ninety percent of all issues arise in this period and have to do with inadequate lubrication.
To make sure that you have no issues during break-in, follow these few suggestions.
– Make sure that the cam has a Liberal amount of quality assembly lube applied
-DO NOT let the engine start without oil pressure
– When this is a new engine, be sure to put a liberal amount of assembly lube in the oil pump and prime the oil filter
– Be sure to change the oil after you have done your break-in procedure. When the filter and oil system are already primed, engine will get oil pressure much faster than if the oil is changed at the same time.
-Disconnect the fuel system and spin the engine with the starter until oil pressure can be read or until oil is coming out of the rocker arms.
-Do not let the starter run for more than 10 seconds at a time
– Once oil pressure has been verified, let the engine start and run for five minutes at 1200-1500rpm then shut engine down
-Adjust valves then you are cleared to abuse your engine. Enjoy the added airflow
-if you need to re-torque or “hot-torque “the head, do so before adjusting valves. Re-torqueing the head changes the valve lash setting, so it is important to set lash last.
2-3 times a year I get calls from customers that have lash starting to get loose on the last 3 cylinders. This is caused from poor lubrication at the time of initial start-up. In this case the cam literally eats its way through the block away from the force of the tappets. Assembly lube and oil pressure on start-up are a pretty big deal to your cam. Don’t let this happen to you.