Rocker shaft oil irritation

[4thwheel]

My rebuilt 2F is still on the stand today. I was planning on stuffin it in the 40 but while priming it with oil using the trusty drill in the oil pump method , I discovered only a very small amount of oil through the rocker shaft and tappets.

I know about the head gasket reversal...mines fine...I get oil through the cylinder head with the rocker assy removed.

I know about lining up the oil holes on the rocker shaft stands...the bolts slide in no problem...

What am I missing? How much oil should be coming out of the individual rocker oiler holes...

I get a spurt then nothing much....

My drill runs at around 450rpms...that should equate to a small but steady stream on each rocker right?

I know there are other related threads here relating to no oil or wrenches who put the gasket in backasswards...

Anyone else have similar problem...BTW new oil pump, cam bearings, pistons/rings main/rod bearings etc.

 

[RockDoc]

The oil has to pass through crankshaft and camshaft journals before reaching the head, do you have the rotating parts lined up?

https://forum.ih8mud.com/40-55-series-tech/280863-new-engine-oiling-runnning.html

 

[Poser]

My rebuilt 2F is still on the stand today. I was planning on stuffin it in the 40 but while priming it with oil using the trusty drill in the oil pump method , I discovered only a very small amount of oil through the rocker shaft and tappets.

I know about the head gasket reversal...mines fine...I get oil through the cylinder head with the rocker assy removed.

I know about lining up the oil holes on the rocker shaft stands...the bolts slide in no problem...

What am I missing? How much oil should be coming out of the individual rocker oiler holes...

I get a spurt then nothing much....

My drill runs at around 450rpms...that should equate to a small but steady stream on each rocker right?

I know there are other related threads here relating to no oil or wrenches who put the gasket in backasswards...

Anyone else have similar problem...BTW new oil pump, cam bearings, pistons/rings main/rod bearings etc.

Install the engine, leave the rocker cover off and run it. If you are getting a little oil to the top from your drill motor and not rotating the engine, you will be fine when the engine is running, and the camshaft is rotating, allowing oil to flow to the top end.

 

[4thwheel]

Rocker oil irritation solved????

TDC alignment lets oil to the head thru the cam and crank eh?
I actually did have a helper turn the crank bit by bit and still really never had much oil upstairs, but when removing the rocker assy. I did get a nice "riser" of oil through the cyl head hole...

Unless anyone else is a skeptic, I will move on to the install and troubleshoot from there

Thanks to all you kids who know what to look for!!!!

 

[Poser]

TDC alignment lets oil to the head thru the cam and crank eh?
I actually did have a helper turn the crank bit by bit and still really never had much oil upstairs, but when removing the rocker assy. I did get a nice "riser" of oil through the cyl head hole...

Unless anyone else is a skeptic, I will move on to the install and troubleshoot from there

Thanks to all you kids who know what to look for!!!!

The metered flow of oil to the cylinder head of the internally oiled F/2F engine is accomplished though two holes that are drilled through the number three camshaft-bearing journal. The pressurized engine oil that is at that cam bearing is permitted to flow for the instant that those holes line up, to a hole on the upper side of the cam bearing bore in the engine block, where it travels vertically to the top of the engine block.



When the oil reaches the top of the engine block, it is allowed to fill in a small area around a head bolt. When you assembled your engine, you should have noticed that all of your head bolts are a reduced shank fastener. This reduced shank allows the engine oil to travel up around the head bolt to a passage that is cross-drilled from the right side of the cylinder head, to the area below the rocker stand, where it is then directed to the rocker shaft assembly and to all the rocker arms and valves on the top end of the engine.



Install the engine, start it up and run it with the rocker cover off to verify that you do in fact have oil to the rocker shaft/arms. Oil will not spray everywhere, even at 2K RPMs.

 

[4thwheel]

Thanks Poser

Awsome explanation...

Moving fwd with the install over the weekend

 

[vk7ybi]

Youll be fine.. I couldnt make oil come to the top, even with the rocker gear out.. When the engine went into the 40, I cranked it on the starter with no spark plugs in, still nothing.. Decided to just start it and oil came up within seconds.. Its only a dribble out of each rocker arm.. With the air from the fan at higher RPM youll get a bit of spray, but nothing that cant be fixed with degreaser and a pressure washer..