Block cut in half?

[fuzz401]

the 2 plugs above the cam and below the 2 oil run off holes(sloted)



with cam gear on the plugs can be seen through the cam gear



from the inside the drain holes

[caveman]

Hey, Thanks for the pics Fuzz. That helps a lot.
The drain hole shot (from the inside) shows the holes I am talking about. When spinning the pump, the oil rushes into the lifter valley through them, which I take, not to be normal.
Looking at the pics of the front, thru the timing gear, I take it that without the 2 plugs, the oil runs out of them into the timing chain cavity which fills up and and in turn runs into the drain holes, flooding the lifter valley. hence no pressure and no oil up to the lifters.
That sound about right?

[AMX69PHATTY]

Hey Fuzz401, is that a RollMaster Timing Set ?
I guess the Torrington Bearing doesn't starve the Dizzy Gear for Oil ?

Just for reference, I believe the the (6) 3/8 Pipe Plugs needed in the block are there to plug holes
that are used to give access to drill or ream the oil galley passages into the block during manufacture.

As they've said, they must be in place to seal up the oil galley passages to get pressure.
The stock pipe plugs have a square socket hole rather than a hex socket hole.
If a person wants the square socket hole 3/8 pipe plugs, they're hard to find,
but they are available from Au-Ve-Co, box of (10), Part # 16307, $5.95
It does sound like they've been left out of the front of the block.
They are usually taken out when they clean the block.
Be sure all (6) are installed, (2) front, (2) rear, (2) in valley at front wall on top.
Have heard of people using an EDM machine to put a very small hole
in the front ones to increase timing chain oiling.
There absence would explain not getting oil to the rockers, no pressure, and oil coming in the those front holes.

[FuzzFace2]

I thought there where 7 plugs?
1 smaller plug behind one of the front plugs, can’t remember if it was the left one or right one? If I can only find where I put “BJ Builds an AMC” book as I believe that is where I saw about it.
But it does sound like the front plugs are missing!
Dave ----

[fuzz401]

that could do it

[82Waggy]

I thought there where 7 plugs?
1 smaller plug behind one of the front plugs, can’t remember if it was the left one or right one? If I can only find where I put “BJ Builds an AMC” book as I believe that is where I saw about it.
But it does sound like the front plugs are missing!
Dave ----

The plug behind the front gallery plug described in BJ's book is a restrictor for the left oil gallery - not a stock component.

[caveman]

Dind! Ding! Ding!!! We have a winner. =D>
You guys rock. I pulled the timing cover and you were correct. Both plugs were left out. I took the ones out of my old 304 to use in the 360.
Now to get the gaskets and put her back together.
Thanks a million.

[FuzzFace2]

Thanks Waggy for clearing that up, still have not found that book
Caveman good to hear you found what the cause was.
That’s why we pre lube motor to find little things like that, remember when you do it again to pre lube then rotate 90* and do it again till you get oil out ALL push rods & rockers till back to TDC.
Good luck
Dave ----

[milnersXcoupe]

A cutaway AMC block is unique - could the person who has these .jpgs please post them - in large enough format so that they may be studied in detail > please < ?

[fuzz401]

what I used is the paint they use on elec motors on the inside to seal the windings and the inside of a lot of welders