Re: [Amc-list] 195.6 OHV Oil Supply (was "return") Line - just use a pre-cut brake line?

[Glen Hoag <hoag@xxxxxx>]

 From the 1965 American TSM:
"Intermittent lubrication to the valve train is controlled by 
metering the flow by volume through the front camshaft bearing.  This 
is accomplished by a  groove in the front camshaft journal which 
indexes the main oil supply to the camshaft bearing to a drilled 
passage at the right front of the crankcase.  From this external 
opening, the oil is routed through a fitting and tube assembly 
through the drilled passages in the cylinder head, front rocker arm 
support block and into the hollow rocker arm shaft (Fig. 48).

"Each rocker arm is drilled to convey oil to the flat machined 
surface on top, then to each push rod, valve stem and spring.

"Holes are provided in the cylinder head to return the oil to the 
tappet and push rod chamber where it lubricates the push rod seat of 
the valve tappets.  The oil in the push rod and tappet chamber drains 
back to he oil pan through openings in the cylinder block.

"CAUTION: When installing a new oil pump, or pump has been 
disassembled, the pump must be primed by removing relief valve 
plunger and filling pump with oil.  This must be done before starting engine."

Note that the intermittent valvetrain lubrication system is first 
documented in the 1964 TSM.  As Frank stated, it may have appeared 
first in 1963 production.  You can tell which you have by examining 
the passenger side of the block, near the front.  If there are two 
ports, you have this system.  The upper port is the oil supply for 
valvetrain lubrication, and must be connected to the lubrication port 
on the head.  The lower port is used to supply oil to the partial 
flow oil filter, if equipped.  With the full-flow oil pump, the lower 
port is not used, and a plug is installed.  Note that #1 cam bearings 
for this system have two holes; one is aligned with the hole in the 
main oil gallery passage to the front main bearing, while the second 
must be aligned with the valvetrain lubrication port.

If there is only one port (in the main oil gallery), a line was run 
to the port in the head, which was fitted with a tee to supply oil to 
the partial flow filter.  This can be replaced with an elbow for your 
application.

To summarize, there must always be a line from the block to the head 
port, as there are no internal passages to conduct oil to the 
head.  Use the upper block port if present.  The only change required 
to use the oil pump with the full-flow filter is to remove the 
partial flow filter and its plumbing (and plug the ports).

--Glen

At 12:02 PM 9/23/2008, Joe Fulton <piper_pa20@xxxxxxxxxxx> wrote:

>--- On Tue, 9/23/08, Tom Jennings <tomj@xxxxxxx> wrote:
>
> > But you'll need to feed oil to the rockers, right? Far
> > as I know,
> > there's no other way to get oil up there.
>
>You know, I may need to find a 1965 TSM that shows the lubrication 
>system for the 65-only 196.  I need to know how oil actually get to the head.
>
>Joe Fulton
>
>
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