In a message dated 7/3/2006 1:04:47 PM Pacific Standard Time,
tr3driver@comcast.net writes:
I agree entirely with Michael; but wanted to add one more often-overlooked
problem. Because of the deliberately low flow rate and pressure through the
rocker lube system, it is particularly apt to fill with sludge and fail to
lube
the front rockers. It only takes a few minutes to check for this when
setting
the valves ... just start the engine and let it idle for a few minutes with
the
rocker cover off. You should see oil flow through the front rocker by then;
if
not, it's time to clean out the rocker shaft.
I've also not seen anyone mention the increased clearance required with the
phosphor-bronze valve guides that seem to be so popular. More clearance
means
more leakage past the stem, which will be oil if that's what's above the
guide.
Back int he 60's. I sort of invented a luber because the machine shop had
not installed my rear cam bearing correctly and I had no oil flow into the
rockers. I discovered it with the engine in the car, getting ready to move to
Texas from California, I drilled out one of the bolts in the oil gallery and
one on the back of the head and connected tubing between the drilled out
bolts
(I had brazed nipples on the heads). It lasted until the next rebuild 20
years later.
That is the only reason i can think of for an additional lube line.
Best, Mike Moore
=== This list supported in part by The Vintage Triumph Register
=== http://www.vtr.org
|