Re: [Chrysler300] 300H Fuel problem - answer

[Robert Merritt <okbobwynmer@xxxx>]

Warren,
I agree that the bushing should be replaced when
rebuilding. In an already installed engine, I pull the
distributer, and check for excessive side play in the
shaft and pull it out and see if the shaft shows wear
just below the gear and if so, replace the shaft at
the same time the bushing is replaced and burnished. I
always replace the shaft with the heavy-duty Direct
Connection shaft. The hex end that drives the oil pump
is machined instead of a piece of hex stock pressed
into a hole on the lower end of the shaft which can
turn and cause oil pressure loss. The best thing to do
with the old shaft is grind all the teeth off the gear
so it can turn free without touching the camshaft gear
and use it to pre-lube the bearings without having to
turn the engine. A flat screwdriver chucked in a drill
to turn the oil pump the same rotation as the
distributer rotation marked on the intake manifold
untill the guage shows pressure
I don't do this on a fresh engine that I KNOW was
assembled with proper engine assembly lube, but if i'm
going to try to stsrt an engine that I don't know how
long since it has been run, I sometimes pre-lube to be
safe. I just hate to hear rods rattle until oil
pressure picks up.
--- Warren R Anderson <wranderson@xxxx>
wrote:
> 
> >rocker arm shafts. The only oil supply to the
> rocker
> >arm shafts comes from the #4 cam bearing and is not
> >full pressure but is an intermitent supply as holes
> >drilled thru the camshaft journal line up with
> holes
> >in the cam bearing. Have the cam bearings been
> >replaced? If the holes in the bearing aren't lined
> up
> >with the holes in the block it can louse up the
> upper
> >end oiling. The chatter you hear could be rocker
> arms
> >rattling on the shaft instead of being cushioned by
> >oil.
> 
> 
> There is a short shaft between the distributor and
> the fuel pump. This shaft
> runs in a flanged bronze (?) bushing that is a press
> fit in the block (IMHO
> should always be replaced when engine is apart). It
> is not pressure
> lubricated. If lube oil flow is not properly
> directed in the upper valve
> train area, this bushing will fail. We have been out
> of town riding north of
> the Grand Canyon for the last 5 days so may have
> missed notes on this
> subject. The Merritt Message I did find otherwise
> covers it all very nicely.
> 
> BTW Chrysler had some problems with this bushing in
> there SB V8's & possibly
> some V6's in Dakota applications just a few years
> ago.
> 
> Warren Anderson
> Sedona,AZ
> 
> 
> 
> 


__________________________________
Do you Yahoo!?
Yahoo! Calendar - Free online calendar with sync to Outlook(TM).
http://calendar.yahoo.com