78 NYB STILL ROUGH RUNNING

[RandalPark@xxxxxxx]

I am with you on this one Phil. That last post full of symtoms brought a loose 
timing chain quickly to mind.

Paul

In a message dated 12/31/2003 3:08:56 AM Eastern Standard Time, 
hilljack7@xxxxxxxxxxxxx writes:

> 
> 
> While your checking things, dont forget to check the timing chain! The way
> the symptom changes sounds like how timing will bounce all around with a
> loose chain. Easily checked by popping the distributor cap and turning the
> motor by hand one way, then the other. There should be almost no hesitation
> at the rotor when reverse direction at the crank. If there is much more than
> a quarter of an inch of slack at the damper before the distributor rotor
> reverses directions, odds are your chain is loose and stretched, or in some
> cases the nylon has came off the teeth. This will require dropping the pan
> and cleaning the pickup, luckily not that big of a job on a Mopar big block
> thanks to it's flat flange construction.
> Phil <><
> ----- Original Message -----
> From: "Bruce Stubblefield" <audiblefeast@xxxxxxxxx>
> To: <mailing-list@xxxxxxxxxxxxxxxx>
> Sent: Tuesday, December 30, 2003 5:56 PM
> Subject: IML: 78 NYB STILL ROUGH RUNNING
> 
> 
> >   The car randomly and
> > sporadically loses power and/or knocks terribly at 50
> > to 70 mph, then after a few seconds or after I back
> > off the gas and step back on  it, power returns to
> > normal and knocking stops.  I'm not talking about
> > knocking on hard acceleration, which it normally
> > doensn't do.  Also, at low speed coasting, hitting the
> > gas occasionally causes a popping out the intake of
> > the carb.  Sometimes is blows off the air intake hose
> > attached to the horn of the air cleaner assembly.
> 
> 
> 
>