Re: thumping sound in motor

[Gary <mopar413@xxxxxxxxxxx>]

Start the engine and then pull one plug wire at a time and listen for a change in the sound.  If it is a piston or rod then it will quit knocking or at least quite down.  Pull one put it back then do anotherone untill you have done all. If no change in the sound then you have something else wrong.  Make sure torque conveter bolts are tight.
---- Alex Ariemiea <ajaremea@xxxxxxxxxxx> wrote: 
> 
> No, I didn't try pulling all the plugs and cranking it. I don't understand what this would show?
>                                                                                 Thanks,  Alex
> 
> --- On Thu, 4/23/09, Dodger7998@xxxxxxx <Dodger7998@xxxxxxx> wrote:
> From: Dodger7998@xxxxxxx <Dodger7998@xxxxxxx>
> Subject: Re: thumping sound in motor
> To: 1962to1965mopars@xxxxxxxxxx
> Date: Thursday, April 23, 2009, 8:27 PM
> 
> 
> did you try pulling plugs out and cranking it over
>  
>  
> In a message dated 4/23/2009 7:11:54 P.M. Central Daylight Time,  
> ajaremea@xxxxxxxxxxx writes:
> 
> 
> I  just came in from the garage and got under the car, I had my hand on the 
>  bottom of the oil pan but could not feel anything hitting it. Plus the 
> noise  was no where near as loud at the oil pan. Still sounds to me like it 
> coming  from the middle of the motor. I also pulled each plug wire off one by 
> one and  it made no difference on the sound.  Don't know where to go from  
> here.                                                               Alex
> 
> --- On Thu, 4/23/09, Scott Mirabella  <jmirab2972@xxxxxxxxxxx> wrote:
> From: Scott Mirabella  <jmirab2972@xxxxxxxxxxx>
> Subject: RE: thumping sound in motor
> To:  1962to1965mopars@xxxxxxxxxx
> Date: Thursday, April 23, 2009, 5:18  PM
> 
> 
> Hi,
> When I was 19 I rebuilt the 390 in my 70' AMX. Put it the  car and drove 
> to the muffler shop with open headers (I was 19 remember!).  When the guy 
> buttoned up the exhaust he lowered the lift and I started it  up. There 
> was a loud thumping coming from the bottom end. I almost puked!  He 
> lifted the car again and we listened. The noise was coming from the oil  
> pan. I was figuring on a tare down. But this old guy who worked there  
> came over with a rubber mallet. He smacked the back of the sump and the  
> oil pan popped, the noise went away. I guess I had caved in the bottom  
> of the pan while the engine was on the dolly. It's a long shot but worth  
> checking.
> 
> Scott Mirabella
> 1964 Fury convertible
> 383  4speed
> 
> 
> > From: Alex Ariemiea
> > Date: 4/20/2009 1:54:56  PM
> > To: 1962to1965mopars@xxxxxxxxxx
> > Subject: Re: thumping sound  in motor
> >  
> > Pulling the plug wires will be my next move.  I'll let you know what 
> > happens.   Alex
> > [Non-text  portions of this message have been removed]
> > 
> 
> 
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----
Please address private mail -- mail of interest to only one person -- directly to that person.  I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic.  Thanks!

'62 to '65 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html. 

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