Re: [Amc-list] Engine Vibration

["I. Herman" <73jav@xxxxxxxxxxxxxxx>]

Joe - thanks.  I'll forward this on as i'm not qualified either.

I know the fuel system just got revived yesterday (fuel filter).  The  
plugs were properly gapped and wires replaced fairly recently.  The  
engine has been on mounts for quite some time now (5+ yrs), so I dunno.

I. Herman
1973 Javelin
Atlanta, GA


On Apr 13, 2007, at 1:03 PM, JOE FULTON wrote:

> Izzy,
>
> Engine vibrations can come from a number of causes.
> It is difficult to diagnose the cause based on second
> hand information....difficult for you, and difficult
> for anyone on the list to do it by remote control.
>
> If the engine is newly transplanted, of course, have
> the "crew" check the motor mounts for proper
> installation and condition.
>
> A vibration upon acceleration can often come from a
> misfire, so make sure the spark plugs are clean and
> properly gapped and check the condition and
> installation of the entire ignition system, especially
> the plug wires and distributor gap.  Check the point
> gap if the distributor still has points.  Check the
> timing and how the centrifugal advance works.
>
> Check for vacuum leaks, since the engine could be
> running lean on acceleration (although that will
> ususally cause a backfire through the carb, which you
> did not mention).
>
> The vibration also be fuel related.  Inadequate flow
> from the accelerator pump on the carb could be cause
> my an inadequate pump stroke or defective pump.
>
> If they really want your help, and you feel qualified,
> you should go to the car or have it brought to you.
>
> My $0.02.
>
> Joe Fulton
>
>
> --- "I. Herman" <73jav@xxxxxxxxxxxxxxx> wrote:
>
>> All -
>> First off...hello again to all of you...been gone
>> for a
>> while....anyhoo..
>>
>> Scenario:
>>
>> 73 Javelin, Automatic Transmission
>> Engine = 76 360 from grand wagoneer, bored .060 over
>> Fuel - Edelbrock Performer Intake/Carb
>>
>> The car is at my ex-wife's house and her crew has
>> been working on
>> it.  The description I'm getting is:
>>
>> "If i idol and gently press gas, no problem, but as
>> soon as I
>> accelerate, it seems the engine vibrates a LOT"
>>
>> What could be causing this?  Loose motor mounts?
>> Harmonic balancer
>> issue?  Suggestions?  Thoughts?
>>
>> Thx in advance and it's good to be back..especially
>> since my car is
>> at least running finally (w00t).
>>
>> I. Herman
>> 1973 Javelin
>> Atlanta, GA
>> _______________________________________________
>> Amc-list mailing list
>> Amc-list@xxxxxxxxxxxx
>> http://www.amc-list.com/mailman/listinfo/amc-list
>>
>
> _______________________________________________
> Amc-list mailing list
> Amc-list@xxxxxxxxxxxx
> http://www.amc-list.com/mailman/listinfo/amc-list
>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://www.amc-list.com/pipermail/amc-list/attachments/20070413/c70ffac8/attachment.htm 
_______________________________________________
Amc-list mailing list
Amc-list@xxxxxxxxxxxx
http://www.amc-list.com/mailman/listinfo/amc-list