I once had a 79 volvo where the spark plugs would loosen over time. Interesting PITA.
Jon

Sent from my iPhone

> On May 19, 2015, at 9:19 AM, Dave Mcneely <mcneely4@COX.NET> wrote:
> 
> A  loose spark plug?  Pretty fundamental.
> 
> ---- PSD <psdooley@VERIZON.NET> wrote:
>> Gentlemen, I can see how a loose spark plug would make you lose confidence
>> in the installer.
>> 
>> But have you not forgotten to tighten something once?
>> Would you agree with someone calling you incompetent due to one mistake?
>> 
>> Give the guy a chance.  If you find another occurrence, then gather the
>> torches and pitchforks.
> 
> --
> David McNeely