Re: Re: O/T: 91 Sundance - plugs question

From: Brian Tong (thedude807@hotmail.com)
Date: Thu May 22 2003 - 20:41:28 EDT


Start with a compression test. Sounds like a bad ring/piston to me. A
blown head gasket MIGHT do the same thing, but generally you'll get coolant
mixed in there, too.

>From: "Ken Allgood" <kenallgood@cox.net>
>Reply-To: dakota-truck@dakota-truck.net
>To: <dakota-truck@dakota-truck.net>
>Subject: DML: Re: O/T: 91 Sundance - plugs question
>Date: Thu, 22 May 2003 20:26:16 -0400
>
>
>and let me add, after new plugs and rotor are in, I let the engine run for
>about 10 seconds, pulled out that the new plug in that same cylinder
>(engine
>was still running VERY rough) and it is now coated in oil too!
>
>Ken
>
>----- Original Message -----
>From: "Ken Allgood" <kenallgood@cox.net>
>To: <dakota-truck@dakota-truck.net>
>Sent: Thursday, May 22, 2003 8:15 PM
>Subject: DML: O/T: 91 Sundance - plugs question
>
>
> >
> > Hey all, working on my dads 91 Plymouth Sundance (I think the 2.5L
>engine)
> > because it was running rough and he lost all engine power while driving
>it
> > on the hwy (making some pinging sounds he says too). Well, went right
>to
> > the plugs and first one was coated black all around, so figure getting
>no
> > spark. Go and get some new plugs/cap/rotor, get to the 2nd plug, and
>the
> > tip is just coated in oil. Am I right in assuming that this is a valve
>seal
> > blown???? What are the possible problems that can cause that? We know
>this
> > engine is on it's last legs, he's just driving it until it kills
>over....
> > Thanks for any insight!
> >
> > Ken Allgood
> > 97 CC SLT 5.2L
> >
> >
>

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