Date: Mon, 31 Jan 2005 18:49:25 -0600
Reply-To: Stan Wilder <wilden1-1@SBCGLOBAL.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Stan Wilder <wilden1-1@SBCGLOBAL.NET>
Subject: Re: Low Compression after Spark Plug Incident
Content-Type: text/plain; charset=iso-8859-1
Sure sounds like broken rings on a bad piston.
------------------
Along with the low compression you should be getting oil out the tailpipe
and blowby out the valve covers, crank vent etc if you've got a broken ring.
You should be able to see the Puff Puff of the crank case ventilator if you
pull the tube and just watch or put your finger over the vent pipe hole.
Stan Wilder
Engine Ceramics
214-352-4931
www.engineceramics.com
----- Original Message -----
From: "Dennis Haynes" <dhaynes@OPTONLINE.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Monday, January 31, 2005 6:06 PM
Subject: Re: Low Compression after Spark Plug Incident
> As I stated when you first posted the problem, the engine was knocking
> and pinging itself to death. Even if the water temp was normal, for some
> reason the actual combustion temps and pressures were not. You most
> likely started burning the pistons and breaking rings. You may even have
> a burned valve. Since you know the engine is now affected, you are
> looking at least a rebuild of the top end. Excessive knocking is also
> hard on the rod bearings.
>
> Dennis
>
> -----Original Message-----
> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
> Of James V
> Sent: Monday, January 31, 2005 4:23 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Low Compression after Spark Plug Incident
>
> Recently, I posted regarding a problem where my van suddenly lost power
> and
> I found that one of my spark plugs (#2) had broken (topic: "Broken Spark
> Plug Electrode/Tip"). After receiving some kind advice from the list, I
> simply replaced the plug and hoped for the best. But after replacing,
> the
> van was still running poorly, with low power particularly on
> acceleration,
> as if that cylinder was not running right (it was firing).
>
> After some obligatory useless fiddling, I ended up taking it to the
> shop,
> which found that compression on the #4 cylinder was very low, while it
> was
> good on the others, including the #2 which had the fried plug. The van
> was
> running fine before the spark plug incident. So, strangely to me, it
> seems
> that the spark plug incident on the #2 cylinder caused the problem I'm
> now
> having w/ the #4.
>
> Is this possible? Any ideas?
>
> Thanks,
>
> James V
> 90 Carat
>
>
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