I would have to agreee with Tony, even with bad rings you should still ahve
some compression, otherwise, its a broke/bent/chipped valve
Bill Day
billday@consolidated.net
AIM - BadManD73
'95 Ext Cab 3.9Mag 4x4 Flame Red
----- Original Message -----
From: "Tony Cellana" <acellan1@tampabay.rr.com>
To: <dakota-truck@dakota-truck.net>
Sent: Thursday, August 21, 2003 6:31 AM
Subject: DML: Re: Zero Compression!!!
>
> Time to pull the head. If it developed that quickly, I'd venture a
guess
> that the valve is bent, or chipped.
> TonyC
>
> -----Original Message-----
> From: Michael Clark <dml@mikesdakota.com>
> To: dakota-truck@dakota-truck.net <dakota-truck@dakota-truck.net>
> Date: Wednesday, August 20, 2003 10:58 PM
> Subject: DML: Zero Compression!!!
>
>
> >
> >Ok, so a few days ago I'm cruising at 90 and I lean on
> >the gas a bit, not enough to downshift but crowding it
> >fairly hard. All of a sudden it hesitates and
> >backfires through the exhaust. So I let off, take my
> >exit and come to a stop. After that I had a bad miss
> >in the engine. Yesterday I did a tune up, new
> >cap/rotor, plugs, even pulled the valve covers and
> >checked for misaligned or loose rockers, all looked
> >fine. By this point the miss had turned in to a
> >miss/popping sound coming from the exhaust. Like a
> >backfire but nowhere near as loud or sharp. So this
> >evening I put my compression guage on it and found
> >that number 7 has absolutely ZERO compression! The
> >plug was also very black after only 30 miles. I put in
> >some oil in that cylinder but compression remained at
> >0 on the guage so I think the rings are fine. My oil
> >looks nice and clean so I don't think it's a cracked
> >head. I'm thinking it's a burnt or bent valve (leaning
> >towards burnt). Does this make sense to you guys?
> >Could this be what was causing my code 52 (mixture too
> >rich)?
> >
> >--Mike
> >www.mikesdakota.com
> >
> >
>
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