[V8] MPG - contiuing saga

[Coleman, David]

I for one find your diagnostics interesting and enlightening, and am staying tuned. 

When I did a comp test on my 3.6 many moons ago, I found it hard to get any real consistency, engine warm or cold. Not untill I had the short block, pistons and all still there, on a stand and filled the cylinders with the GM top cleaner and saw one hole drain way faster than the others (a couple hours as opposed to a few days, if that) did I have any real measure of which ring set was bad. At least it corresponded somewhat with the test readings before pulling the motor. 

-dc-

--------------------------
David A. Coleman
BlackRock
Sent via BlackBerry Wireless


----- Original Message -----
From: v8-bounces at audifans.com <v8-bounces at audifans.com>
To: V8 list <v8 at audifans.com>
Sent: Sat Feb 24 21:33:32 2007
Subject: Re: [V8] MPG - contiuing saga

Ok,
   I think I left this at the point where I belived that the valve timing
was off - and that may be the cause of my low compression in one cylinder.
 I was out there tonight and found the following.  I made a homade leak
down tester - checked the dead cylinder against another cylinder and found
that it was no different.  Did another compression test on the 'dead'
cylinder and two others - all three were at 90 psi - what the heck? -
These used to be at 120psi - athough I did this test cold I thought it
would at least show close?  Anyway, I guess I'm going to put this thing
back together and see what happens.  I re-adjusted the valve timing and I
changed the passenger side header gaskets/o-rings. (I think I had one
leaking - which could have caused the 02 code)  I will report back again
when I get it together.  Thanks for listening one more time.  

           Jason


 
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