Fwd: Re: [Vwdiesel] Re-ringing a Rabbit --Oil pressure test bad
Bart Wineland
bwinelan at allegheny.edu
Mon Oct 18 19:47:37 EDT 2004
Got a oil pressure gauge and metric fitting kit tonight and plumbed it into
my 1.6 na hydraulic Jetta. This is on a fresh re-ring I did and figured I
clobbered when I went to start it for the first time and spun the cam gear
making all kinds of bad sounds. I did do a compression test on it after I
re timed it before I got it running and had from 320 to 380 on all four
cylinders so was hopeful I hadn't bent any valves. The car will start. I
get lots of gray/white smoke especially if I rev it up. The oil light and
buzzer come on as soon as I try to drive off. I plumbed in the oil
pressure gauge in the head sensor and even I can decipher the results. It
starts right up and builds pressure to about 70 psi max over about 20
seconds. It doesn't take long for it to start to warm up and loose o.p. If
I rev it a little it builds up some but as soon as it tachs down again it
loses all it built and then some. After running for 12 to 15 minutes the
pressure is clear down to 10 psi. I noticed I am dripping oil somewhere
also and looked carefully while it was running. I can see it blowing oil
bubbles around the exhaust flange. Not sure if that is from oil that landed
there when I had the valve cover off or if it is coming from the exhaust.
Sure looks like I really screwed it up. How can I be getting so much blow
by already unless I did bend some valves or could I have broken some of the
new rings when pistons met valves under starter power? I was hoping that
the hydraulic lifters that could not have been pumped up that there may
have been some forgiveness but now I wonder. I want to do the compression
test again but am out of heat shields and re dimpled mine twice and they
have some tiny cracks so need to get more.
thanks,
Bart
>From: Libbybapa at wmconnect.com
>Date: Sat, 16 Oct 2004 22:50:30 EDT
>Subject: Re: [Vwdiesel] Re-ringing a Rabbit --(the Wineland way )
>
>Put the gauge into the head oil sensor port, not the oil filter flange one.
>Andrew
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