TwinTurbo.NET: Nissan 300ZX forum - Yes, HF =) But all leak-down gauges behave the same...
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Subject Yes, HF =) But all leak-down gauges behave the same...
     
Posted by evan_aggie on April 24, 2010 at 11:12 PM
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In Reply To I'm trying to follow your post.. posted by Draker (Eugene, OR) on April 24, 2010 at 10:08 PM
     
Message What was funky about the HF gauge? You have two dials.
Either both say PSI or one usually says PSI and one says %
leakage.

In either case, I believe you have to calibrate the leakage with
the regulator knob.

In any event, I took all 6 readings and am going to take a
couple more in the morning once again just to confirm.

1 - 10%
2 - 20%
3 - 8%
4 - 19%
5 - 19%
6 - 20%

Keep in mind, this engine could have been sitting for some
time. I put a little mystery oil into each spark plug hole.

I'm going to check #1 and #3 again, as well as #2 just to see
if i get a 10% difference between them.

In all cases, I only heard air coming out of the dipstick. There
was also a cut tube coming from the oil pan...I heard air there
too.

     
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