[V8] Compression test

[Ingo Rautenberg]

Yes, all plugs should be removed (more for consistency in readings than
anything else).  Actually, sounds pretty good for 10.5 :1  If it is a bit
high (don't have the manual with me), it might be because of Carbon
Build-up.

----- Original Message ----- 
From: "Thomas Barbera" <barberat at yahoo.com>
To: <v8 at audifans.com>
Sent: Wednesday, April 06, 2005 10:56 AM
Subject: [V8] Compression test


> Fellow V8 fans,
> I did a compression test on my motor yesterday, got
> some interesting results.  All 8 cylinders read 210 to
> 220 psi.  Seems too high.  Either my gauge is off or
> I'm doing something wrong.  I followed Bentley's
> instructions.  Removed fuse 13, removed coil wires and
> grounded them.  I cranked the engine for about 8
> seconds on each cylinder with the throttle open, just
> as bentley says.  Is this procedure correct?  I read
> somewhere that all of the plugs should be removed for
> the test, I didn't do this, howerever I don't think it
> would make a difference.  I'm going to try and test
> the gauge to make sure it works properly.  Any other
> suggestions?  Thanks in advance.
>
> Tom B.
> '91 V8 5spd
>
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