RE: IML: Lifter collapse - 1955
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RE: IML: Lifter collapse - 1955



If it is just one it could be just a bad lifter. I would try a stethoscope to try and narrow it down as far as location. I would then pull that side valve cover off and check for proper lifter preload as well as possible incorrect valve stem height. You never know with an engine that has an unknown history. Just look for a valve stem that is sitting higher or lower than the rest. It happens whether from a bad seat or a wrong valve installed.

Robin Giesbrecht
1972 Imperial

From: Kenyon Wills <imperialist1960@xxxxxxxxx>
Reply-To: mailing-list@xxxxxxxxxxxxxxxx
To: IML <mailing-list@xxxxxxxxxxxxxxxx>
Subject: IML: Lifter collapse - 1955
Date: Sun, 19 Mar 2006 11:40:22 -0800 (PST)

The 55 has done more sitting than driving lately (last
18 months).  It was bought from a PO that claimed the
engine was rebuilt.  Block is clean and painted
day-glo orange, so it has definitely been out of the
car at some point.  Strangely, it appears that the
accessories were not replaced at time of engine
rebuild.  Why one would want to skip redoing $400 of
acessories on a rebuild beats the heck out of me...



When I start it, I hear tremendous lifter noise.
Sounds like one and not all.   Tap Tap Tap - not
tapety tapety tapety.  The first few times that the
car came up to temp, the noise abated within a minute
or so of operation and a little revving.  Now it does
not seem to be doing so, and a 3/4 mile trip around
the block on car (no plates on it) yeilded no
improvement.

I presume that the car has hydraulic lifters?  I don't
know the 55 engine well at all.

What causes lifter noise in a presumably recently
rebuilt, but sitting forever engine?  Should I just
drive the thing and get it on the freeway before
tearing apart?

Oil pressure indicator says that there's plenty of
pressure, and I'm wondering if the temp just needs to
come up?  How to diagnose without removal of the
intake manifold?

Kenyon Wills
























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