The sound you are hearing is the valve lifters. I just got done running the
engine for 20minutes at 175degrees. Its definitly coming from where the
lifter covers are. But the engine runs good so I am not going to worry about
it
I am more concerned with the crappy idle and other scary things described
here http://p076.ezboard.com/fbocwebfrm33...icID=313.topic

I think once my warranty expires that is going to happen (read the thread)
"Mr Wizzard" wrote in message
...
Also, forgot to ask...
I found your posts when you first got your boat,
and was "experimenting" with different props...
So what was the final conclusion? - are you
back to the original factory prop, or something else?
Also, and so I know, what is the size of the factory prop?

Thanks.


"seeray28" wrote in message
...
its too late in the evening for me to do tonite. Ill warm it up in the
driveway when I get home wed. and let you know

I think I know what sound your talking about. I refer to it as the
engine
sounding like a model T. I dont think that it is piston slap. The iron
duke
engine has been around since the mid 60's and does not have an issue
with
slap. But it is a hydrolic lifter engine so the valve adjustment may be
off
a little. But all 8 lifters? I kinda doubt it. If it was the coupler???
First coupler either work or they dont. When they dont they make an
exceptionally expensive noise and smoke. So I dont think thats it.
Ill nose and ear around tomorrow
Steve
"Mr Wizzard" wrote in message
...
Steve,

Take a look at this post I recently made,
and let me know what you think. I like
your opinion since you are usually good
and verbose, and full of details. Anyways,
can you idle your boat (out of gear) with it
warmed up and take the cover off and stick
your head down on that non-manifold side
and see if you got this same clacking noise I
got? - 'preciate comparing notes. Thanks!

Here's what I recently posted:

So I finally got about 20 hours (I think) on my new 2005
Bayliner 175 Capri, and within the forst 10 hours, I
noticed a noise in the engine, and it seems pretty
pronounced at idle. It like a rattling noise, but the
best way to describe is that it sounds just like that
rattling sound of a diesel engine. I stuck my head
clean down in the engine compartment, and it seems
like its coming from the cover on the left side below
the head (where I think the lifters are at). This is a
Merc 3.0L straight 4. I'd "like" to think that it is
valve lash, but that "rattling", diesel-like sound has
got me worried, because in my car engine days,
this sounds just like piston slap/wrist pin type noise.
And when I really wedge my head down in the
engine compartment, it "almost" sounds like its
loudest from the back of the engine near the
flywheel/coupler, but I can't say that for sure.

Is this normal? - can someone shed some light
on the nature of this sound, and why it sounds
so much like piston/wrist pin type noise, and
not like the lifter noise of the old V-8's of years
gone by? Could it be just the physical layout
of the Merc 3.0L straight 4 and its valve train
layout? And if it is valve lash, is it normal to
need adjustment after 20-ish hours on a new
motor?. And one last question, does anyone
know for sure if the 2005 Merc 3.0L has
solid lifters, or hydralic lifters ? Is this
something that Olympic Boat centers is used
to doing in the fist few hours of new Merc 3.0L's ?

Thanks in advance!