[PUP] Relaunching suggestions
Rick Redfern
advanzio at yahoo.com
Mon Feb 18 12:22:15 EST 2008
Rob:
Nine seasons without cranking the engines can be
a real problem. Before you crank that engine,
you have to remember that oil has not passed
through ANY of the bearing surfaces for those 9
long seasons. Odds are, one, probably a main,
has zero oil on its surfaces. Cranking that surface
dry WILL cause a small amount of the copper babette
surface to transfer to the hopefully very smooth
crankshaft surface. It WILL come back and remind
at the most inopportune time by allowing a sound
like Gene Krupa playing a big bass drum in your
engine.
The real solution?
Find a shaft from the old oil pump
and attach to a low speed drill and put it through the
distributor hole in your gas engine and have it
turn the oil pump. You don't need a high speed drill,
even just 200 rpm will do it. You may even have to
fabricate a longer rod, however an old distributor
shaft will suffice. Fill up the crankcase with oil and
slowly turn the oil pump shaft until you get an oil
pressure reading. Do that for another 10 seconds.
You have now lubricated every bearing surface
in that gas-gobbling engine. Put the distributor back
in set the timing cold and fire it back up.
If I have lost you with this, get a real mechanic who
understands this and have him do it. Unfortunately,
younger mechanics today do not do this and they
wonder why engines that have been sitting for a
long time suddenly go into "Unscheduled Disassembly"
mode not long after starting.
Rick Redfern
An old Gasoline/Diesel engine rebuilder
--- Rob Zanussi <rzanussi at shaw.ca> wrote:
> Hello all. Please forgive the cross postings but I
> know not everyone
> belongs to every list and I am looking for as much
> info as I can get.
>
> As some of you know my work in progress has been out
> of the water for 9
> seasons now. It is a steel hull and due to the
> neglect by the PO rusted
> thru from the inside. I now have a new bottom in
> place and am going to
> launch it this spring. I am looking for help/hints
> on what items may
> require changing, repair, examination due to the
> length of time out of water.
>
> Some of what I have thought of include
> Thru hull valves - disassemble and replace washers
> etc
> Hose integrety of thru hulls, engine coolant, fuel
> line etc
> Stuffing box - will the packing need to be replaced?
> What about the propeller shaft bearings? Are there
> such creatures? I
> suspect there will be but being an automotive guy
> until recently I am not
> sure.
> It is gas powered, what about the fuel tanks. They
> appear to be aluminium.
> I have not been able to get underthem to look but
> are they in as much
> "danger" of rusting thru as iron tanks.
> New zincs - although for the first few years it will
> be in fresh water only
>
> The engines were properly drained, oil changed, I
> haven't checked the plugs
> yet, but I did find a bunch of old dirty ones inside
> the cabin so I am
> assuming they are new too. I am planning on turning
> the engines over
> without spark initially to get some oil up into the
> valve trains and heads
> etc. I will also be putting a drop or two into each
> cylinder prior to
> turning them over and will check to ensure the plugs
> are new
>
> Any other hints, thoughts etc would be appreciated.
>
> Replies can be sent off list unless you think
> everyone will benefit from it.
>
> Thanks
>
> Rob Z
> 74 Georgian Steel 34 ft
> No Name Yet
> No Home Port either
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