Rich:
Glad to hear the re-power is coming along. If you don't mind me asking,
who is doing the work on the engine?
And also, just curious, how do you think this happened "one of the
pistons looked as though some water may have got in and possibly seized
a ring"?
Bob Abbott
AZURA
C&C 32 - 84
Halifax, N.S.
On 2012/08/31 10:23 AM, Rich Knowles wrote:
You may recall my engine decided to revolt a couple months back when
it blew all its oil into the bilge and almost seized up. After a bit
of thought and asking a few questions, I bought a low-hour used Yanmar
3GM30 thinking it would be an easy install. Turned out to be very
difficult to locate parts to mate it to my Hurth V-drive transmission
and I eventually gave that idea up and put the engine in my storage space.
After a couple of days of work, I dissembled all the surrounding
woodwork and weaseled the engine out from under the cockpit sole into
the aft cabin, an interesting exercise to say the least. I think they
suspended the engine in mid-air and built the boat around it. I
removed the carcass with the club jib crane and lugged it off to the
local engine rebuilding experts. They tore it down to see what caused
the blow-by which had caused the problem. There was nothing obvious at
all to be seen other than one of the pistons looked as though some
water may have got in and possibly seized a ring. They magnafluxed the
head and all is good. Also, surprisingly, the interior of the block is
a clean as a whistle with no corrosion or deposits of note. Pretty
good for a raw-water cooled engine.
We decided to replace the cylinder liners, pistons and rings, crank
bearings, exhaust valves, thermostats and motor mounts. Everything is
available in NA except the head and pan gaskets which are on the way
from Japan. Total rebuild cost will be around $3,500. Maybe....
While I'm awaiting the parts, I've been cleaning the bilge and
swamping out the engine room. I've stripped out a bunch of previously
inaccessible old wiring and plumbing too and am replacing anything
that looks suspicious. Lots of dirty fun.
If anyone needs it, I have a perfectly good low-hour Yanmar 3GM30 for
sale. I have $4,800 in it and that's what I'm asking.
More to come as the best summer in years slowly disappears...
Rich Knowles
INDIGO - LF38
Halifax, NS
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