Canadian Yachting October 2023 - 26
HOW TO
ABNORMAL ENGINE VIBRATION?
RUBBER DUST AROUND ENGINE MOUNTS?
TELLTALE SIGNS OF
POSSIBLE ENGINE MOUNT WEAR
OR IMMINENT FAILURE.
Story By | Marc Robic
I
t is always discomforting when you
know, and actually feel, that something
is not quite right.
For a little while now, while navigating
under power, I felt some " new " vibrations
that simply did not feel right. Putting the
boat safely on autopilot, I went down into
the cabin, opened up the rear engine cowl
and realized it was the propeller shaft that
seemed to be the origin of the vibration.
Either caused by poor shaft alignment
(which was not the case) or something
else was causing this issue.
While inspecting the engine mounts,
the most likely culprits, I noticed the rear
port side engine mount was leaving a lot
of rubber dust and residue around itself.
With the engine stopped, I was able to
actually move or twist the mount by hand.
These are telltale signs of engine mount
wear and, in the case of that particular
mount, a possible and imminent mount
failure - which is the last thing anyone of
us would want! Especially when considering
other collateral damage that it could
or would possibly cause.
With the engine mount so worn, in
addition to its close proximity to the transmission
and prop shaft link, this is what
was causing the excess vibration while
under load (forward or reverse). Plus, it
means the starboard rear mount has been
compensating by taking on extra stress,
Front Engine Mounts
therefore also getting more wear and tear.
As the mounts are original (27 years
old), it would make no sense to change
just one mount. Is it more work? Yes
of course, but if one is about to fail, the
chances are, the others are not far behind.
So, using my philosophy that " maintenance
costs much less than repairs " ,
I ordered 4 new engine mounts. In my
case, the engine is a Perkins M20 diesel,
so I ordered these from Part 4 Engines
in the UK (www.part4engines.com). I
also ordered the matching hardware. If
you're going to change things like engine
26 CANADIAN YACHTING | OCTOBER 2023
mounts, you might as well change the nuts
and bolts too.
Another thing I personally consider
important when changing engine mounts
on a sailboat, is to make sure the mast is
up and the rigging tension is properly set,
as this will ensure proper prop shaft alignment.
I also recommend having the boat
in the water and not sitting on a cradle or
trailer for the same reason. At least, plan
the fi nal engine to prop alignment when
she's in the drink and the rigging is properly
tensioned.
In most cases, the tools needed are
http://www.part4engines.com
Canadian Yachting October 2023
Table of Contents for the Digital Edition of Canadian Yachting October 2023
AT THE HELM: CANADIAN YACHTING CHANGES NAME TO CANADIAN BOATING!
FEATURE EDITORIAL: GALLEY GUYS (AND GALS) BAREFOOTIN’ ST. VINCENT & THE GRENADINES
POWER REVIEW: MAREX 330 SCANDINAVIA
FEATURE EDITORIAL: SERIOUS FUN AT THE ST. MAARTEN HEINEKEN REGATTA
HOW TO: CHANGING YOUR ENGINE MOUNTS
THE PORT HOLE: OCTOBER 2023
SAIL REVIEW: BALI 4.4 OPEN SPACE
FEATURE EDITORIAL: A TALE OF TWO ISLANDS
CROSSING THE LINE: HIGHLIGHTS OF SUMMER ‘23
Canadian Yachting October 2023 - Intro
Canadian Yachting October 2023 - Cover1
Canadian Yachting October 2023 - Cover2
Canadian Yachting October 2023 - AT THE HELM: CANADIAN YACHTING CHANGES NAME TO CANADIAN BOATING!
Canadian Yachting October 2023 - 4
Canadian Yachting October 2023 - 5
Canadian Yachting October 2023 - FEATURE EDITORIAL: GALLEY GUYS (AND GALS) BAREFOOTIN’ ST. VINCENT & THE GRENADINES
Canadian Yachting October 2023 - 7
Canadian Yachting October 2023 - 8
Canadian Yachting October 2023 - 9
Canadian Yachting October 2023 - 10
Canadian Yachting October 2023 - 11
Canadian Yachting October 2023 - 12
Canadian Yachting October 2023 - 13
Canadian Yachting October 2023 - POWER REVIEW: MAREX 330 SCANDINAVIA
Canadian Yachting October 2023 - 15
Canadian Yachting October 2023 - 16
Canadian Yachting October 2023 - 17
Canadian Yachting October 2023 - 18
Canadian Yachting October 2023 - 19
Canadian Yachting October 2023 - FEATURE EDITORIAL: SERIOUS FUN AT THE ST. MAARTEN HEINEKEN REGATTA
Canadian Yachting October 2023 - 21
Canadian Yachting October 2023 - 22
Canadian Yachting October 2023 - 23
Canadian Yachting October 2023 - 24
Canadian Yachting October 2023 - 25
Canadian Yachting October 2023 - HOW TO: CHANGING YOUR ENGINE MOUNTS
Canadian Yachting October 2023 - 27
Canadian Yachting October 2023 - 28
Canadian Yachting October 2023 - 29
Canadian Yachting October 2023 - 30
Canadian Yachting October 2023 - THE PORT HOLE: OCTOBER 2023
Canadian Yachting October 2023 - 32
Canadian Yachting October 2023 - 33
Canadian Yachting October 2023 - 34
Canadian Yachting October 2023 - 35
Canadian Yachting October 2023 - 36
Canadian Yachting October 2023 - 37
Canadian Yachting October 2023 - 38
Canadian Yachting October 2023 - 39
Canadian Yachting October 2023 - 40
Canadian Yachting October 2023 - 41
Canadian Yachting October 2023 - 42
Canadian Yachting October 2023 - 43
Canadian Yachting October 2023 - SAIL REVIEW: BALI 4.4 OPEN SPACE
Canadian Yachting October 2023 - 45
Canadian Yachting October 2023 - 46
Canadian Yachting October 2023 - 47
Canadian Yachting October 2023 - FEATURE EDITORIAL: A TALE OF TWO ISLANDS
Canadian Yachting October 2023 - 49
Canadian Yachting October 2023 - 50
Canadian Yachting October 2023 - 51
Canadian Yachting October 2023 - 52
Canadian Yachting October 2023 - 53
Canadian Yachting October 2023 - 54
Canadian Yachting October 2023 - 55
Canadian Yachting October 2023 - 56
Canadian Yachting October 2023 - 57
Canadian Yachting October 2023 - 58
Canadian Yachting October 2023 - 59
Canadian Yachting October 2023 - 60
Canadian Yachting October 2023 - 61
Canadian Yachting October 2023 - CROSSING THE LINE: HIGHLIGHTS OF SUMMER ‘23
Canadian Yachting October 2023 - Cover3
Canadian Yachting October 2023 - Cover4
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