Sept 22, 2022

by Marc Robic

Do you have abnormal engine vibration; rubber dust around engine mounts; telltale signs of possible engine mount wear or imminent failure?

Front Engine Mountscheck the engine mounts for wear

It 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 disturbed me. Putting the boat safely on auto pilot, 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 I determined 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 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! Consider other collateral damage that could possibly cause.

Engine Mount With Rubber Debristelltale signs

With the engine mount so worn, in addition to its 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, therefore also getting more wear and tear.

As the mounts are original (27 years old), it would make no sense to change just one. 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 four new engine mounts. For our boat, the engine is a Perkins M20 diesel, so I ordered these from Part 4 Engines in the UK. I also ordered the matching hardware. If you’re going to change things like engine mounts, you might as well change the nuts and bolts too.

Holding New MountMarc Robic holding a new engine mount

Another thing I 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 final engine to prop alignment when she’s in the drink and the rigging is properly tensioned.

In most cases, the tools needed are basic. Proper size wrenches, a ratchet, sockets and extensions and a sparkplug feeler gauge set. I also used the space saver scissor action jack from my car to hold the engine in place as a backup safety while I removed and replaced each mount one at a time.

 

 

Marc continues his project Part 2 in the next edition of CYOB

Marc RobicMarc Robic

Marc is a member of the Canadian Power & Sail Squadron. He and his wife sail their Catalina 270, Aquaholic 3, out of the Ile-Perrot Yacht Club in Montreal, where Marc spent 16 years as Harbour Master. They are regular Caribbean bareboat yacht charterers. With over 40-years experience, Marc is also an avid onboard do-it-yourselfer.

This email address is being protected from spambots. You need JavaScript enabled to view it.

Related Articles

Tuesday, 22 June 2021 16:05

As bareboat charterers for many years now, most boats we’ve had the pleasure of renting had an electric head. Much to our enjoyment and that of our fellow passengers, they are super simple to...

Tuesday, 06 April 2021 15:36

The desire or rather, the argument, to convince my wife (AKA First Mate) to convert our icebox to a fridge came after our first two trips onboard our Catalina 270, Aquaholic 3, up to the Thousand...

Wednesday, 27 January 2021 00:17

This area is where YOU get to express your opinions. That can include your thoughts on articles in our Digest or on any boating matter. This issue’s piece comes from Marc Robic. Marc is a...

Tuesday, 25 May 2021 16:39

Last issue we got up with Montreal sailor Marc Robic who has accumulated a lot of tips and tricks for prepping your boat, especially as we emerge from lockdown.

Tuesday, 11 May 2021 17:39

Spring has finally sprung! At least it has weather wise here in Montreal, so it is with great anticipation and boyish giddiness that I loaded the car with all the “things” I will need for this...

Wednesday, 09 September 2020 02:17

My Dad is not a mechanical guy. He is educated and well-read, and handy around the house – but not mechanical. When I was 12, I joined a trip to the local mechanic to get our family car fixed.

Boat Reviews

  • Prev
Over the years Canadian Yachting has had the pleasure of doing several boat review articles on new ...
When J/Boats set out to make their latest model, their thinking moved away from a boat that you had ...
Wellcraft launched a legacy of offshore boats from Sarasota, Florida more than 60 years ago and ...
The well-known Four Winns brand is now a part of the international boatbuilder Groupe Beneteau and ...
Boats have been in high demand for the past two years and there’s no sign of this easing. ...
When we arranged to interview the designer and manufacturer to write a profile of the X Shore Eelex ...
I am lucky to have the opportunity to helm many types of boats. I am even more lucky to sail boats ...
The weather wasn’t cooperating for our test of the new Fountaine Pajot Isla 40. Rain, storm clouds ...
Last August, we were again invited to the Neptunus Yachts facility in St. Catharines, Ontario to ...
Cruisers Yachts’ 34 GLS is the latest model in the Cruisers Yachts line that includes a dozen ...

Video Gallery

Neptunus 650F

By Andy Adams

Over the years Canadian Yachting has had the pleasure of doing several boat review articles on new Neptunus models and we are familiar with the qualities that Neptunus is famous for. They have all been exceptional yachts, but this is the one I would most want to own myself. It’s a personal choice and a matter of taste as to whether you would prefer to have a sedan express model or a flybridge but in my opinion, the flybridge layout offers some wonderful attributes.

We met with Neptunus Managing Director Jan Willem De Jong this past fall to take the new Neptunus 650F out in Lake Ontario. 

Read More

Destinations

  • Prev
I sail on Lake St Clair. Michigan is on one side of the lake, and Ontario is on the other. My ...
The bright summer sun forces its way through magnificent Arbutus trees as I dive off our ...
I was first seduced by the United States Virgin Islands during a ferry ride from St. Thomas to ...
It was the last day of August and we were in Little Current heading south. Our Lasalle winter haul ...
Cowichan Bay is a waterfront village with a row of shops, artisan products, marine supplies and a ...
Instant towns have sprung up in the past, especially on the BC coast. In the late 1850s, Victoria ...
Following the War of 1812, a battle that Canada narrowly won against the United States, the ...
You’ve weathered COVID and you’re ready to book your charter to paradise. You’ve done some ...
If you are looking for an interesting destination for a weekend trip or longer, Quebec City will ...
A holiday often is defined by the experiences we make in unique and beautiful settings. But what ...

Sunset off St. John

By Mark Stevens

I was first seduced by the United States Virgin Islands during a ferry ride from St. Thomas to Tortola to begin one of our earliest British Virgin Islands charters nearly twenty years ago.

A perfect sunset off St. John with St. Thomas views for backdrop.

Clearing Pillsbury Sound, surrounded by voluptuous emerald mountains as the ferry sliced through royal blue waters, I was struck by the unspoiled ambiance of St. John, the island gliding past our starboard beam and the irresistible charm of a village called Cruz Bay visible from our quarter stern.

Read More

Lifestyle

  • Prev
Our Video of the Week comes from Matt Ingram, a reporter at CHCH in Hamilton ON who investigated an ...
Good afternoon. With the possibility that the Kirkfield locks will be closed, we have no choice but ...
Introducing the next graduate in our marine career path series, April Scarlett. A former Ontario ...
Our Photo of the Week this time comes from our CY Team at FLIBS. Perhaps it’s the camera angle or ...
Yes, we are once again going to the dogs, a very popular and always welcome Photo of the Week ...
Last week Antonia and Georgia Lewin-LaFrance from Chester NS were named today Sail Canada’s Rolex ...
This week’s Photo of the Week comes from BC. The 99th Grey Creek Regatta was held at the Lakeview ...
Back in 2019 (I believe) your magazine used a pic of Sweet Love, a Ranger Tug 31, in a photo ...
a few shots of my wife Maggie practicing her silks routine on our 1982 C&C in the North Channel ...
Last issue, we took a look at boat names. Little did we know we would get what probably will be the ...

Marine Products

  • Prev
Plentiful drink holders have become expected amenities on today's boats but can be tricky to ...
January weather got you down? Dive into a Cruise guide (from Canada or down south) and get away ...
The need for onboard web connectivity has become commonplace—for both vessel systems and passengers ...
On January 4th, 2023, Mercury Marine introduced the Avator™ 7.5e electric outboard at the Consumer ...
The NEW edition of PORTS Cruising Guides: Lake Ontario and The 1000 Islands is available for ...
The fine folks at the Nautical Mind have been stocking their shelves and website with one thing – ...
The December issue of Canadian Yachting once again featured the magazine’s Annual Marine ...
The world of marine electronics is just on fire in terms of development. You can almost name ...
On the water, most people store mobile devices in safe but relatively inaccessible spots. This ...
Many consider a tender a utilitarian means to an end—mere transportation. Argos Nautic's RIB ...

News

  • Prev
David Howard passed way this week. He was the past commodore of the Royal Canadian Yacht Club and a ...
Earlier this month at the Consumer Electronics Show (CES) in Las Vegas, Brunswick Corporation ...
Le Boat announces plans to expand further into Ottawa for its 2023 season beginning May 19, 2023. ...
Boatbuilder, Aviator, Engineer, Entrepreneur, Husband, Father & Friend to many, Howard’s ...
BVI is the favorite cruising destination for many Canadian boaters but it’s always been a bit of a ...
The Maritime Museum of BC in Victoria has a Nautical Nights speaker night coming up featuring ...
On January 9th in New Orleans during ABYC’s Standards Week, the American Boat & Yacht Council ...
As of Tuesday,  Canada Ocean was in third place, racing Two-Handed on IMOCA 60 Canada ...
Everyone has gone digital including Volvo Penta. Under the headline ‘Boating for everyone’, Volvo ...
Engineered for an amazing day boating experience, the LS9 is perfect for creating lasting memories ...

Mercury marine V10 OutboardsOn November 15th 2022, Mercury Marine, a division of Brunswick Corporation (NYSE: BC), introduced the industry’s first ever V10 outboard with the official launch of its all-new 5.7L 350 and 400hp Verado® outboard engines.
 
Consistent with the award-winning Verado brand, the new V10 engines are the quietest and smoothest in their class running 45 percent quieter than a leading competitor at cruise. In addition to NVH, the new Verado’s are not only compatible with the latest Mercury SmartCraft® technologies but will also be offered with an optional dual-mode 48V/12V alternator to seamlessly pair with Navico Group’s Fathom® e-power system, an integrated lithium-ion auxiliary power management system, providing boaters the opportunity to eliminate an onboard generator system.

Read More