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  Topic Review (Newest First)
1 Week Ago 11:49 AM
travlin-easy
Re: $6,600 to rebuild Atomic 4? replace/rebuild

Ben, I was thinking the same thing when I purchased Saturday's Child, my Morgan 33 Out Island. When I approached my son and daughter about them taking the boat when I take the dirt nap, they said they didn't want it. My son owns a 25 foot powerboat and my daughter is physically handicapped and cannot handle the boat by herself. My son said he will sell the boat when I pass away and give the money to my wife.

At 76 with bad lungs and a busted up back, I'm not sure how many years of sailing I have remaining, but I intend to push it as long as I can physically do so.

My boat is powered with a Moyer rebuild that was refurbished in 2001 and it still runs great.

Good luck,

Gary
1 Week Ago 12:14 AM
Capn Ben
Re: $6,600 to rebuild Atomic 4? replace/rebuild

Well at 68 I have no aspirations of sailing for another 50 years...
I just paid my engine maintenance forward. INNUENDO is a good old boat, and I have spent the past year refurbishing her.
'Looking to get lots of stressless cruising on her, for the forseeable future.
She will be a good boat for my son, later.

Fair winds!
1 Week Ago 11:48 PM
travlin-easy
Re: $6,600 to rebuild Atomic 4? replace/rebuild

Well, now you can run another 50 years on the new engine if you take good care of it.

All the best,

Gary
1 Week Ago 11:36 PM
Capn Ben
Re: $6,600 to rebuild Atomic 4? replace/rebuild

Here is my new Atomic 4, purchased this week from Moyer Marit (Moyer Marine Atomic 4 Engine Rebuilding and Parts)

It will be installed in my 1973 Catalina 27 as soon as the weather breaks, here in Maryland.

Exchange Engine, complete $6075.00, less $700 refund for core engine.
1 Week Ago 11:27 PM
Capn Ben
Re: $6,600 to rebuild Atomic 4? replace/rebuild

Quote:
Originally Posted by simmonct View Post
I just received a quote to rebuild the Atomic 4 motor on my 1979 C&C 34. I was shocked at the $6,640 price tag for this job and I asked them to hold off on the repairs while I consider alternative options.

During haul-out this season, it was noticed by the yard crew that the motor was creating knocking sound and I ordered the engine be pulled from the boat for inspection. A few weeks later I received a diagnosis of the problem...here is what they said:

"There was a bad connecting rod that was causing the banging. Also the cylinders are worn out and need to be bored out and larger pistons & rings installed. Along with a bad exhaust valves, bearings and valve guides."

They are suggesting a total engine rebuild. I am concerned that the value of the boat does not warrant such an investment and was hoping to get some feedback from the SailNet community.

The engine needs some work, I understand that, but is a rebuild my best option? I plan on selling the boat in about 3 years for an upgrade, but I can't use/sell the boat with a compromised engine.

Questions:
-Do I ask them to repair the connecting rods and handle the minor repairs myself?
-Do a full rebuild?
-Go all in and do a diesel swap? (hoping that I can extract 50% value when I sell)
-Look online for rebuild motor and have yard install?

Any insight, thoughts, words of wisdom, etc... would be appreciated. Thanks for reading!

-Chris
I just purchased a complete engine in brand new condition from Moyer Marine. $6075 less $700 core charge refund for my old Atomic 4 engine from my 1973 Catalina 27.

I made the trip from Glen Burnie, MD to their machine shop in PA.

The engine is emaculate.
12-30-2016 11:03 AM
travlin-easy
Re: $6,600 to rebuild Atomic 4? replace/rebuild

If I had a choice from the jump....I choose the Yanmar. Let's face it....something to be said about not worrying about fumes blowing us up


In reality, the chances of blowing up because you have a gasoline engine onboard is probably less than blowing up because you have a propane stove onboard. Keep in mind that 99 percent of all the recreational boats in the US are gasoline powered, and most of the explosions take place as the result of doing something stupid while refueling, such as leaving the engine running, or not turning on the bilge blower before restarting the engine. According to the last boat US report I read about marina fires, they were the result of an electrical problem, or someone placing a heater onboard in a bad location.

Now, I was watching Deadliest Catch on the Discover channel a few months ago and one of the boats experienced a cracked fuel injector line, which triggered the explosive gas alarm. The diesel fumes were so thick that the mechanic had to wear a respirator and hazmat suit in order to get to the shut off valve and facilitate the repairs. They also had to use a special, sparkless fan to evacuate the fumes from the engine room. Fires aboard diesel-powered commercial fishing boats are not at all uncommon, and there have been many resultant explosions.

Another source of boat explosions is the result of shorted batteries that are on chargers or being charged while underway with the alternator. I experienced this first hand while fishing at the Marquesses Keys many years ago. At the time, I owned an 18-foot Starcraft Mariner, center console fishing boat powered with a 75 HP Johnson outboard. The battery was housed in a compartment beneath the transom well and accessed via a sliding door. That was also where all the electrical connections were made on an open terminal block and the relay for the power tilt and trim was housed. Apparently, the battery developed a shorted cell, thus causing the alternator to overcharge the remaining cells and produce a large quantity of explosive gasses. The explosion occurred when I activated the power trim as I entered the flats near Boca Grande Key. The blast blew the sliding door completely off the transom, sounded like a grenade going off and scared the hell out of the other two anglers in the boat as well as myself. Fortunately, we were in the company of another boat that had a spare battery that allowed up to clean the boat up and get back to Key West.

For many years, I've written about and advocated an automatic bilge blower than must be activated for at least three minutes before the ignition switch can become operable - just makes sense. I have also been a big proponent of constant ventilation in the battery compartment when the batteries are under charge, either at the dock or while underway.

Good luck,

Gary
12-29-2016 08:29 PM
Capt Len
Re: $6,600 to rebuild Atomic 4? replace/rebuild

So, 7 pages and nobody has mentioned anything about stelite and installing new seats in old engine. Not the usual back yard job so figure the expense in proper rebuilding
12-29-2016 08:02 PM
chef2sail
Re: $6,600 to rebuild Atomic 4? replace/rebuild

Quote:
Originally Posted by travlin-easy View Post
My A4 was rebuilt by Moyer in 2001, still runs like a Swiss watch, so quiet that most folks cannot hear the engine when we are down to idle speeds. And, not only is gasoline significantly less expensive than diesel in this part of the country, but less dirt. My diesel friends change fuel filters several times a year and those filters are nearly plugged each time. I changed my gas filter three years ago and while I carry three spares onboard, I think I will likely get another three years out of the filter before it needs changing. Plus 1 on Moyer's rebuilds! They do a great job and the prices, while high, are not nearly as high as a similar size diesel rebuild.

Now, one thing that every A4 user should know. There is a product out there called Marvel Mystery Oil, which keeps these old engines running forever and really works well in reducing wear and improving valve seating. I know there are skeptics on this site when it comes to this product, but those of us that are A4 owners and users swear by this stuff, and so does the folks at Moyer Marine. You will find the product at most auto parts stores in the US.

Good luck,

Gary
I had an A4 for many years on my first boat , an Islander 28. Was a great engine , reliable , easy to fix. Moyer was a great resource. As Gary said...champion of gas engines. I certainly had a love relationship with my old one.

So we have had for many years now had a Yanmar Diesel. It's the little engine that could. Clean fuel, easy to change the filters, easy to work on, no smell. Great mileage Very reliable. Mac Boring also a good resource.

If I had a choice from the jump....I choose the Yanmar. Let's face it....something to be said about not worrying about fumes blowing us up
12-27-2016 08:03 PM
travlin-easy
Re: $6,600 to rebuild Atomic 4? replace/rebuild

My A4 was rebuilt by Moyer in 2001, still runs like a Swiss watch, so quiet that most folks cannot hear the engine when we are down to idle speeds. And, not only is gasoline significantly less expensive than diesel in this part of the country, but less dirt. My diesel friends change fuel filters several times a year and those filters are nearly plugged each time. I changed my gas filter three years ago and while I carry three spares onboard, I think I will likely get another three years out of the filter before it needs changing. Plus 1 on Moyer's rebuilds! They do a great job and the prices, while high, are not nearly as high as a similar size diesel rebuild.

Now, one thing that every A4 user should know. There is a product out there called Marvel Mystery Oil, which keeps these old engines running forever and really works well in reducing wear and improving valve seating. I know there are skeptics on this site when it comes to this product, but those of us that are A4 owners and users swear by this stuff, and so does the folks at Moyer Marine. You will find the product at most auto parts stores in the US.


Good luck,

Gary
12-27-2016 05:58 PM
hransom
Re: $6,600 to rebuild Atomic 4? replace/rebuild

I have a great A4 for sail,,oil seals and bearing replaced 300 hour ago, I am changing the boat to diesel {got 1 for free} at this time I am changing out hoses and toching up paint. Call henry at 860-836-9797 if interested
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