Atomic Is No Bomb - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance > Engines > Gas > Atomic 4
 Not a Member? 


Like Tree1Likes
  • 1 Post By sailnaway
Reply
 
LinkBack Thread Tools
  #1  
Old 04-07-2006
Senior Member
 
Join Date: Oct 2003
Posts: 399
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 11
sailnaway is on a distinguished road
Atomic Is No Bomb

I guess I am the only guy who loves this motor well me and Dom Moyer oh and Indigo Inc. This little gas motor is easy to maintain. It will take allot of abuse and keep you running. I have pushed my 22.000 LB boat for over 7000 KM in three years. I use it to power my inverter and watch movies because its quiet enough to do this. I do have to keep up with the points and all that because I am to cheep to buy the electronic ignition which is sold by Moyer and Indigo. My motor is fresh water cooled always was so it has a little longer life than some salt motors. For the gas worry I run the blower and sniff after a few seconds of running the blower if no raw gas smell then fire the puppy up. I also have the electric fuel pump and all the manuals which are as simple as the engine maybe 65 pages total. This motor was built from 1946-1979 with some being sold a little later. some where around 48.000 were built and many are still around. a rebuild will cost nearly $4000 from Moyer much less if you can do it yourself. All the parts are aftermarket and can be had easily. The company is now Universal and builds the small diesel which you can put in place of this ATOMIC if you want. I like this engine and do not plan to re power unless I loose a rod through the block or something. They all came with the Tranny attached which is also simple straight forward and a reduction in reverse. Never pass up a good boat because it has an Atomic you will be pleased at what you will learn from the ATOMIC 4 groups and die hard ATOMIC enthusiasts like me. Thanks to Don Moyer and Indigo for the fine products and service they offer. The ATOMIC is no BOMB.
srqsailor likes this.
Reply With Quote Share with Facebook
  #2  
Old 04-18-2006
Junior Member
 
Join Date: Apr 2006
Location: Gainesville, Ga
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Henry Stafford is on a distinguished road
Re: atomic4 no bomb

I have an atomic 4 in my 1974 Ericson 27'. The impeller went to pieces and overheated the engine (to the point of discoloration). I did not see the temp guage since it was mounted on the inside of the cabin on the instrument panel. So I added a panel in the cockpit, moved the gague, and added a tackometer. Before I could replace the impeller a leak developed in a hose an put the motor under water. I had a tech who had worked on atomic 4s get the engine working again. The engine starts as soon as you hit the switch and runs fine. It appears it can not be killed no matter what happens to it. My problem is that the steel gas tank has crap in the bottom (probably rust) and there is a Fram "special marine" gas filter (FBM1110-PLM) that I can't find a replacement for. I would like to replace the gas tank with a plastic one and replace the filter that sits between the tank and motor. Any suggestions?

Henry Stafford
Reply With Quote Share with Facebook
  #3  
Old 04-18-2006
Jim H's Avatar
Senior Member
 
Join Date: Feb 2006
Location: London, UK
Posts: 594
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
Jim H is on a distinguished road
Quote:
Originally Posted by Henry Stafford
My problem is that the steel gas tank has crap in the bottom (probably rust) and there is a Fram "special marine" gas filter (FBM1110-PLM) that I can't find a replacement for.
As for your filter, could this be it:

http://www.shipstore.com/SS/HTML/FRA/FRAFBM1110PLM.html

Note that the replacement filter is linked at the bottom of the page, and costs about $7.50.

Thanks for the stories about your Atomic 4 "surviving everything." I've only had mine a short while, but it runs really well and I hope that it's as bulletproof as yours.

Jim H
Reply With Quote Share with Facebook
  #4  
Old 05-25-2006
Junior Member
 
Join Date: May 2006
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
captainbrad is on a distinguished road
Yes, this is a great little engine. It's simple, quiet, easy to maintain, and everything is easy to get to (well, depending on your boat too I guess).

The impeller incident Henry writes about is not uncommon. Same thing happened on my dad's old Columbia 31. One fin of the impeller wedged itself in the cooling system and essentially stopped all water flow. It didn't sieze, but it did require a major overhaul. I remember as a kid having one winter with A4 parts spread all over the basement :-).

3 key things w/ A4 impellors:
1) Always carry at least one spare and know how to change it at sea. If you want to make it easy on yourself, get one of those aftermarket kits with the thumbscrews and the quick release cover.

2) Change it every spring religiously. Doesn't matter how much you used the boat last year, just change it. If you didn't use it much, keep the old one as a spare, but mark it with a tag as limited lifespan spare only.

3) Install a simple temp and oil pressure alarm. I found one at Boat US for under $20. Very easy to wire and install. Put the buzzer where you can hear it from the helm, and maybe wire a light to it as well. That way if the engine does begin to overheat, you'll know hopefully before any damage is done.

Othewise this is a great engine. I've got mine running so well that it'll idle at about 100 RPM IN GEAR!

This is always a good resource if you have questions or problems with your A4.

-BRad
Reply With Quote Share with Facebook
  #5  
Old 05-25-2006
Junior Member
 
Join Date: Oct 2004
Location: Annapolis Area
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
mschwarz is on a distinguished road
I'm another atomic fan! I have the Atomic 4 in a 1961 Pearson Triton (hull #229) that has been a work horse for many many years. Moyer rebuilt her in 2001 and the few upgrades that were added make her better than ever. We just put this '61 Pearson Triton up for sale due to our finally being able to afford something bigger, but we'll miss that dependable motor!
__________________
Mike Schwarz
Prior Owner of Beneteau 323 (#101)
(sold in 2007)

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #6  
Old 06-04-2006
Junior Member
 
Join Date: Jun 2006
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
russell32 is on a distinguished road
After some research, I decided to replace my Atomic four with another A-4 takeout. The mechanic doing the installation assures me the takeout is a good motor and it should bolt right in. People on the dock come by and offer advice and encouragement regarding the A-4. Wish me luck!!!
Reply With Quote Share with Facebook
  #7  
Old 07-16-2010
Junior Member
 
Join Date: Jul 2010
Location: Bellevue - Newport Yacht Basin
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
SeattleIanReilly is on a distinguished road
Send a message via Skype™ to SeattleIanReilly
Hi - My 1978 raw water cooled Atomic 4 has spent most of it's life in the salt. It now has a cracked head. Starts easily, runs rough. New coil, waterpumps, some other bits. I am curious how easy it is to determine if it is a good rebuild candidate. I have heard stories of ppl rebuilding them only to be destroyed shortly after by corrosion. compression ranged 95/105/108/113. Is there a way to inspect the guts/waterpassages without removing the block?
__________________
1978 Newport 27 in Bellevue / Seattle - Atomic 4 next door to 'house' boat
Reply With Quote Share with Facebook
  #8  
Old 07-17-2010
nightowle's Avatar
Senior Member
 
Join Date: Aug 2006
Posts: 226
Thanks: 1
Thanked 0 Times in 0 Posts
Rep Power: 9
nightowle is on a distinguished road
you can probably attach a new head. Why not repost your question under a new post to get more input rather than attached to this old thread? BTW - love my A4
__________________
________
S/V Don't Panic!
O'Day 27
Seattle, WA

“Navigare necesse est, vivere non est necesse” To Sail is vital, to live is not.
Reply With Quote Share with Facebook
  #9  
Old 10-21-2011
Junior Member
 
Join Date: Sep 2010
Posts: 14
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Hackettsan is on a distinguished road
Where can one find a replacement impellor and how simple is the install?
Reply With Quote Share with Facebook
  #10  
Old 10-21-2011
imagine2frolic's Avatar
Senior Member
 
Join Date: Aug 2008
Posts: 1,831
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 7
imagine2frolic is on a distinguished road
The pump is an Oberdaffer, and readily available. You can get tune up parts at places like Pep boys. It is the same engine on a million fork lifts, and parts are A/C Delco......i2f
__________________
20 MPH ain't fast unless, you do it in a 1000sq 3/2 house on 10foot waves
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


BORROWED, No single one of us is as smart as all of us!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Thermostat for Atomic IV owlmtn Gear & Maintenance 7 07-07-2010 07:06 AM
Atomic 4 fuel economy grumol Gear & Maintenance 6 12-05-2006 02:14 PM
water in crank case - Atomic 4 Reesser Gear & Maintenance 2 07-03-2005 08:52 AM
Atomic 4 replacement mr.fixit Gear & Maintenance 4 06-16-2005 04:48 PM
Atomic 4 Studs TerenceONeill Gear & Maintenance 2 04-06-2003 11:12 AM


All times are GMT -4. The time now is 06:14 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.