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    The 2024-2025 Fund Raising Season has Opened!

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    2024-2025 Fund Raising Info

atomic

  1. L

    Re-powering E27: replacing Atomic 4 with Yanmar YSB8

    Hello All My Atomic 4 seized and was recently taken out of 73 E27. I have a Yanmar one cylinder YSB8 diesel in good condition complete with transmission, exhaust, gauges, controls, etc. It was taken out of Hunter 27 years ago. The engine is in good shape and runs well. I am thinking of using it...
  2. F

    Atomic 4 water pump

    OK, now I have myself worried. I came here to see if I could find out information on finding an O-ring replacement for the water pump cover plate and have been seeing threads about the impeller shaft removal. As it turns out the shaft came out on me when I replaced the impeller. I had no idea...
  3. B

    atomic 4 to m15/4511 swap

    Any body know if a universal m15/4511 will fit into a ericson 27. It has a atomic 4 in there now. And will shaft size or prop be a problem. Thanks!
  4. I

    1974 Atomic 4 - 30 For Sale

    1974 Atomic 4 with direct drive transmission (reversing gear) pulled from an Ericson 35 in September in good running order. Have panel, 70 amp alternator, electric fuel pump etc. Engine not cleaned up but stored indoors. Located at Canoe Cove Marina in Sidney, BC. Asking $500 OBO. David...
  5. P

    SoCal Atomic 4 rebuild

    I have two opinions that leakage around one or more intake valve guides is causing the white smoke and filmy sheen coming out my exhaust and that I'll need a rebuild. While I'd like to go with Moyer, the shipping costs are hefty. There's a guy named Terry Brown in Huntington Beach who sells...
  6. H

    atomic 4 parts

    Hi Anyone know of a list of compatable parts for the A-4. Specificly looking for an exhaust flange gasket. I know Moyer Marine will sell me one for $3.00 but then the shipping cost is $12.00. I feel there must be a part out in the auto parts world that will fit and I can run down to...
  7. M

    No Forward with Atomic 4

    Sigh. My Atomic 4 (1984) is giving me a very curious problem. The engine stalls in forward. When it's cold it will run in forward for about a minute and then gradually depower and stall. When it's hot it stalls immediately. The motor runs fine in Neutral and in reverse. The problem...
  8. J

    Atomic 4 fuel consumption?

    A friend of mine has just become the new owner of a 1975 E-35 (Mk 1? Mk 11?) His name is Tony. He has not joined here yet (not a big computer/internet guy) but I am trying to get him joined up here as it is a fantastic resource, especially for a new owner. I went over to check the boat out...
  9. D

    Battery Switch E29 Atomic 4

    1. Can anyone verify whether or not you can switch batteries while the engine is running? I have a placard on my recently acquired boat that states "do not change batteries while engine is running". On a previous boat I used to start the engine with battery #1 and then switch to "both" so that...
  10. chtaylor

    San Diego Atomic 4 Mechanic?

    Does anyone know of a reasonable Atomic 4 mechanic in the San Diego Bay area? I've gotten tired of working on this engine more than sailing the boat. The last mechanic I contacted wants $90.00 per hour to change valve springs. Is that a reasonable rate? Thanks, Charles
  11. bigd14

    Atomic 4 Motor For Sale

    1972 Atomic 4 motor for sale out of my E27. When i hauled out one year ago, the motor was running great. It will need various bits of wiring and whatnot. Engine hour meter reads 993. I can deliver within 50 miles of Portland, OR, or can work out some kind of freight shipping. Send me a...
  12. S

    2 Atomic 4 engines for sale in Seattle

    Two late-model Atomic 4 sailboat engines for sale. Would be good candidates for rebuilds, or use for spare parts. One was running well but overheating when I removed it from my boat recently. $500 each, or $900 for both... Jeff
  13. S

    Atomic 4 with no reverse

    Hi all! I am a new E-29 owner with a nice, but old Atomic 4. Works great, starts great, hums along, but... When I shift into forward with the clutch, I get a satisfying, lite "thump" but when I do the same in reverse, I get no such sound from the clutch. I checked my cables, all seems...
  14. D

    Length of Gear Shift Cable for an atomic 4

    I own a 35-2; 1973; #288, and need to know the length of the transmission shift cable. I know it is a 4300 series cable, but do not know the length. Also is the secondary attachment end of the main body cable the same, or is one end different? I live in Angel Fire, New Mexico but my boat is in...
  15. C

    Draining the Atomic 4

    Well, the season has come to an end. This is my first year with the Ericson 29 and the Atomic 4 engine. Following the instructions for winter prep I started to drain the engine. I was able to get at 2 of the drain plugs but the 3rd one appears to be under the generator and without removing a lot...
  16. J

    Atomic four Prop

    the bronze prop is appx 12" a (sailor)double blade,from my old Atomic 4, righthanded turn was on 3/4" shaft- is available cheap.
  17. M

    E29 Atomic 4 Replacement

    I spend way too much time keeping the bomb running. Has anyone replaced the A4 with a diesel in a E29? If so, what engine fits in the tiny engine compartment? Thanks in advance Matt
  18. C

    Atomic 4 mechanic

    Anyone know of a good gas engine mechanic for the Atomic 4? Tacoma or Seattle area.
  19. J

    Rebuild of Atomic 4 and Dripless Packing

    As I mentioned in a different thread, I rebuilt an Atomic 4 (which I found fairly inexpensive, and it had freshwater cooling) and replaced the A4 that came in the boat. I should have taken more pictures along the way, but greasy hands dissuaded me from picking up the camera too often. When...
  20. T

    E-27 / Atomic 4 Engine Control Panel

    On my new (to me) 1976 E-27 no longer has readable labels (faded teak / no remaining paint). There is a ammeter, temp gauge, ignition keyhole, starter button, and choke - got those figured out, but there is also a toggle switch. Any ideas as to what that is, before I go tracing / reading out...
  21. JMS

    Atomic 4 mechanic in the Long Beach area?

    Project 1 in 288’s restoration. Any recommendations?
  22. J

    Seized bolt on Atomic 4

    Hello, Well i tackled the fuel tank installation this afternoon and of course it wasnt as easy as i thought it would be and in the process another issue has arisen with this neglected 32 yr old E27. I pulled the waterlift muffler to give myself more room to install the fuel tank (planned...
  23. J

    Atomic 4 Vapor lock

    I believe that I suffer from vapor lock. After motoring for extended periods when I downthrottle as I come into the harbor my engine dies and will not restart for 20 to 30 minutes. So what's the medicine???? John
  24. Q

    E-27 Atomic 4 oil change

    Heres a quick and hopefully easy question for you guys. How in the world do you change the oil on the Atomic 4 that was put in the ericson 27 (diagrams would be helpfull). Thanks.
  25. L

    E-29 Atomic 4 operating temp?

    Hey, My wife and I finally got our boat out of the slip yesterday, and I noticed the engine was running at about 200 degrees F, and it crept up to about 210. Is this normal? Does anyone know the normal operational temperature range for an E-29 Freshwater Cooled Atomic 4? We looked in the...
  26. G

    Atomic 4 Oil Change

    Is there no oil filter on the older (1973 vintage) A-4's? The manual I have says to just change the oil, drain and fill with 30W oil. I noticed Art Mullinax posted this same question last year and I didn't see a response. I found two drain plugs but no internal/external filter? No filter does...
  27. Luffin it

    Atomic Four alignment

    Thanks for the input on removing the engine. Before I pull it to replace the motor mounts and install the PSS shaft seal I thought it would help to get some input on the alignment once I put the motor back in. Is there a true way of doing this or is it more like eye balling. I can set up the new...
  28. N

    Cheap Atomic 4 in Boston on Craigslist

    I just saw this ad for a salvaged Bristol 29 on Boston's craigslist. It's got an Atomic 4 rebuilt by Moyer Marine in 2002. $2200 for the engine, $1500 for the whole boat including engine. (got a chainsaw? :D) Thought someone might be interested. Nate
  29. J

    Starting Atomic 4

    Ok Folks no laughing haha...k I am almost ready to put my new to me Ericson 27 into the water. I have never started the engine as the boat has been out of the water the entire time. The boat was started for the surveyor and he stated that it sounded fine to him. The problem I have is the boat...
  30. B

    Giving up on my Atomic 4

    Two straight years of virtually no sailing due to problems with my Atomic 4 have led me to conclude I need to replace it. I intend to put a 4 cycle outboard on the transom of my E27. Has anyone done this? Are there particular things I need to do, such as reinforce the fiberglas, location...
  31. M

    Diesel vs Atomic 4 noise

    Would a diesel replacement for an Atomic 4 be much noiser?
  32. E

    WANTED: E29 - wheel steering - Atomic 4

    WANTED: E29 in excellent condition - wheel steering - Atomic 4. Please email me at mkelly@visualmovement.com Thanks.
  33. F

    Speed Control Plate for 5432 Universal Atomic Diesel

    Hello, I have 1986 38' 200 with the 5432 Diesel above. I've broken the throttle bolt going through the speed plate, which is at the top of the govenor (I believe that's what it's called). I've ordered and received the new bolt and related parts for the repair. My question is has anyone...
  34. Luffin it

    Removing my Atomic Four

    I need some pointers on removing my motor. I purchased the O/H manual from Don Moyer, which is really worth having, but I did not see anything about removing the motor from the boat. I was going to re do my valves, which I had the two exhaust ones sticking. After removing the head, manifold...
  35. D

    atomic 4

    anyone know of a decent used atomic 4 engine that can be had. I am aware of Moyer Marine but was hoping to pay much less. thanks
  36. Q

    Atomic 4 clutch

    I was coming into the harbor this evening after a great afternoon of sailing but for some reason the shifter on our atomic 4 will not engage all of the way there by reducing speed and head way :esad: . Can any one point out he problem and is this a common problem with atomic 4s? The engine is...
  37. S

    Atomic 4 hand crank Mdl#5101

    Hello all, looking to buy a hand crank for a Atomic 4. Possibly buy a used Atomic 4 also. Anyone, anyone. Thanks, Wes Zimmerman E29 "SAILS CALL" :egrin:
  38. S

    E27 diesel replacement of Atomic 4

    Has anyone got a Diesel in an E27 and what model is it? I have an atomic 4 that sat full of water for a year until I recently bought it. 2 pistons were siezed and half the valves are rusted to the guides. The carb and air box are missing, and the piston rod ends are way too sloppy. It needs a...
  39. S

    Atomic 4 engine controls

    Would anyone know of a source for engine controls for my 1974 E32 Atomic 4. I was curious about using the Teleflex 2100 single lever dual action controls in place of the current setup. http://www.teleflexmorse.com/scripts/PDF/ch2100.pdf I am also currently trying to remove the...
  40. J

    Used Atomic 4 as is

    Used Atomic 4 for sail I have finally removed the original gas engine, and will post some images of it soon. According to the prior owner, the engine was running but needed some work. I had been thinking of a diesel replacement, and last spring obtained a diesel engine which is almost...
  41. G

    Replacing the Atomic 4

    I have a 1973 35-II and need to think about replacing the A4. Has anyone done a refit on this year and model and recommend which diesel to go with? So far it looks like the Universal M15 or M20 would be a good replacement. Did you have to replace the shaft and move up to a 1 inch dia? If I...
  42. N

    atomic 4 in E-27

    so i am restoring an old e-27, and originally thought about inboard diesel, until i saw the price. then i thought outboard on bracket. i did this, but i think it is terribly ugly and cumbersome (have to life bracket, 9.9 engine is close to 100lb, gas tank in cockpit) i have heard mixed reviews...
  43. R

    Atomic 4 cooling system flushing

    The coolant discharge from my raw-water cooled A-4 varies from good flow to weak. Moyer Marine suggested flushing the system with a 50% water-diluted muratic acid solution. The local yard recommended "Salt-Away" as a better and safer flush. Any inputs? Thanks, Ray.
  44. S

    Draining Oil from Atomic 4

    I have a 1977 E27 with an Atomic 4. I would like some tips on draining the oil. It appears that there are 3 options. 1) Pump out through the very small dip stick hole - problem is it would be a very small tube and be very time consuming. 2) Drain out from the lower front left drain hole -...
  45. W

    Atomic 4 Replacement

    WE HAVE AN ERICSON 29. THE ATOMIC 4 EITHER NEEDS TO BE REBUILT OR REPLACED. ANYONE, HAVE ANY ADVICE ON A REPLACEMENT DIESEL ENGINE? THE NEW ONES ARE PRETTY EXPENSIVE - DOES ANYONE KNOW OF ANY USED ONES?
  46. W

    Atomic 4 Replacement

    We have an Ericson 29 with the original Atomic 4 engine. It is not running and we either will have to rebuild it or replace it. Anyone, with advice on replacement with an Universal engine. Does anyone know if used ones are available?
  47. R

    Atomic 4 mechanic

    Can anyone recommend a good Atomic 4 mechanic in the San Pedro/Wilmington/Long Beach area? Thank you.
  48. A

    Atomic Engine Oil Level

    The oil level dip stick in my recently purchased boat (E-29) has a mark for "low" but nothing to indicate "full". I realize that the oil level will vary depending on the angle that the engine is installed at, but has anyone come up with a simple solution to this?
  49. Sean Engle

    Atomic 4 Info

    Check out this site called "Atomic Bomb" for Atomic 4 info: http://www.geocities.com/atomfour/ //sse
  50. wurzner

    Atomic 4 choke replacement cable?

    Can anyone point me to a good source for a replacement choke cable. The stainless varieties I've looked at are in the $100~120 range and that seems a little high. I found the information below at the website listed underneath. It appears that this is the replacement cable and was wondering if...
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