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atomic 4
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  1. Gas
    Here's my situation: Boat is powered by the mighty Atomic 4 which, of course, runs on gas not diesel. Said gas is in an aluminum tank under the settee. There is an approx. 3" hole in the top of the tank for the sender of the fuel gauge; the plate holding the sender is shown in the attached...
  2. Atomic 4
    I recently purchased a 1968 tartan 34c that needs a total and complete never ending refit.. and I'm ok with that... I need to figure out if the repower moyer marine model is worth fixing vs repower and need a little help. anyone have an atomic 4 mechanic in the tampa area?
  3. Gear & Maintenance
    We purchased a 1978 P31 last fall. It had a mystery problem with the engine so the price we paid was a steal. We had work done on it over the winter and thought we had it licked. Turns out, after a breakdown on our way home in June, that the engine needs to be pulled to be repaired (Fractured...
  4. Electrical Systems & Solar
    I have an Atomic 4 engine, and I think my alternator is on it's last legs. The amp meter only goes up to about 12.7 when the engine is on. I'm told that it should go up to 13.5-14. I was told I should take it out and bring it to "pep-boys", or some other auto parts store where they can check...
  5. Atomic 4
    Hello, I just completed the assembly of my A4 after an overhaul. I am ready to attempt my first start after the rebuild and wanted to get some tips/pointers from the Sailnet community. One question, I am looking for a manual oil pressure gauge to install for tuning...any suggestions...
  6. General Discussion - Sailing Related
    Hello, I have a 1964 islander 32 with an atomic 4. I just finished replacing the gas tank. ( fiberglass and ethanol don't mix well,) I also rember plumed all my fuel lines. Now I have to prime the system. I k.ow the best way to do it is with a primer bulb. The question is should I install one...
  7. Atomic 4
    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...
  8. Atomic 4
    Hi Everyone, I am new to the forum, I have used atomic 4 parts and I am located in San Diego County. Used Parts - Reverse Gear - Reverse gear housing -oil pan - exhaust manifold - flywheel -flywheel housing and cover - exhaust elbow -crossover tube (old style) -valve cover -accessory drive...
  9. General Discussion - Sailing Related
    I purchased a Cat27 last summer and am hooked. She has an Atomic 4 that runs like a horse. Last weekend as i was headed back into port (under power at top speed) the boat suddenly lost a lot of speed and the motor got loud, the boat also started to shake. I throttled back on the gas and ran...
  10. Irwin
    We are the new owners of a Irwin 28.5, 1974. Was a free boat that will now require more $ and time. It has not been sailed in at least 2 years. Bottom job is a given and will done soon. I have drained 18 gallons of gas from the tank, put in new plugs, cleaned the filter, new batteries and will...
  11. Atomic 4
    Been having engine trouble and just was "informed" by the marina that I have lost close to half of the compression in all 4 cylinders. They were pretty vague about the possible causes and related repair costs. They did warn about sinking too much $ trying to trouble shoot. Any body have any...
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