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Recent content by Markfla

  1. M

    Can a spun prop be intermittent?

    Wouldn’t spend someone else’s money, but we carry a spare prop and the couple tools to change it. I thought I had a similar problem and took the prop to a local rebuilder. They have a jig for testing the hubs.
  2. M

    1985 Evinrude 55 Commercial Powerhead

    Update. Tore my engine down over the weekend. Its terminal. Top connecting rod was starting to seize, piston smeared, case is cracked. So, the NOS bare case is out. I'm still working with South Central Outboards for one of their used engines. They are sure it is not a replacment for the 55. I...
  3. M

    1985 Evinrude 55 Commercial Powerhead

    Searching the parts diagrams from our host, looks like from 86 on the shift lever assembly is like the donor engines above part number 0396832. 1985 and earlier engines the shift lever assembly is part number 395544. The end that clamps to the lever and connects to the down rod is part number...
  4. M

    1985 Evinrude 55 Commercial Powerhead

    Update, I have talked with the front office and they are looking into if one of the dressed engines will work as a replacement. Originally as I suspected they are using a cross reference for a "bolt in" application, not my situation where I would be swapping all of my externals to the...
  5. M

    1985 Evinrude 55 Commercial Powerhead

    Would there be a difference in the bosses that support shaft 51 or is it the shaft itself? In other words could I swap my shaft over to the replacement power head. My shift rod from the lower unit has a special pin bolt that secures it to a linkage piece clamped to my shaft 51. Not sure what I...
  6. M

    1985 Evinrude 55 Commercial Powerhead

    If I have to chose cut the red wire or the black wire, it should be 50/50. My experience is 90/10 I picked the wrong wire. 95% is very good odds. I’m going to go old school and call them. Thanks for all the experience. 🤞
  7. M

    1985 Evinrude 55 Commercial Powerhead

    “Should” 100% sure would make me feel more comfortable. I’m surprised the company would say no. They are probably using a cross reference guide, not actual fitting different power heads up and they likely don’t want me calling and saying it did not work. They have a return policy. The appeal is...
  8. M

    1985 Evinrude 55 Commercial Powerhead

    Trying not to overthink it. The shifter arm? Are you refering to the cast bosses that support the connector to the down rod? I found a fresh water dressed power head on ebay. Comparing the pictures I took of my engine and the pictures they posted, it looks like this engine will work. I did...
  9. M

    1985 Evinrude 55 Commercial Powerhead

    My manual start assembly attaches to a boss on the power head and to what I would call the front cover that the carbs attach 2. The engines I’m finding don’t seem to have that provision since they are elec start. Swapping the front cover and flywheel is not a problem as long as the front covers...
  10. M

    1985 Evinrude 55 Commercial Powerhead

    By removing the peripherals I was able to shift the lower cowl and remove the last 2 side cover bolts. Lots of salt and corrosion, but no visible cracks into the exhaust port. The rest of the cooling system probably looks the same. So since I found the cracked casting I posted above, I’m...
  11. M

    1985 Evinrude 55 Commercial Powerhead

    Thank you both.
  12. M

    1985 Evinrude 55 Commercial Powerhead

    Lower unit is solid. Shifts fine and resealed it along with a new water pump last summer. What I meant is that an inch more clearance to the lower cowl or the ability to drop the cowl and you could easily remove the cooling jacket side cover bolts. Didn’t mean to imply it was unsatisfactory...
  13. M

    1985 Evinrude 55 Commercial Powerhead

    racerone, couldn’t sleep. Was thinking maybe the water jacket might have corroded enough that cooling water was leaking into the exhaust port and into the cylinder. I had put our smoke leak detector on the pee tube and was getting smoke out both spark plug hole, but then thought my test was...
  14. M

    1985 Evinrude 55 Commercial Powerhead

    Location South Florida. What would be the last year one of these alternate engines should fit? Driveshaft could be reused then? Ideally a donor would come from a fresh water area. Over 40 years even with flushing after every use, corrosion got pretty bad. Thank you for the information. Is there...
  15. M

    1985 Evinrude 55 Commercial Powerhead

    Hello, 39 years later after lots of TLC, I'm ready for a replacement power head or a new outboard. I know very little about outboards and what interchanges. My engine model is Evinrude E55RWLCOS Its a Commercial Engine, 2 cylinder 55hp and my understanding is it may have had a 70 lower unit in...
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