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  1. joey nathan

    Do I have Large Gear Case?

    '75 70HP 3cyl Evinrude Model 70573B - Prop thrust washer is missing and prop has been grinding into lower case. Thrust Washer for Johnson/Evinrude 318841 127084 is part listed with caveat that it's for large case; how do I tell? Shaft is 1" diameter Thanks for any help...
  2. joey nathan

    Pressure Relief Valve

    Someone enlighten me please. '75 70HP Evinrude - been sitting 5 years. I took it out for a fifteen minute shakedown the other day. Started, shifted, and ran fine! How's that, didn't even change plugs?! Just toodled around cove near boat ramp without ever going more than 1/3 throttle, just...
  3. joey nathan

    Pressure Treated Plywood

    Need to replace floor and one 2x4 stringer in my old boat. Question is, Can I use std 4x8 sheet of 1/2" treated plywood from Lowes? Will the resin, fiberglass cloth adhere to it well enough be water proof again? Where do you guys get marine plywood in the South/North Carolina area? Thanks...
  4. joey nathan

    Rack and Pinion Froze Up

    Hello All, New to boating hobby as I recently inherited 1975 fiberglass tri-hull. It's sorta rough but I'm taking it on as a long term project. Among various problems, I can't turn steering wheel. So I removed steering wheel and rack. Rack itself is not frozen. If I loosen steering cable...
  5. joey nathan

    Can I Retrofit Trim/Tilt Unit?

    I have a 16' Tri-Hull with 70 HP Evinrude. Both 1975 vintage. Where would I get a trim/tilt unit that would work? Does this require two batteries? Thanks in advance...
  6. joey nathan

    Can I Retrofit Trim/Tilt Unit?

    I have a 16' Tri-Hull with 70 HP Evinrude. Both 1975 vintage. Where would I get trim/tilt unit for same? Thanks...
  7. joey nathan

    Getting Dizzy

    Trying to nail down which water pump kit I need. Thought I had it, but on further review... Need kit for '75 70HP Evinrude 3 cylinder/3 carb engine. Confusing part is this large case, small case, loop-charged designation in many of the descriptions. I don't think I have any of these, and so...
  8. joey nathan

    Changing Water Pump

    1975 70HP Evinrude 3-Cylinder/3 Carburettor Can anyone give me a heads up on this procedure? Anything special I'll need other than the kit which includes the impeller and gaskets? Good news is the engine started right up today - been sitting for 5 years, runs like a top! Need new throttle...
  9. joey nathan

    Spark Plug Gap

    1975 70HP Evinrude - NGK BR9HS 10 plugs Thanks for the info...
  10. joey nathan

    '75 70HP Evinrude

    My control cables are frayed, no longer shift the transmission, and key is seized up too. Where can I go for replacement? Do these come in standard set-ups just based on the length, or what? It's on a 16 foot tri-hull so I'm guessing around 12 feet of cable needed. Thanks in advance...
  11. joey nathan

    75 Vintage Evinrude

    Sorry for rookie question, but what is proper fuel-oil ratio for 70 horse Evinrude; Model 70573 B? Are all older outboards the same in terms of this ratio? Thanks for the help...
  12. joey nathan

    Vari-Products / Hermann, MO

    Hello All, A newbie question as I'm considering a resto on this: I've inherited a 15 foot fiberglass tri-hull with this on the tag. Anyone recognize the brand or provide any history? I'm guessing it is 1970's vintage as it has a '75 Evinrude 70 horse. Still awaiting my aunt transfering...
  13. joey nathan

    Help: 35 Year Old Evinrude

    Gentleman, I'm sure this question has never been asked before! ha I'm "inheriting" an old tri-hull with 70 hp Evinrude outboard. Tag info: Model 705738 (8 could be a ?B?) and Serial Number J0006792. Listed as 56 cubic inches. Local boat guy here says don't waste your time - parts not...
  14. joey nathan

    Evinrude 70 HP Outboard

    Good morning all, New here so please forgive the rookie questions, but I'm inheriting an older fiberglass runabout with an E-Rude outboard motor. Model: 705738 and S/N: J0006792 are the numbers; and I'd like to obtain a service manual in an attempt to bring it back to life. Is this...
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