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  1. jimmbo

    Mercury 50 hp, no power at prop, engine runs fine.

    A Merc doesn't have a Shear Pin to shear, as it has a Splined Propshaft and Prop Hub. It might have a Prop that has a Sacrificial Hub, and it has shattered. Or it could have a Prop with a Sheared Rubber Hub. Take the Prop off and look
  2. jimmbo

    High compression in 1 cylinder - 7.4 carb

    I don't think it is Cam Lobe Issue. Lightening the Pics does show some Goop on the Head, Exhaust Valve area is drier, likely cause it is hotter. Pull the Head, and pull the Intake Valve out, likely a bad/missing Valve Seal
  3. jimmbo

    18 horsepower 1969 evinrude

    Was this motor used in Salt Water, very muddy Water, prop churning the bottom?
  4. jimmbo

    18 horsepower 1969 evinrude

    160 is still too hot
  5. jimmbo

    What type fuel hose?

    The Canadian Government is actually too far Right of Center for my Liking.
  6. jimmbo

    What type fuel hose?

    canukistan?
  7. jimmbo

    Johnson 90hp flywheel bad?

    That Upper is priced at about $400(us)
  8. jimmbo

    18 horsepower 1969 evinrude

    Was there any water being discharged out the Idle Relief?
  9. jimmbo

    Johnson 90hp flywheel bad?

    It is a 2 Stroke, of a Design that does not have a Camshaft(2 Stroke Diesels do) No Special Tools are needed. And the Crankcase has to be split to get at the Crankshaft. However, unless it is the Center Bearing, the Upper and Lower Bearing are serviceable, with out splitting the Case It a 1985...
  10. jimmbo

    What type fuel hose?

    Gee, My car(s) have more than enough Power to exceed the Speed limit by very wide Margin(one even has a Speedometer that goes up to 260mph), but rarely if ever is that power drawn upon I can certainly Ignore you
  11. jimmbo

    What type fuel hose?

    Laws are different in my Country, it actually has no regulations against putting an Engine of more Horsepower. Dealers have rigged boats rated for 90hp, with 200hp.
  12. jimmbo

    What make fitting is this?

    Yrs ago Merc used a couple of different sized sets of Connectors that were very good, then they switched to the problematic style similar to OMCs, which are always leaking Fuel, or sucking Air in.
  13. jimmbo

    Older Johnson, serial number on the welch plug ?

    Post few Pictures of it, there are a few on here that are pretty good at Cowl Graphics
  14. jimmbo

    Propless?

    WOT Range for Engines of that Era, is likely 3700-4200 I think that Engine was about 215hp Edit: "(No Outdrives on the boat when I got it )" Did the Outdrives at least come with the Boat-Motor?
  15. jimmbo

    Johnson 90hp flywheel bad?

    Yeah, Damn it. Put the GD # next to the center Bearing...
  16. jimmbo

    Johnson 90hp flywheel bad?

    You forgot about the Center Crankshaft Bearing #s 15,18, and 23
  17. jimmbo

    Everything done but low rpm at WOT. Distributor spring?

    Carb Throats would be larger, likely hurting Holeshot
  18. jimmbo

    What type fuel hose?

    I overpowered a few Boats, but I always informed the Insurance Company that, in Writing and also had them Acknowledge they were accepting that, in Writing.
  19. jimmbo

    What type fuel hose?

    I suspect a lot of posters here have never had to deal with an Insurance Company when a boat has a fire... If any part that needs USCG Cert, doesn't have it, kiss your claim goodbye
  20. jimmbo

    XR 4 Hydrofoil

    A big Block is what your boat needs.
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