Recent content by jon705

  1. J

    1989 Evinrude E60TLCEA - tell tale not working

    Over the last month or so I rebuilt the powerhead on an Evinrude E60TLCEA. Bored .030 with new pistons. Everything else was in spec. After reinstalling the engine on the boat and firing up for a test the tell tale did not produce a stream. Took off the lower unit this morning and it looks...
  2. J

    4.3L OMC 14.25x21P 3blade - performance expectations

    Sticky: 1) Performance issue you are trying to correct. 2) Current prop manufacturer, model, aluminum or stainless as a minimum. 3) Current prop diameter and pitch (required). 4) Wide open throttle RPM and speed with an average load (very helpful) 5) Engine/drive make, model, year, and HP 6)...
  3. J

    4.3L cobra electric fuel pump cutting out

    As part of an engine replacement for my 1990 OMC cobra it was necessary to swap in an electric fuel pump as the replacement block did not have a cutout for the mechanical pump. When wiring I included a relay and oil pressure safety switch. The problem I'm encountering is that the engine will...
  4. J

    1990 4.3L cobra exhaust manifold replacements

    Looking to replace my existing batwing exhaust manifolds. Have seen the GLM and Osco brands. Both have 1991 & newer models. What's the difference pre-1991? Is there a difference in the manifold OMC vs Mercury or will this lower portion bolt to either? Is the only difference in the...
  5. J

    Alignment help needed

    Having trouble aligning the engine/coupler after an engine replacement. I have a 4.3L cobra on my 1990 SeaSwirl. Over the winter the block and heads froze and cracked which required a replacement. Rebuilt a 1991 S10 4.3L and swapped all the necessary marine parts on. Installed the engine on...
  6. J

    Milky oil that smells like gas - now 4.3L swap

    I have a 1990 OMC 4.3L cobra. Ran great last season. Winterized by the book. First time out on the water she idles fine but when throttling up she shakes and there's a knocking sound. Pulled the freeze plugs in the manifolds and nothing comes out. Shouldn't water come out? Not sure this is...
  7. J

    1990 4.3L Cobra - power steering cooler winterization

    Found out (the bad way) that the PO didn't winterize everything properly. The power steering cooler developed a pinhole leak which was interesting to track down. I first noticed the bilge (very slowly) filling with water on our first trip out but only when the engine was running. Back at home...
  8. J

    Advice on used boat purchase - Renken/Seaswirl

    After selling our first little speed boat a few weeks ago my family and I have been looking to upgrade to a cuddy cabin and have narrowed the list down to two. One is a 1988 Rinken and the other is a 1990 Seaswirl. Both have similar pluses like solid floors, vinyl in great shape, mechanical...
  9. J

    Trading old for older - 1966 Evinrude Sportsman

    My wife thinks I'm half crazy (she hasn't told me but I can tell) because of the recent trade I'm considering. I have a 1983 Sea Raider with a 1967 Johnson 100HP outboard on it. Mechanically she's in good shape...but not at all pretty and a bit small for my family. The fiberglass is dull but...
  10. J

    1974 Tilt and Trim Rebuild

    I have a tilt and trim unit that was removed from a 1974 Johnson 85HP and am trying to finally put it to use. The lines were not connected when I got this so I'm having a time trying to find where everything goes. The schematics available online do not look like what I have. Here are the...
  11. J

    1967 Johnson 100HP chugging at full throttle

    Well we've taken the boat out a couple times now after working on this outboard. She runs pretty smooth at idle and slow speeds but when I try to hit WOT she chugs. I've done the link and synch so at WOT butterflies on the carbs are wide open. I've cleaned the carb several times and I don't...
  12. J

    1967 Johnson 100HP - throttle cable length

    Hi all, So the 'ol girl is running ok now but throttle position has two problems: 1) When pushing fully forward on the remote control the cable at the motor will not fully extend throttle linkage to WOT and 2) When returning remote control back to neutral the cable will not return the motor...
  13. J

    1967 100HP Johnson impeller #

    Can anyone confirm that Sierra part number 377992 is correct for a 1967 Johnson 100HP outboard? Thanks,
  14. J

    Evinrude vs Johnson shop manual

    I have a 1967 Johnson 100HP outboard. Bought a Seloc manual for it last year and I'm tired of the lack of help that it provides. Looked at ebay for an official shop manual and there is not one for a Johnson. However, there is a shop manual for a 100HP 1967 Evinrude. Is the only difference in...
  15. J

    15.5' fiberglass 60HP OB: enough power?

    The question's been asked in many different combinations of boat sizes/types and HP but I thought I'd ask anyway and seek some much needed advice. I'm finishing up my first project boat, a 15.5' fiberglass open bow, and looking for the outboard to power it. The boat can handle up to 100HP...
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