Buy Evinrude Outboard Parts

Announcement

Collapse
No announcement yet.

1991 OMC Quiet Rider 115 got HOT!

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • 1991 OMC Quiet Rider 115 got HOT!

    Engine Model V115SLEIE. Where do I start? One owner boat I purchased that looked great but the motor had been cooked. I've removed Exhaust covers, heads, thermostats, water pump, power packs and coils. Power pack harness adjacent to heads are melted, coils show some melting, water pump impeller is intact but shows signs of melting. The water pump housing started to melt and flow into p***ages. Head gaskets and water cover gaskets are cooked. Thermostat housing has brown sand like residue and one thermostat is stuck open. The portside exhaust filler block is cracked and missing a chuck that I found when I removed the gearbox. 2 bolts where missing and the starboard side exhaust filler block bolts where loose. As well as many head bolts and water cover bolts where loose.

    I've been told by a Dealer that the filler blocks can be replaced but the engine block needs to be decked and requires dis***embling the power head completely to perform this machining. I'm not sure this time and money is necessary. The motor turns over fine and the cylinders look and feel fine the the pistons have a little lateral movement which I understand is normal. Can I replace the filler blocks without decking? Can I remove the filler blocks? If so, what are the trade-offs? HP loss? Lean operation? Performance issues? Thanks for listening to this rambling. Any advice would be greatly appreciated.

  • #2
    Do to the amount of damage, you should have the block decked, plained and pressure tested (test for cracks). Sounds like a substantial amount of time and money.
    Regards
    Boats.net
    Evinrude Outboard Parts

    Comment


    • #3
      I know the early 115 (Flat backs) did not have the exhaust fillers blocks and there are many opinions from the Dealer to other boat motor repair people who thought I could remove the exhaust filler blocks with the following results:
      1) It would run like a 90 hp
      2) Reduced back pressure resulting in it running lean, then having to jet the carburetor
      3) No loss in power but increased noise
      4) The motor could over heat without the filler

      Is it worth a shot at ***embling the motor without the filler blocks. Any help would be greatly appreciated.

      Comment

      Working...
      X