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  1. drobertsobx

    1989 Evinrude 88SPL (E88MSLCER) Cooling

    Are you referring to the 2 short channels?
  2. drobertsobx

    1989 Evinrude 88SPL (E88MSLCER) Cooling

    I am looking at the head, I see no way for water to get into the cover. Head with gasket and bolts cover not on top of it... That cover is isolated from the water that comes from the top flows around the cylinders and exits to the thermostats in the head. Again talking cover not head.
  3. drobertsobx

    1989 Evinrude 88SPL (E88MSLCER) Cooling

    Cover with bolts in place, book shows all bolts as seen...
  4. drobertsobx

    1989 Evinrude 88SPL (E88MSLCER) Cooling

    No That's the head in the picture(block side down), the water is isolated to the channels around the cylinders by the gasket. Every hole in that gasket is for a bolt or the overheat sensor. In my mind if they wanted water in there the gasket would be something like this...
  5. drobertsobx

    1989 Evinrude 88SPL (E88MSLCER) Cooling

    I guess if you say so, I still don't see how any water could get to those channels. The only holes are the bolt holes and the holes for the spark plugs. That means once it is bolted down those channels are on solid gasket between the 2 sets of three bolts. Pic of the head with gasket now on...
  6. drobertsobx

    1989 Evinrude 88SPL (E88MSLCER) Cooling

    Here's a pic of the top of the head with the gasket in place, with the cover inverted to show the channels that are against the gasket, they look designed to carry water to me, but no idea. Second pic is one of the covers packed with crud.
  7. drobertsobx

    1989 Evinrude 88SPL (E88MSLCER) Cooling

    No I know that, water flow through the head didn't confuse me... I'm talking about the water jacket cover, It was totally caked with crud in the channels, like 80%, I assumed it was from water flow and little clearance between the gasket and the cover, there wasn't enough gasket material left to...
  8. drobertsobx

    1989 Evinrude 88SPL (E88MSLCER) Cooling

    OK, I have to admit I am stupefied... When I took the water jacket covers off they were caked with salt lime calcium whatever... I've spent the last couple days descaling everything and inspecting for damage (1 jacket cover was beyond repair)... I just was dry fitting the gaskets to be sure...
  9. drobertsobx

    1989 Evinrude 88SPL (E88MSLCER) PTT

    Took apart both trim cylinders today, looked like a combination of transmission fluid and trim fluid that came out. Flushed it all out rebuilt both cylinders (what I took out looked as good as the new rings and seals) refilled with trim fluid, works good now.
  10. drobertsobx

    1989 Evinrude 88SPL (E88MSLCER) Cooling

    The red Led light I put in series with the horn worked perfectly while testing the new thermostats for leaks. I did not hear the alarm but immediately saw the light on the dash from the engine.
  11. drobertsobx

    1989 Evinrude 88SPL (E88MSLCER) Cooling

    Sorry forgot to mention I ordered a gallon of Rydlyme for the descaling... I was going to soak everything for 4 hours after brushing everything I could reach with brushes, 50/50 mix. Then brush and perhaps soak again if they don't look clean. The heads don't show any signs of salt caking just a...
  12. drobertsobx

    1989 Evinrude 88SPL (E88MSLCER) Cooling

    Well, I was finally able to get back to the overheat issue... Pulled the heads and the head covers... It was shocking to say the least, the head covers were completely caked with salt. The heads seem to have clear passages, everything checked for warpage nothing found. Am I safe to assume that...
  13. drobertsobx

    1989 Evinrude 88SPL (E88MSLCER) PTT

    Thanks for the info Watched your video and several others, the guy at the site said he would be willing to send both tools and I can return the one that isn't the right size so that's cool. He also said it sounds like the plastic ring may have **** the bed and is causing the excess friction...
  14. drobertsobx

    1989 Evinrude 88SPL (E88MSLCER) PTT

    I found the leak I think... no O-ring in the fill screw, wasn't seeing it because I had not cleaned up the unit from the fill, so each time I put it way up for thunderstorms ( as last night) it was leaking out a little. That's how the original owner kept it for 16 months so I am assuming it just...
  15. drobertsobx

    1989 Evinrude 88SPL (E88MSLCER) PTT

    I found the leak I think... no O-ring in the fill screw, wasn't seeing it because I had not cleaned up the unit from the fill, so each time I put it way up for thunderstorms ( as last night) it was leaking out a little. That's how the original owner kept it for 16 months so I am assuming it just...
  16. drobertsobx

    1989 Evinrude 88SPL (E88MSLCER) PTT

    Found another weird problem with the motor. This concerns the PTT unit. The tilt function seems to work as expected. The trim unit has an issue. When switching from tilt to trim function the unit is extremely noticeably slow and stalls halfway through the full limit... kind of spins it wheels...
  17. drobertsobx

    1989 Evinrude 88SPL (E88MSLCER) Cooling

    in case anyone else needed the answer... I discovered the Overheat thermistors operate as a grounding signal. At the ignition switch the buzzer has power when in run or start via purple wires. The brown wire completes a ground on the buzzer via the overheat senders on the brown wire at the...
  18. drobertsobx

    1989 Evinrude 88 SPL (E88MSLCER) Thermostat assembly

    Hi, I just got the thermostat kit for the motor. I am attempting to put it back together. I have 2 round cork gaskets that were not found when taking the assembly apart. The thermostats in the existing housing were held into the side with the indent with silicone I assume(most of it was...
  19. drobertsobx

    1989 Evinrude 88SPL (E88MSLCER) Cooling

    Got one more quick question... The double purple wires that run from the switch to the buzzer... Can I add another ring terminal and wire to this circuit and run it to an LED light to serve as a visual cue to an overheat issue (Old age loosing hearing and sight lol) I tried catching voltage...
  20. drobertsobx

    1989 Evinrude 88SPL (E88MSLCER) Cooling

    Thank you very much for your help on this. I am starting to suspect his (prev owner) tinkering on the ignition switch did just that, power to the Yellow/Black-Ground... I can't say for certain but with mag glasses on it looks like a burn on the m connector screw from the hot red next door...
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