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  1. 9

    Serial / Model Number Lookup

    I'm trying to decipher the MOD# of my 1990 Evinrude 150 and cannot figure out the codes. Is there a definitive ref out there somewhere? MOD# VE150SLESB Thanks!
  2. 9

    Power Trim Relays

    One of my relays on the power trim motor is bad. I looked on iboats and found the pump motors but don't see the relays listed. Anyone have a source? Thanks! Steve
  3. 9

    Delco HEI-EST distributor

    My 3.0 has a Delco HEI-EST distributor. I can't find any mention of these in the Merc #10 manual. Is there a different manual that covers these and is there any difference in the firing order. Thanks! Steve
  4. 9

    3.0 Mercruiser Bad Starter?

    Put a new starter on in the spring and it worked fine. Then the boat sat all season long while I was "vacationing" in Afghanistan. Charged the battery and tried it yesterday but only got a click. Motor is NOT frozen and I have rotated it by hand. Battery might not have been fully charged and...
  5. 9

    3.0 Exhaust question

    I've got cooling water and exhaust coming from ports at the bottom of the gimbal ring underneath the outdrive. I thought the exhaust was through the propeller. Do I have a problem? Thanks!
  6. 9

    She's a RUNNER!

    Bought in Dec as a project. Engine was seized and had water (fresh) down through the carb into one cyl. Its spring time in Florida and everything's starting to heat up around here, including my 3.0. It took this long cus I'm a slow worker but got it started for the first time today and wanted...
  7. 9

    3.0 electrical connections

    Guess I need some help on this. My 87 mercruiser 3.0 is all back together and I'm ready to start it but not sure if I have the electrical connections right. I can crank the motor with the starter but have nothing on the volt meter gauge, although I haven't checked the gauge itself yet. Plus...
  8. 9

    3.0 Mercruiser valve identification

    Finally getting around to adjusting my valve train on an 86 mercruiser 3.0 4 cyl. I've got the correct procedures from a previous post and hate to ask a stupid question but,... I guess I'm confused about whic valves are intake and which are exhaust. If I'm the front of the motor looking at #1...
  9. 9

    3.0 Rocker Arm Install

    Reinstalling the rocker arms on my 3.0 mercruiser after having the head reconditioned and I'm confused on the torque settings. The manual says to torque them to 20 ftlbs but they don't get near 20 until they bottom out on the stud. Is that what I should be doing, cranking them all the way down...
  10. 9

    3.0 Negative Battery Cable Connection

    This is a stupid question, but ... Can anyone tell me where the negative battery cable connection on the engine is? Thanks!
  11. 9

    3.0 MerCarb float Level question

    Rebuilding the carb and am confused on the float level settings. I have the factory manual which says the level should be 14mm if the needle is the spring type, 10mm otherwise. 14 seems way too high, especially since the float drop is dead on at 27mm. If I adjust the level, the drop will be...
  12. 9

    Cleaning the Fuel Tank

    Rebuilt the carb, dipped and cleaned the manifold, so now I'm working on the rest of the fuel system. I removed the tank today, a 24 gal aluminum box with plenty of redish gunk in the bottom. What's the best way to clean it? Am I crazy to consider sprayin it out with a garden hose, as long as...
  13. 9

    Mercruiser 3.0 Riser

    Not sure if I need a new one. I REALLY trust the machine shop I've been working with and they told me the riser looked fine after inspecting it. But, I pulled a lot of flakey rust out of it and I'm just worried its too thin. Are there any nunbers on wall thickness or any other measure I can...
  14. 9

    Mercruiser 140 Rebuild

    HURRAY!! I get to rebuild a motor! Actually, I'm looking forward to the project. I've posted the story of my "new" boat under "How to rotate mercruiser 3.0 manually" and am now to the stage where I'm doing the engine work. Haven't stripped the block down yet but I'm working on the head, carb...
  15. 9

    How to rotate mercruiser 3.0 manually

    New to the board... Not new to boats. I'm trying to bring a 1987 Mercruiser 3.0 back to life. It hasn't run in at least two years and the engine did have water in it. Not sure how bad it is. I want to remove the plugs and rotate the engine manually but don't see an easy way to do it. Do I...
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