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  1. #1
    Join Date
    Jul 2010
    Location
    crystal river, Florida
    Posts
    13

    shop says i need a new timer base, what do you think?

    motor will idle and Rev in a hose . in the water it will idle but it stalls when you put it in gear . here' s a
    few details .
    - 1986 evinrude 140
    - carbs rebuilt
    - 125 Psi compression on all 4 cyl
    - new champion plugs
    - timing set to 18 degrees
    - new fuel filter and fresh gas
    - seafoam decarb
    - link Ans sync .
    the timing was 8 degrees off , and I adjusted it to spec.
    I got fed up and took it to a shop . the mechanic tells me that the timer base is bad , and its $ 240 plus
    labor. if the timer base was bad , would the motor run? would I have been able to adjust the timing? I
    want to make sure I' m not throwing $ 300+ down the drain for his guess .

  2. #2
    Mine idled with a bad timer base but wouldn't get on plane. Changed timer base, all is good! Surely you can find a used one in your area to try.

  3. #3
    Join Date
    Jul 2010
    Location
    crystal river, Florida
    Posts
    13
    thank you. I haven't tried eBay. I don't mind paying for the factory part, just want to be sure it needs replaced.

  4. #4
    If you have a DVA adapter (or have access to one) you can check all the electrics. An ohm meter will check the timer base and all the info/instructions are on the CDI Troubleshooting website.

    http://www.cdielectronics.com/downlo...oting%20guide/

    Kaase Outboard Hydro/Bottle Fed 300 Drag

  5. #5
    Join Date
    Oct 2001
    Location
    *************************************
    Posts
    15,488
    it will idle but it stalls when you put it in gear
    Crank it in gear then!!!

  6. #6
    The first thing that was not done on your list was the timing pointer, setting it to TDC. Testing the timer base with the proper tools should verify it is bad. That being said there is another condition that can cause your symptoms. If it has been overheated and or scuffed piston skirts. This condition will still give you good compression tests but no power at idle or just off idle.

  7. #7
    Join Date
    Aug 2007
    Location
    Ft. Lauderdale, Fl
    Posts
    7,368
    another thing that should be done also is to check the spark. A bad timer base will cause one or more cylinders to lose spark..... A bad stator will cause one or both banks to lose spark and a bad power pack can cause all kinds of havoc
    "One of the penalties for refusing to participate in politics is that you end up being governed by your inferiors". Plato .

  8. #8
    Quote Originally Posted by flabum1017 View Post
    another thing that should be done also is to check the spark. A bad timer base will cause one or more cylinders to lose spark..... A bad stator will cause one or both banks to lose spark and a bad power pack can cause all kinds of havoc
    I'm going to keep this bit of advice, it makes perfect sense. Thank you!

  9. #9
    Join Date
    Jul 2010
    Location
    crystal river, Florida
    Posts
    13
    thanks everyone for the replies. the Guy I bought the engine from gave me a locked up powerhead today with all the electronics and carburetors for free. now its time to tinker. if it doesn't run correctly by Sunday evening I'm gonna sink it. lol

  10. #10
    Join Date
    Aug 2007
    Location
    Ft. Lauderdale, Fl
    Posts
    7,368
    When you have the flywheel off, check the magnets, be sure they are still attached and not broken. Those flywheels have a history of having the magnets come loose. Also, do not use a hammer in removing the flywheel.... using a hammer will loosen the magnets for sure.
    "One of the penalties for refusing to participate in politics is that you end up being governed by your inferiors". Plato .

  11. #11
    Join Date
    Jul 2010
    Location
    crystal river, Florida
    Posts
    13
    timer base didn't fix anything. still has no power at all in the water. bogs and falls on its face under throttle. good spark, fuel, and compression still on all 4 cylinders.

  12. #12
    Join Date
    Sep 2002
    Location
    Lakeland,Fla
    Posts
    2,503
    I would take it back to the shop that worked on it then, they obviously didnt diagnose the issue properly.
    Fellow G-Man of the Sunshine Syndicate-Dixie Wrecked Chaptor..
    We Put The F. U. in FUN
    1992 21ft Paramount center console Z250 Yamaha
    2006 Mustang GT, with a belt driven air cleaner
    www.FantaSeamarine.com

  13. #13
    Join Date
    Aug 2007
    Location
    Ft. Lauderdale, Fl
    Posts
    7,368
    That motor has a shift switch on it on the shift lever on the motor, if the shift cable isn't adjusted proerly or the shift shaft is binding, it will knock out 2 cylinders..... quick test is to disconnect the shift switch ......
    "One of the penalties for refusing to participate in politics is that you end up being governed by your inferiors". Plato .

  14. #14
    Join Date
    Oct 2001
    Location
    *************************************
    Posts
    15,488
    Does it have a shift switch? Can't find one in the on line parts catalog.

  15. #15
    Join Date
    Sep 2002
    Location
    Lakeland,Fla
    Posts
    2,503
    I dont remember them having one either
    Fellow G-Man of the Sunshine Syndicate-Dixie Wrecked Chaptor..
    We Put The F. U. in FUN
    1992 21ft Paramount center console Z250 Yamaha
    2006 Mustang GT, with a belt driven air cleaner
    www.FantaSeamarine.com

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