1980 Evinrude 35hp 2cyl running problems

Discussion in 'Outboards' started by liki, Jun 4, 2011.

  1. liki
    Joined: Nov 2008
    Posts: 221
    Likes: 12, Points: 18, Legacy Rep: 114
    Location: Finland

    liki Senior Member

    So far I have only had time to confirm that I have a problem with either the bellcrank or gearbox. Adjusting the cable helped a lot but didn't solve the problem. After reading the repair manual and checking spare gear prices I am now hunting for a suitable gear box from a salvage yard or an used VRO outboard 30-40hp.

    But I'll keep you updated, I just cannot know when I'll find time for this.
     
  2. liki
    Joined: Nov 2008
    Posts: 221
    Likes: 12, Points: 18, Legacy Rep: 114
    Location: Finland

    liki Senior Member

    Having had no luck finding an used lower unit, it's now time to start servicing ours. I re-read the service manual and realized that the operation was easier than I anticipated, as long as the bearings requiring special tools do not have to be renewed.

    But acquiring two +20" long 1/4" UNF threaded rods to pull out the bearing carrier turned out to impossible here in metric world, placed an order into US for them. :/ If they(McMaster-Carr) are not willing to deliver, it seem's that I'll have to buy some round bar and a thread tool. (Or use the local OMC shop where I cannot succeed myself.)
     
  3. powerabout
    Joined: Nov 2007
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    Location: Melbourne/Singapore/Italy

    powerabout Senior Member

    visit a catapillar dealer if you have one, huge range of sae threaded stuff
    you could order the 2 bolts from your OMC dealer??
     
  4. liki
    Joined: Nov 2008
    Posts: 221
    Likes: 12, Points: 18, Legacy Rep: 114
    Location: Finland

    liki Senior Member

    Anyone able to answer would a gear case assembly from 1994 15" 20hp model fit? Water pump line, impeller housing, drive shaft and screws seem to have different part numbers, but I was suggested that the newer lower unit would fit by just boring its screw holes a step larger.

    ... Well, got the malfunctioning transmission disengaged. And found a local repair shop willing to give their old stock paint away and loan tools. :)
     
  5. thudpucker
    Joined: Jul 2007
    Posts: 885
    Likes: 31, Points: 0, Legacy Rep: 453
    Location: Al.

    thudpucker Senior Member

    I got an answer to a similar question from two sources.
    One was the dealer parts guy who looked up part numbers for me.
    On a Vehicle, a Wrecking yard guy had a cross ref book.
     
  6. pistnbroke
    Joined: Jan 2009
    Posts: 1,404
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    Location: Noosa.Australia where god kissed the earth.

    pistnbroke I try

    only way for an answer is iboats.com in the evindrude section and wait till one of the experts comes along to answer
     
  7. thudpucker
    Joined: Jul 2007
    Posts: 885
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    Location: Al.

    thudpucker Senior Member

    another real good place is <marineengine.com>
    You get a lot more action there.
     
  8. pistnbroke
    Joined: Jan 2009
    Posts: 1,404
    Likes: 33, Points: 0, Legacy Rep: 404
    Location: Noosa.Australia where god kissed the earth.

    pistnbroke I try

    Thudplucker ..tried marineengine.com and its very quiet about 20% of the posts of iboats.com and the people answering are newbies ..so not very impressed...will stick with i boats ..I post in Chrysler outboards under Fucawi as pistnbroke was taken
     

  9. liki
    Joined: Nov 2008
    Posts: 221
    Likes: 12, Points: 18, Legacy Rep: 114
    Location: Finland

    liki Senior Member

    I am seem to be with luck. Aside from the fact that newer lower unit seems to have 5mm shorter drive shaft, one step larger holes for mounting screws and more reduction - Maybe 2,2:1 against 1,8:1 - it seems to be a bolt-on replacement.

    With the larger reduction a new 10x15 prop could be perfect - Hope as alternatives with larger diameter or more pitch are not available. :)
     
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