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Thread: Holman & Moody 289 Up and Running After Rebuild...

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  1. #1
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    Holman & Moody 289 Up and Running After Rebuild...

    Well, Here it is! It's running great now. It was starting right up but it must have been camera shy this time. Think I had a little heatsoak or the choke needs a minor adjustment. We'll see. Anyway, Almost ready for some lake action. Just have a few other tidbits to button up.
    Enjoy!
    Adam

    P.S. The camera audio doesn't do it justice. Sounds like it's got a knock but it doesn't. The cam is pretty wild in this thing. I'll have to profile it soon.

    [media]http://www.youtube.com/watch?v=TF5hT8lvMbA[/media]
    Boats are cheap if you do all the work yourself.
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    next time tilt your outdrive down.Why black? What custom thermo housing is that? sounds good to me.
    Ted Kennedy's car has killed more people than my guns.

    1972 Allmand twin H/M
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  3. #3
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    congrats that's a big step. you might want to look at a perko flush valve . it makes running on the hose much easier, it gets cut into the water intake line between the pump and the drive and has a hose connection. hopefully I'll be at same point this weekend. the thermo housing looks like the normal HM housing
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    Quote Originally Posted by mattyboy View Post
    congrats that's a big step. you might want to look at a perko flush valve . it makes running on the hose much easier, it gets cut into the water intake line between the pump and the drive and has a hose connection. hopefully I'll be at same point this weekend. the thermo housing looks like the normal HM housing
    +1 on the flush valve. Very easy to operate and you don't starve the motor of any water pressure.

    I'm thinking the "knocking" similarity in the sound on the video is just because it's from one side of the boat. The Ford firing order makes it seem like there's a big delay if you just look/listen to one pipe.

    Congrats on the rebuild. Glad to see another 289 H&M still out there running strong! Very cool motor.
    1970 18 Classic-original

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    Quote Originally Posted by vrod02 View Post
    Why black? What custom thermo housing is that? sounds good to me.
    Why not? Once you go black, you never go back!

    It's a HM housing.

    Thanks!

    Quote Originally Posted by mattyboy View Post
    congrats that's a big step. you might want to look at a perko flush valve . it makes running on the hose much easier, it gets cut into the water intake line between the pump and the drive and has a hose connection. hopefully I'll be at same point this weekend. the thermo housing looks like the normal HM housing
    Perko flush valve on order!! Thanks!

    Good luck with yours!

    Quote Originally Posted by Donzi Vol View Post
    I'm thinking the "knocking" similarity in the sound on the video is just because it's from one side of the boat. The Ford firing order makes it seem like there's a big delay if you just look/listen to one pipe.
    Congrats on the rebuild. Glad to see another 289 H&M still out there running strong! Very cool motor.
    Thanks! I like it. Yeah, I think the Ford firing order is messing with me.
    Boats are cheap if you do all the work yourself.
    Gas.... Not so much...


  6. #6
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    next time tilt your outdrive down.
    Why? It sucks up more water with it up than down. No reason to put it in gear so, I don't get it....
    Boats are cheap if you do all the work yourself.
    Gas.... Not so much...


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    +2 on the drive up that high, the Ujoints are working at an extreme angle not good. All manufacturers now including Volvo have trim limit switches to avoid damaging the Ujoints, upper housing seal and bearing.
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    Semi retired marine tech over 50 years in the biz.

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    Ah! Okay, that makes complete sense. I'm a newb when it comes to stern drives and how they work. Totally forgot the shaft with the U joints is direct drive to the engine. DUH! I keep thinking there should be a clutch back there, LOL.

    Question. Can I lube those U joints by simply loosening the bands on the flex boot and access them or do I have to remove the sterndrive?

    Also, I found out my prop is a cupped 14 3/8" X 21, Is that pretty good for a 289?

    Thanks!
    Adam
    Boats are cheap if you do all the work yourself.
    Gas.... Not so much...


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    sounds good.

    you may want to look into flappers before you watertest. you should be close to 300 HP. you wont find many with HM logs pushing any more.

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