1977 OMC 235 tilt won't work

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FirefighterTom

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I am in need of some help. I have a 1977 OMC 235 inboard motor with a tilt that won't work. I changed out the tilt motor and took apart the clutch and cleaned everything. When I try to raise or lower the motor nothing happens. Can anyone help me? Thanks for any information.
 

Bondo

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Re: 1977 OMC 235 tilt won't work

I am in need of some help. I have a 1977 OMC 235 inboard motor with a tilt that won't work. I changed out the tilt motor and took apart the clutch and cleaned everything. When I try to raise or lower the motor nothing happens. Can anyone help me? Thanks for any information.

Ayuh,.... Welcome Aboard Tom,.... Did ya bench test the replacement motor,..??

Is it gettin' Power,..?? a test light or multimeter is pretty much a Must have item...
 

FirefighterTom

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Re: 1977 OMC 235 tilt won't work

Yes I did bench test the motor and it works and it's getting power.
 

boobie

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Re: 1977 OMC 235 tilt won't work

When you hit the tilt switch can you hear any clicks, grunts or anything ??
 

FirefighterTom

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Re: 1977 OMC 235 tilt won't work

I can hear the solenoid working(clicking)...The worm drive and all gears are in good condition
 

jhcon65

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Re: 1977 OMC 235 tilt won't work

If you haven't already done it , you may want to check the sticky section , I know I've found a lot of really great info there its at the top of the threads , I'm new here , and had the same prob .... It's all about using your DMM and test test test
 

Nivekt

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Re: 1977 OMC 235 tilt won't work

When you resealed the clutch pack, did you make sure to use two shims(gaskets) and not tighten the bolts on the cover down too tight? If you over tighten those 4 bolts, you can bind the clutch pack.
 

southkogs

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Re: 1977 OMC 235 tilt won't work

With the tilt motor off, and the hammer coupling out - can you turn the worm gear shaft (flat tipped screwdriver'll do) and see the tilt gear turn outside the intermediate housing (you'll probably need to support the sterndrive and remove the tilt quadrant)?
 

boobie

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Re: 1977 OMC 235 tilt won't work

Do you have any power coming out of the solenoids going to the tilt mtr ??
 

Boomyal

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Re: 1977 OMC 235 tilt won't work

Do you have any power coming out of the solenoids going to the tilt mtr ??

Great question! I just had a Merc tilt pump solenoid that 'clicked' when activated but there was no juice coming out the other side. I tore the solenoid apart and every thing looked pretty good. I cleaned the contacts and still no juice. I took it apart again and chucked up the armature, applied some coarse valve grinding compound and lapped it in to the field contacts. I put it back together and Voila! It worked.

Mind you, this was a lot of effort for a 26$ solenoid but I wanted to see what made it tick.
 

boobie

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Re: 1977 OMC 235 tilt won't work

Good Job!! That's the way mechanics did things yrs ago rather than just replacing parts.
 

Twitch_6969

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I’m having the same problem mines a 77 with the 351 Windsor replaced the tilt motor won’t go up or down bench tested it didn’t spin
 

achris

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I’m having the same problem mines a 77 with the 351 Windsor replaced the tilt motor won’t go up or down bench tested it didn’t spin

Please don't post to threads more than 90 days old (forum rules). And if you have a new questions, please start a thread of your own, and not hi-jack someone else's.

Chris.
iboats mod team.
 

GA_Boater

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I’m having the same problem mines a 77 with the 351 Windsor replaced the tilt motor won’t go up or down bench tested it didn’t spin

This thread is 8 years old. Start a thread of your own,

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