Tilt Worm Drive Not Working

[K Numan]

Hi I have a problem with my tilt.The motor is working fine but it doesnt seem to be engaging the gears the teeth look ok to me (Not that that means anything) Can these be fixed or are they throw away jobs.

Cheers Karl

 

[etracer68]

Re: Tilt Worm Drive Not Working

What drive do you have? More info needed.

 

[billbayliner]

Re: Tilt Worm Drive Not Working

The relay box changes on these from the earlier ones, but I believe they all basically function the same.
There is a clutch inside and one part of this is cast iron.
The micro switch at the top prevents over travel of the vice rod. Be sure to not operate the motor without the micro switch function or you will break this cast iron part.
If this part is broken it will prevent any action against the threads of the vice rod.

The part is the upper section of #5 here.

 

[K Numan]

Re: Tilt Worm Drive Not Working

Hi again thanks for the quick responses.As for the type of leg to be honest im not sure.I thought it was a 290 duo prop but after reading a few threads on here im not to sure now I started thinking maybe a 270 if thats possible ive looked for numbers on the leg but cant fin any anywhere it appears to be pretty old though yet still runs like a dream I believe it was reconditioned just before I bought the boat which was almost a year ago.it is attached to a 350 chev crate motor which is a 2008 model and on a 7 metre Smuggler its a great boat just has this problem now after sitting for the winter im I thought it may have seized after sitting but all appears free in there.I had the motor off and noticed the nut on the bottom was only finger tight and wonder if that could be the problem even though it did feel tight.Im from New Zealand guys so our fishing season is just getting under way would be great to have it working.

Cheers Karl

 

[wes_d]

Re: Tilt Worm Drive Not Working

Item #4 above is used to adjust the clutch by compressing spring item 19. However, if it's like my tilt unit it will be extremely stuck and next to impossible to turn.

On my tilt unit, item 18 was slightly bent and stuck. No matter how tightly I adjusted the clutch, I couldn't move 18. I ended up buying another item 18 on eBay.

I had a really hard time removing the tilt unit from my boat until I made a spacer (a 25 mm OD tube filled with lead) that I inserted between item 8 and the outdrive and used the outdrive as a hammer to pound out the tilt unit.

If all else fails, you don't need the tilt unit to go fishing! Use a gaff to lever the tilt lock open and pull up on the outdrive and tie it off. I used a bolt hanger on the outdrive, bolted thru the trim tab bolt

http://www.amazon.com/Coeur-10-Bolt-Hanger-Petzl/dp/B000T29R26

as a handy place to hook an S-hook with a cord to pull the outdrive up.

Wes

 

[kmarine]

Re: Tilt Worm Drive Not Working

I have had this exact problemb. the worm drive had corroded resulting in the clutch allowing the motor to spin without screw travel. I had to remove the trim jack and rebuild it clean and grease screw jack pares and re install. I think it took me about 2 hours and went rather easily with the help of pb blaster penitrating oil to losten the rust. you may want to check and replace o rings if necessary this may be why it corroded.

 

[billbayliner]

Re: Tilt Worm Drive Not Working

Yes, #18 is the double Allen type thread vice rod. If bent, it will cause problems.
The upper portion of #5 is one half of the clutch unit. The other half is the brass ring gear (#6) that the worm screw operates.
The spring pressure pushes these two clutch parts together.
To increase the spring pressure, you can adjust the top cover (#4) or be creative and shim under or above the spring.

A good working unit should allow you push the drive down when it's up, and not fall down under normal conditions.
Baring that the vice rod is not bent (#18), if the electric motor spins freely with no lift action, you have a worm drive problem (#6), or the cast iron clutch component threads are broken off.
Also check the little roll pin in the motor shaft.

 

[K Numan]

Re: Tilt Worm Drive Not Working

Thanks for all the responses guys I still havent been able to get it going.Was wondering how hard it should be to take the whole unit out I have undone the 2 bolts holding it in place but it seems stuck pretty hard.I also had someone say the bearings may be had it which is possible because when I take it apart the balls fall out of their little casing could that be causing the problem.I have also found some numbers on the leg if anyone can tell me what type of leg it is would be much appreciated.284 then im not sure if it is a 5 then 487 so 2845487 and it is a duo prop.

Cheers Karl

 

[mikekay77]

Re: Tilt Worm Drive Not Working

Thanks for all the responses guys I still havent been able to get it going.Was wondering how hard it should be to take the whole unit out I have undone the 2 bolts holding it in place but it seems stuck pretty hard.I also had someone say the bearings may be had it which is possible because when I take it apart the balls fall out of their little casing could that be causing the problem.I have also found some numbers on the leg if anyone can tell me what type of leg it is would be much appreciated.284 then im not sure if it is a 5 then 487 so 2845487 and it is a duo prop.

Cheers Karl

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hi guys i recently bought this boat off Karl, pulled the tilt motor out and discoverd the worm was stripped and buggered, so i gave it to my very clever engineer mate who spun me up a new worm drive on his lathe. now works mint and is going fine. but if ever happens again will be replacing with hydraulic ram type unless can think of easier way to modify a new system. p.s is a 280 dp unit


cheers

mike