OMC Tilt Motor Clutch Pak Removal

[bdnwtkfg]

Question regarding CLUTCH PAK REMOVAL in a 1984 Sea Swirl w/ I/O 3.5 OMC

This is my 1st time doing this and there is very little info out there....

I will be replacing the seal due to water in the oil...(see picts)

1. does the out drive need to be supported to remove the outer gear? I know its a good idea from a safety stand point but is it necessary?

2. Once gear is off, is it just a matter of sliding the pack out or does the retainer bearing (outer 3 bolt cover) need to be removed 1st?

Thanks!
Big Dave
Orange County CA.

 

[ggrace boater]

Re: OMC Tilt Motor Clutch Pak Removal

I just did this, its not hard. I'm not a guru so I don't want to say much but I can say this. Watch the videos on you tube. They will show you the order of every piece, and give you a better understanding.

 

[ggrace boater]

Re: OMC Tilt Motor Clutch Pak Removal

The outdrive will need to be supported because this holds it up. In the picture you posted you can see a c-clip. You will need to remove that c-clip and a clip on the other end of that shaft. At that point you can remove the clutches, steels, shaft, gear. After you get the clutches out, the ring gear should come out and then you can remove the worm gear if you feel like it. Its pretty self explanatory after you watch the video and understand the set up.

 

[Boomyal]

Re: OMC Tilt Motor Clutch Pak Removal

One day YouTube might not be there, then I think that our society will collapse. What on earth would we do without it?:facepalm:

 

[ggrace boater]

Re: OMC Tilt Motor Clutch Pak Removal

One day YouTube might not be there, then I think that our society will collapse. What on earth would we do without it?:facepalm:

Technology sure does help, that's for sure. I'm still printing maps and driving directions off of map quest, but my grandfather is ahead of me, with gps on his smart phone, that speaks to him, telling him when to turn. I don't have that because I don't want to pay for it yet.

 

[monster91]

Re: OMC Tilt Motor Clutch Pak Removal

how do you know if you're springs are worn? My out drive lifts 4 inches and seems like it has no more juice mean while its a brand new battery

 

[southkogs]

Re: OMC Tilt Motor Clutch Pak Removal

how do you know if you're springs are worn? My out drive lifts 4 inches and seems like it has no more juice mean while its a brand new battery

I think I'd be looking at the other end of your system, especially if it's lowering well. I'm wondering what kind of shape your motor is in.

 

[monster91]

Re: OMC Tilt Motor Clutch Pak Removal

,the motor seems really good? Its a sierra and both ways work pretty strong when there is no load

 

[Boomyal]

Re: OMC Tilt Motor Clutch Pak Removal

,the motor seems really good? Its a sierra and both ways work pretty strong when there is no load

With all due respect, that is a horrible way to assess the capability of your tilt motor. A fan motor works strong with no load on it, but put a load on it and will just stall out. The tilt motor has to develop sufficient torque to move a load at its heaviest point. The first four inches of the outdrive movement or running the motor on the bench is no test of that capability.

I assume being that you know the brand of your tilt motor, that you must have purchased it recently. How much did it cost? Capable tilt motors cost about double what you can get some motors for; and there is a good reason why. I am not familiar with what Sierra sells. The good tilt motors are made by Prestolite and will develop a minimum of 27 in/lbs of torque at 120 amps. If yours is not doing that, it ain't gonna lift the leg!

The fact that you have zeroed in on your clutch does not make it your problem. I described, above, the part that the clutch plays in raising or holding your outdrive up.

 

[monster91]

Re: OMC Tilt Motor Clutch Pak Removal

Ok so I just bought the boat, its been on land for 7 years and now I am just trying to slowly comb through everything and make sure its all good and reliable.
Through ripping my tilt mechanism apart and doing random tests I pulled out the tilt motor and saw the brand sticker still on it.(sierra) Can I use my amp jaw on my meter to test the amperage coming into the motor? Would the amperage spike if not enough torque was created?

 

[Boomyal]

Re: OMC Tilt Motor Clutch Pak Removal

..... Would the amperage spike if not enough torque was created?.....

I would assume that if your motor was in perfect shape but just not built to develop the required torque, that the amperage would spike while it was stalling out. However the factory diagnosis descriptions assume that you are working with an OEM tilt motor. They state that if you have low (insufficient torque and a low current reading that the issue is due to high resistance in the internal connections or the brush contacts.

If you have insufficient torque and a high current reading, the issue is a faulty armature or field windings.

Please do not hold me to this but I believe that the Sierra motor is one of the budget motors that is notoriously incapable of doing the job required. If you google around and find that Sierra motor around the $100 mark, that is what it is. Remember, Prestolite is the real deal and they are somewhere around the $200 mark.

Other issues that could stall your up tilt would be trunnions that are corroded and stiff OR trunions that have been knocked out of alignment. The factory had a tool that you would bolt into the trunnions, using the caps, to determine if they were square. However based on the fact that with a little assistance, your drive will lift all the way up, I doubt this is your issue. None the less, you do want to make sure that your trunnions are greased.

 

[monster91]

Re: OMC Tilt Motor Clutch Pak Removal

Excellent, I will do those amperage test.. the motor inside had a lot of resistance in the form of surface rust all over inside, I sanded it with emery cloth. I'm thinking I'm going to buy that motor you recomended at the very least I'll have a sierra backup

Thanks

 

[monster91]

Re: OMC Tilt Motor Clutch Pak Removal

Power Tilt Motor for OMC Sterndrive Cobra 382138 380361 382220, MES T1085M, Prestolite ETK 4001 4101 4102 - Sierra 18-6754 - iboats

Is that a real prestolite? I can't find one that actually says prestolite do you have any leads as to where I can buy one?

 

[monster91]

Re: OMC Tilt Motor Clutch Pak Removal

Boat Tilt Motor OMC 382138, Prestolite ETK 4102, ETK 4001, ETK 4101

I think this is the real deal ?

 

[Boomyal]

Re: OMC Tilt Motor Clutch Pak Removal

Power Tilt Motor for OMC Sterndrive Cobra 382138 380361 382220, MES T1085M, Prestolite ETK 4001 4101 4102 - Sierra 18-6754 - iboats

Is that a real prestolite? I can't find one that actually says prestolite do you have any leads as to where I can buy one?

Yeah, I can make a call tomorrow. Both of those ads look like the same thing even though there is a big difference in price. Neither of them state clearly that they are Prestolite. It is like they make reference to the fact that they are a replacement for prestolite motors.

I'll find out tomorrow.

 

[Tydog96]

Re: OMC Tilt Motor Clutch Pak Removal

Any recommendations to the best built tilt motor for the OMC 800?. Wants replace mine, and overhaul the rest of with grease instead of oil, etc. I'm tired of help it up. I need some omc tilt Viagra.

 

[southkogs]

Re: OMC Tilt Motor Clutch Pak Removal

Any recommendations to the best built tilt motor for the OMC 800?. Wants replace mine, and overhaul the rest of with grease instead of oil, etc. I'm tired of help it up. I need some omc tilt Viagra.

Welcome aboard tydog.

Best bet in the future for ya' is to start a new thread. It'll probably get you better results.

Can you have the current motor rebuilt? I had mine done at local shop for very little money, and had spectacular results outta' it.

 

[Nivekt]

Re: OMC Tilt Motor Clutch Pak Removal

The original unit was made by Prestolite I believe and those are the best out there. Lots of bad talk about the Sierra ones not having enough torque and burning out quickly. ARCO makes them as well but I dont know anything about those. I suggest buying a good used original Prestolite unit or having yours rebuilt by a reputable shop that will use quality parts. Original part number is 382138 so use that when searching around.

 

[Kparm]

Where can I get parts for the tilt motor clutch assy.? I think all the inners are past there prime and need replaced. It will go down with no problem, getting it to come back up is the :nono: part. I feel that it is binding.