Bad Lower Unit

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  #1  
Old 07-27-01, 07:42 AM
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I have an OMC inboard outboard. I believe the lower unit is out. When in gear it will not go. You cannot turn prop in gear. This is an 85 model. It began making a rattling sound before stopping. I hate to say it but it was out of grease in the upper portion of the lower unit.I would like to get a little feed back on my problem and where I can get a good shop manuel. It has been several years since I've worked on outboards. Thanks for any help and or tips anyone can give me.
Robertk
 
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  #2  
Old 07-28-01, 09:25 PM
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Well if you burnt up the gears the oil would stink pretty
bad. A manual is pretty easily found at marine shops
or on line. try Sealoc or Clymer books.
If you need any parts i can give you some names too.
Get the drive off and lets see what you have left to work with.
 
  #3  
Old 07-29-01, 08:22 AM
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Thanks BoatMech for the reply. I have ordered the Clymer manual. The unit had a bad smell, but it was more of a sewer smell, as if it had been in there for a long time, like stagnant water. Is there any thing I can do before removing lower unit to be sure it is shot? Thanks

Robertk
 
  #4  
Old 08-02-01, 10:35 PM
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Not much more you can do since you know its "locked up"
You could drain it and refill it with some used
motor oil i guess to pickle it from getting any worse
since it will be a while before you get it apart.
Drain both the upper and lower gearcases.
Hopefully no water will be found.
scott
 
  #5  
Old 08-03-01, 06:45 AM
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I filled it with new gear lube(didn't help).In Your opinion what do you think I will have to replace? After studying the situation I am not sure I want to tackle it. It wouldn't have been too bad 25 yrs ago but I'm 70 now and am having second thoughts on trying to fix it myself. What is a reasonable price to have this done? Do you think that the bottom lower unit is okay, being it had plenty of grease? Also the ball gears are worn and I would like to have them replaced also.I would like to find a good independant mechanic, but may have to go to the dealer. I am in Waco,Tx. Thanks in advance for any help.

Robertk
 
  #6  
Old 08-03-01, 08:05 PM
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Why dont you try to get a rebuilt upper unit from one of those outdrive exchange outfits. Ive heard there are a lot
of them in the south, Fla in particular. The Factory
on occaision uses them to do their reman stuff.
if i come across a name Ill pass it along.
I would give you a hand but im in CA.
You can replace the intermidiate ball gear and slap it together, Im hoping the lower is ok.
scott
 
  #7  
Old 08-04-01, 09:13 PM
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I would like to find a replacement if possible. I tore it down and the main gear is gone. I am going to replace the ball gears while I am in there. Have you any idea what a rebuilt unit sells for. If the bearings and all are shot, I got a price of about $800.00. I also need a power lift motor. It went out while on vacation and I pulled it off and cleaned it up and made 2 weeks, but it is acting up again. I was thinking of getting it rebuilt but wondering if they can waterproof it at a regular electric shop. If you can find a link let me know. I found one but the wanted around $1800.00. Thanks Robertk
 
  #8  
Old 08-05-01, 11:32 PM
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Let me get this straight, 8 hundred for a rebuilt
upper, good.
one hundred eighty for a new tilt motor, good.
Not eighteen hundred ok, and yes it can be rebuilt
and no it does not need to be waterproofed.
if properly rebuilt it will still meet USCG
ignition protection safety standards.
If you are worried, paint it with liquid neoprene
after you install it.
 
  #9  
Old 08-06-01, 06:43 PM
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I put it in the shop today. It will be a couple of weeks before he gets to it. I went with the rebuilt lift motor, it was $125 cheaper than the new one.I'm having new ball gears installed. Thanks for all the help, I appreciated it. Robertk
 
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