Cracked gear case housing

[BigSlant]

Hey All

I have inherited a 1984 Champ with a 99 Johnson 200. The housing right above the prop is cracked in a v shape about an inch down both sides. Any idea what caused this type of crack and is this something that is in need of replacement before operation? The engine runs well out of the water and the prop seems to spin true but im a little worried to put it in the water with this crack. To my knowledge it has been cracked awhile and out fishing fairly recently. Thanks in advance

 

[Bosunsmate]

Re: Cracked gear case housing

Any water in your gearbox oil?
Post a pic if you can

 

[BigSlant]

Re: Cracked gear case housing

No water as far as I can tell but I haven't taken it apart.

 

[Bosunsmate]

Re: Cracked gear case housing

You can just drain the oil to see if its milky
That cracks bigger than i had imagined
id epoxy and sand it back myself, but im a cheapo

 

[BigSlant]

Re: Cracked gear case housing

Any idea what would cause that? Don't want it to have been a mechanical malfunction that caused it. Thanks for the input.

 

[Bosunsmate]

Re: Cracked gear case housing

If you remove the bottom drain plug you can see if it has a magnetic pick up on it, If it does and you have a lot of metal on it it might mean you have had a mechanical malfunction. Looks more to me like something may of caught in the prop and whacked it.

 

[BigSlant]

Re: Cracked gear case housing

Thanks much. Ill start there.

 

[Bosunsmate]

Re: Cracked gear case housing

If you drain out the gear box fluid, not sure if you know, but you need to pump it back up from the bottom to get it filled correctly.
If it doesnt have a drain plug with a magnetic tip you can strain it through a rag and look for metallic bits.

Good luck, 200hp is a nice motor

 

[Faztbullet]

Re: Cracked gear case housing

Epoxy wont hold that!!! Water in gearcase frozen and pushed carrier backward cracking housing!!!

 

[BigSlant]

Re: Cracked gear case housing

Seems to shift forward and reverse fairly smooth when out of water, throttles up as well. Its aluminum correct? Is this something I can weld or is the only answer a new lower? Thanks

 

[Faztbullet]

Re: Cracked gear case housing

If you take prop off you will see the 2 tabs that hold carrier in, I would not trust welding as aluminum weld is weaker than the casting. Best bet is to find a used housing that has been alignment checked as they do warp or buy a SEI unit...

 

[BigSlant]

Re: Cracked gear case housing

SEI? Thanks

 

[BigSlant]

Re: Cracked gear case housing

So after researching I guess the SEI units are made In china? Or with Chinese parts? Any ideas on who to buySEI from? Want to compare prices. There are a few ebay stores selling johnson/evinrude remans fully tested for around 1k. Thanks

 

[Faztbullet]

Re: Cracked gear case housing

iBoats use to sell them, you can also order direct price abot $900 with shipping and 3 year warranty.