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Cracked lower unit questions

"I changed my water pump this

"I changed my water pump this morning and noticed that the lower unit is cracked. Can this be welded or will have to purchase another lu? The motor is 1993 85hp Yamaha.
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"That's a nasty crack - yo

"That's a nasty crack - you could try a very talented welder but you may find that it would be very difficult to keep it sealed properly - looks like the crack comes right across the seal on the bearing carrier.

But given the cost of even a used empty case, it's worth at least having someone take a look..."
 
"The problem which caused this

"The problem which caused this is corrosion between the carrier and gearcase housing, the crack hasnt gone through where the oring seal sits.

If you weld it it will only ever be temp repair it would be best to find a sh gearcase and have yours rebuilt"
 
I have a friend that owns a Fa

I have a friend that owns a Fab shop that says he can weld it. He says the gears and all will have to be removed. Is this a simple task? Are there any special tools I will need?.....What is a good site to look for used lower units?
 
"I had mine welded and it was

"I had mine welded and it was exactly the same crack, it only reached as far as the gear housing i used a specialist welding company and they made no fuss at all about it and it's been fine since"
 
"I've had one 3 H.P. motor

"I've had one 3 H.P. motor welded up from a crack similar to that and it's been fine for years. the welder put a rather heavy bead of aluminum weld on the outside of the case and it seems pretty darn strong. Believe he used some "cooler" type welding that didn't seem to overheat the entire lower unit. considering the price of used lower units, the welding could be worth a try. still won't hurt to check around for a good used lower unit and might luck up on a deal. Good Luck!"
 
I had it welded by a friend of

I had it welded by a friend of mine that has welded lower units before. He "cold" welded it without taking it apart. It has been running great ever since!
 
"That's great,you learned

"That's great,you learned something, saved yourfelf a lot of money and it may hopefully last for several more years! good luck!"
 
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