Replacing upper - what else?

[chewy7097h]

I am replacing the upper half of my drive with an SEI106 1.94 upper. I currently have a 1987 Alpha 1 120. While I am there, I will also replace the impeller (since I'm already there). I presume there are additional seals I will need to replace between the upper and lower? Also - is there any other items I should replace while I'm in there? I'm going to purchase the SEI Install Kit which includes all new O-Rings / Bell Housing gasket / hardware. The 21 year old hardware on the boat is all bunged up from the PO.

 

[Don S]

Re: Replacing upper - what else?

Why are you replacing only the upper? If it was because of gear failure in the upper, that would gaurentee the lower is also contaminated with metal. Put a new upper on that, and you will soon loose both.

 

[Bondo]

Re: Replacing upper - what else?

Ayuh,.....

With all the Trash from the upper floating around in there,....
At a Minimun The Lower needs to be torn-down, cleaned, Inspected,+ Resealed......

 

[chewy7097h]

Re: Replacing upper - what else?

I posted about this earlier - long yolk is shot, I chipped a couple teeth off the retainer ring (big castle nut), the upper seal needs to be replaced, and the u-joints, obviously, still need to be replaced. The estimate from the shop for parts and labor is significantly more than the $600 for a new upper (unless the mechanic I've been using is a scam artist who's ripping me off on the labor). If he is, let me know so I can start looking elsewhere.

 

[Bondo]

Re: Replacing upper - what else?

Ayuh,...... In that case,.. You'll probably be Just Fine.....

 

[Don S]

Re: Replacing upper - what else?

If you are using a Merc dealer, they aren't ripping you off. If you need the long splined shaft and there was any oil in the bellows, then you would probably need a new inner yoke also as they get a groove in them and leak (Was there gear lube in the bellows by any chance) At that point, you would need a compete ujoint assembly. They go for $485.
Along with the other parts like the input shaft seal, the retainer nut and other gasket kits new gear lube and their $600 sounds a little light. But they got to see it, we didn't.
So yes, your upper only would be a good choice.

 

[chewy7097h]

Re: Replacing upper - what else?

Yes - small amount of oil in the bellows... Their quote was ~ $1000... NOT a Merc dealer - small independent shop that a friend referred me to. For that price - $600 for a whole new upper + warranty is a bit more attractive...