Suzuki mechanic recommendation df90 leg stuck

[Aridhol]

Hi, I have a 2016 Suzuki DF90 outboard that I was going to change the impeller on but I can't for the life of me get the leg off.

I've triple checked (I think) that I have all the bolts out but I just cannot get the thing apart so I need professional help to look at it and see how screwed I am.

Its been trailered in and out since new and flushed with saltaway every time so I didn't expect it to be seized but...

Other than getting the leg apart it runs like a dream and starts great so I'd like keep it around if I can.


About 470 hrs I think on it.

Any recommendations, tips or advice is welcomed.

 

[kingblazer84]

Got any pics of the mounting seam of the lower unit? Any hint of corrosion?

 

[Aridhol]

I'll take some, nothing I can see.

 

[CIVANO]

Do you have a bolt under the trim tab?

 

[Aridhol]

Yep there's a bolt under the cav plate? That is recessed and I got that out. There is a zinc there too.

Its not actually bolts that go up, its bolts that come down towards the propeller with nuts on the end, the nuts and washers is what I've removed. Hope that makes sense.

Just at son's ball game, will take some pictures when I get home

 

[sly_karma]

I'm not familiar with Suzukis at all, but don't forget to disconnect the shift rod.

 

[brutus]

? so the lower unit has never been taken off ??? If this is the case then hope the shaft is not seize in

 

[Aridhol]

I'm not familiar with Suzukis at all, but don't forget to disconnect the shift rod.

I will have to check this.

 

[Aridhol]

 

[Aridhol]

? so the lower unit has never been taken off ??? If this is the case then hope the shaft is not seize in

I believe it has but only once. I did not have possession of the boat at that time.

 

[scott craven]

You may have to use some plastic shims once you're sure all the bolts are free.
Gently tap the shims in switching sides frequently.
It can take some persuasion but hopefully it'll break free.

 

[brutus]

Looks like the studs are crusted in salt built up, spray salt away on them and try to break them free from the lower unit with small wedge, like Scott says side to side round and round lol, you will see movement, if it’s not budging then you might have a bigger issue,

 

[Zuktaylor]

Put the nuts on a few threads, hammer on the studs then hit them with a torch.

 

[InterMechanico]

I would soak the threads thoroughly with Deep Creep or Moovit, wrap it in a plastic bag and come back to it in a few days time.
This is what I do with diesel exhaust manifold studs and it works really well every time

 

[Thunder21]

This is a common Suzuki issue. I bet the reason it won’t come is the shaft is seized into the bottom of the powerhead due to a lack of grease. They need to be dropped every year and grease applied.

 

[Aridhol]

This is a common Suzuki issue. I bet the reason it won’t come is the shaft is seized into the bottom of the powerhead due to a lack of grease. They need to be dropped every year and grease applied.

this sounds like a costly problem, what would I be looking at $$$ to fix?'

 

[wolf]

When you do get it off make sure to get the "blue" spline grease(also on prop shaft) . grease is your friend, I was taught looonnngg ago put grease on every nut and bolt on marine .
My mechanic freind who is a marine tech likes to use grease 2-4-c on all bolts makes life easier down the road. last year we dropped my leg there wasnt a drop of grease on any thing from factory when we did water pump,internal zinc,etc everything got a dab