Amel Super Maramu 2000

Bow Thruster repair not going as expected. First I never noted there was a 4th foam seal. This one is at the top of the fiberglass shaft (right below the electric motor). Anyone else with the same? You can see on the picture how I mark the back position of the bow thruster Also, I do not have the 2 retaining screw & washer arround the Lip Seal. Doesn't look like I/nor previous owner even need them as the Lip Seal always stay down. I first tried "rescue" tape, was too thick to go through the Lip Seal... So I used regular packing tape. Some water, went through the tape when the bow thruster went under water, and I am worrying the same will happend when I put it back. Any advice? For sure was no water leak (no milky oil looking) - when I turn it over to empty it, first was water (from the under water transition) then just plain black oil. The 2 bottom foam seals look perfect to me. I can't imagine they are the reason of the leak - look at the pictures. The single Top foam seals looked good as well. Only the lip seal had some space arround - did not feel as tight as the new ones I have. For sure water is coming from there. Could moving too fast with bow thruster down create this problem? Could boat (especially bow) be too loaded? It looks to me the water lice is (dangerously) close to the top of the bow thruster cavity - could this be my problem?

Below: I noted there is a 4th foam seal.
This one is at the top of the fiberglass shaft (right below the electric motor).
Anyone else with the same?
You can see on the picture how I mark the back position of the bow thruster

 

In my opinion, the 2 foam seals still look very good
I can not imagine them being the cause of the water leak.
Should I add a 3rd one???

 

Looks to me the water line is very close to the top of the bow thruster cavity.
Could this be my problem? I loaded too much the boat (especially Bow) and there is too much water pressure?

 

I noted the lip seal had some space arround - did not feel as tight as the new ones I have.
For sure water is coming from there.
Could moving too fast with bow thruster down create this problem?