SEI 116 shift cable issues, help please

Lucas68W

Cadet
Joined
Apr 28, 2020
Messages
10
Forewarning this will be somewhat long.

I purchased the boat a few months ago and it already had a brand new SEI 116 Upper and lower unit on it. I had an incident catching a rock on the prop, and ended up having the lower unit sent off for warranty work. They sent me a brand new one. Before this the boat shifted and performed perfectly. No issues. Ever since I changed the lower unit out, when I come out of gear from either forward or reverse it stalls out and dies most likely from engaging the shift interuptor for to long. Going into forward it's sometimes hesitating as well and I can hear a partial engagement before the firm clunk. So the question is this. Why would changing the lower unit cause shift issues? I have not touched the upper unit nor the cable at all.

I went to go double check my shift cable measurements today and apparently the lower shift cable is peened to the threaded rod. Rather than drilling and putting a bandaid on this, I would like to find the problem and fix it. Do all of the shift cables need to be readjusted because of the new lower? And if so how is the lower shift cable supposed to adjust when I cannot turn the brass barrel.

I've spent hours researching this hoping y'all can help, thank you.
 

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Lucas68W

Cadet
Joined
Apr 28, 2020
Messages
10
Also is worth mentioning that the unit/prop seems to be engaging as normal for a standard rotation drive. Spins freely in neutral, locks firmly in forward and reverse.
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
28,225
You should post this in the Merc I/O (Your SEI is Merc clone, right?) forum, as it is motor specific.

I would not think it strange to need to readjust shift cable, when new drive is installed. Is the lower shift cable working properly? They can get water in them, if shift bellows is bad.
 

Lucas68W

Cadet
Joined
Apr 28, 2020
Messages
10
Ahh, sorry about that I thought I had the right forum. The lower shift cable is easy to manipulate by hand disconnected, and all the bellows are less than a year old. Everything was working great until the new lower half was installed, which is suspicious I did not think that would affect the shifting. I'll repost this in the right forum I appreciate it
 
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