Lower unit repair

[MNhunter1]

Can these holes just be filled with JB WaterWeld or MarineTex, sanded, and finished, or is there another recommended repair?



How about this one - I suppose it would need to have some material welded on, shaped, and finished?

 

[DeepCMark58A]

Doesn't effect the performance of the motor.

 

[jimmbo]

The Holes can certainly be filled with JB Weld(Always gives me pleasure to see any and all of those Whaletale things tossed). As for the second Motor with the damaged AV Plate, it appears to me that Metal forward of the Damage, is bent upwards a bit. That should be Straightened, as the Curvature can cause Water to curl up, instead separating cleanly from the AV Plate as intended. A Welder, skilled in working on Aluminium should be able to do fix that, and also rebuild the missing Metal

 

[boscoe99]

The Holes can certainly be filled with JB Weld(Always gives me pleasure to see any and all of those Whaletale things tossed). As for the second Motor with the damaged AV Plate, it appears to me that Metal forward of the Damage, is bent upwards a bit. That should be Straightened, as the Curvature can cause Water to curl up, instead separating cleanly from the AV Plate as intended. A Welder, skilled in working on Aluminium should be able to do fix that, and also rebuild the missing Metal

Why is that? I used a hydrofoil first on my Mercury 175EFI and then on my Yamaha F200. Worked extremely well. Great bang for the buck. I did modify mine so that it was clamped on such that I did not have to drill holes. Did that so that if it did not work I could remove it.

 

[DeepCMark58A]

Why is that? I used a hydrofoil first on my Mercury 175EFI and then on my Yamaha F200. Worked extremely well. Great bang for the buck. I did modify mine so that it was clamped on such that I did not have to drill holes. Did that so that if it did not work I could remove it.

I had one on my Honda 15 hp with a tunnel hull for the prop, worked awesome.

 

[Scott Danforth]

both lowers would be a 30 minute job (total) for most welders.

 

[airshot]

In my years of boating, I have saw these fins be successful on smaller out boards and light weight boats. On large hp motors, I have saw more damage than help. I have saw more cav plate damage on the bigger hp motors. To each his own....but be aware, they will void your warranty on new motors.....

 

[DeepCMark58A]

Looking at those holes it looks like the pattern for a trolling motor mount rather than a fin.

 

[boscoe99]

If part of the anti ventilation plate broke off and a hydrofoil was installed I can see that not being covered by a warranty. If something unrelated to anti ventilation plate became defective, and it would otherwise be covered by a warranty, I suspect the defective part would covered under the warranty. IME manufacturers are not out looking for a reason to deny a legitimate warranty claim.