K35 Mag Plate Repair?

[John Gragg]

If I didn’t have bad luck I’d have no luck at all…

Good Day,

Long story, two different mag plates have let go (prior to me touching them) at the collar clamp area. This is the best of the two for repair as far as I can tell.

Thoughts on:

How to repair

Will JB handle this if I am gentle during assembly?

Do I need an aluminum welder to repair for me?

How about a slice of alum stock under the gap and a couple of small holes drilled into the plate (through the collar), tapped to a small dia. and screws set in epoxy? Once dry, grind off the screw heads?

Anyone willing/able to give that last one a try for a few bucks?

Thanks,

John Gragg
RIverside, CA

Just starting in the hobby, please be patient.

48 Sea King 5hp GG9014A. Sold
49 Sea King 5hp GG9014A
48 Johnson TD20. Sold
49 Johnson TD20. Sold
54 Johnson QD15. Sold
55 Johnson CD12. Sold
57 Johnson RJE-19M
57 Johnson RDE-19

[Buccaneer]

Something I might try myself some day in your situation, is to alumi-braze
that piece back on, but don’t use that clamping bolt anymore
to tighten the mag plate.
Instead, one could drill and tap a hole in the “unbroken” portion of the ring,
and use some kind of friction plug, i.e., a nylon bolt.
Anyone think that would work?

 

Prepare to be boarded!

1 user thanked author for this post.

John Gragg

[John Gragg]

Buccaneer wrote:

Something I might try myself some day in your situation, is to alumi-braze
that piece back on, but don’t use that clamping bolt anymore
to tighten the mag plate.
Instead, one could drill and tap a hole in the “unbroken” portion of the ring,
and use some kind of friction plug, i.e., a nylon bolt.
Anyone think that would work?

 

I really like that idea. Might add a thin stainless collar (think about the modern (40’s / 50’s mags) so the plastic nut is not riding directly on the powerhead boss, instead the bolt is putting indirect pressure on the boss. Eliminates wear on the plastic nut.

Good idea, or no?

Thanks Buccaneer!

What does the group think?

John Gragg
RIverside, CA

Just starting in the hobby, please be patient.

48 Sea King 5hp GG9014A. Sold
49 Sea King 5hp GG9014A
48 Johnson TD20. Sold
49 Johnson TD20. Sold
54 Johnson QD15. Sold
55 Johnson CD12. Sold
57 Johnson RJE-19M
57 Johnson RDE-19

[Buccaneer]

with a collar installed, will the mag plate still fit on the boss of the powerhead?
If so, that would work I think.

Prepare to be boarded!

[John Gragg]

Not sure, good thought.. I have some different size thin stock i bought for setting my late 40s coils (TD20, etc). I’ll add the shims to verify i have room. Thanks

John Gragg
RIverside, CA

Just starting in the hobby, please be patient.

48 Sea King 5hp GG9014A. Sold
49 Sea King 5hp GG9014A
48 Johnson TD20. Sold
49 Johnson TD20. Sold
54 Johnson QD15. Sold
55 Johnson CD12. Sold
57 Johnson RJE-19M
57 Johnson RDE-19

[Tubs]

Just to add to Buck’s suggestion, this is how I make friction plugs when the factory ones, between the block and the tensioning screw , are used up

A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.

[Author]

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