1973 Mercruiser Sterndrive hinge pin question

[kendog170]

Hi All,
I am about to do the Bellows on my 1973 Glastron Carlson CV 16 SS . I attached the boat specs. It's the 140HP model. The hinge pins appear to be a type that are pressed in? It looks as if I need to thread a screw and pull out with a slide Dent puller ? Any info would be greatly appreciated as I can't seem to find anything this type .

 

[Alumarine]

The boat type isn't that important.
There are cotter type pins or nails that have to be removed first.
Try not to break them as they are NLA.
I screwed a bolt into the hinge pins and used vice grips to pull the hing pins out.
If they are really tight you will need a small slide hammer.

 

[Bondo]

Ayuh,.... If the aluminum nails ain't salvageable, go with a ssteel cotter pin,...

The threaded hole is 1/4",.... don't remember whether it's 20, or 28 thread,....

Slide-hammer is a Must,....

 

[kenny nunez]

1/4” 28 . You do not want to shear those stainless nails. They cannot be drilled out because the drill bit will cut everything else but the nail. Try some heat if you have a torch. That is the only way I have ever been able to remove them. The replacement pins are larger and I actually have a few left over from my shop’s inventory If you need some.

 

[kendog170]

Ok, well there are no nails just the threaded holes showing. They looked smaller than 1/4" but maybe not. I not near the boat as it's a couple of towns away. I do have a slide type dent puller I can modify to accept a 1/4 x 28 screw. I take it the SS Nails are there to protect the threads ?
Kenny I will let you know if I will need replacements pins and Nails if you have them.
Thanks All for you responses. I'll update when I get to this.

 

[Bondo]

Ok, well there are no nails just the threaded holes showing. They looked smaller than 1/4" but maybe not. I not near the boat as it's a couple of towns away. I do have a slide type dent puller I can modify to accept a 1/4 x 28 screw. I take it the SS Nails are there to protect the threads ?
Kenny I will let you know if I will need replacements pins and Nails if you have them.
Thanks All for you responses. I'll update when I get to this.

Naw, they are cross-locks in the other end of the pins, opposite the holes,.....

 

[Alumarine]

Here's a couple of pictures that might help.

Small hole on Aft end


Facing Bow where nail is bent.

 

[kendog170]

Ohh, now I see.
Thanks

 

[kendog170]

Getting at the nail where it's bent looks tough to access. Any tips or link to a manual for this style . I'm thinking I may have to remove the Gimbal Ring ?

 

[Alumarine]

Getting at the nail where it's bent looks tough to access. Any tips or link to a manual for this style . I'm thinking I may have to remove the Gimbal Ring ?

Sorry it's been about 15 years since I last removed those.

Can you not use a small punch to knock those nails out from the back to the front?

Also, once those nails are out I'm wondering if it's possible to punch the hinge pins
inwards to remove them?

 

[Campfire]

Getting at the nail where it's bent looks tough to access. Any tips or link to a manual for this style . I'm thinking I may have to remove the Gimbal Ring ?

Turn the steering wheel.

If that isn’t your issue, just get a sharp tool to raise the nail head off the housing and then you will be able to get a pry bar or hammer on it.

 

[kenny nunez]

Push the drive to one side. Then on the front of the gimbal ring and with a small chisel or even a screwdriver and a hammer you should be able to straighten the end of the pin enough to “hopefully” be able to extract it with a pair of diagonal cutters, get under the head of the nail then tap it with the hammer to pull it out. You could even use a piece of a tig stainless welding rod to replace the old nails if they are too bent up.