Murry Bros deck plate

[Sea Horse]

The deck plate that my Murry Bros helm chair bolts to has cracked. It looks like cast aluminum and has three Allen head bolts that form a triangle that attach the pedestal to the plate. Murry sold out to Pompanette and they have no parts when I called them. Anybody know where I can buy a plate or is a metal shop to fabricate one my only option?

 

[Cricket]

Probably going to have to find a machine shop to make one.
Might try calling Release Marine, sometimes they have lots of trade in chairs and other stuff/parts.
I think Springfield Marine used to make most of the Murray Bros, and many others, aluminum parts.
Surprised it cracked, what happened?

 

[Sea Horse]

Fished a tournament up in Morehead City last weekend. Crew had to go to work Monday so even though not the best of forecast Sunday we ran to Wrightsville Beach about 70 miles. An hour out we got caught in a squall with winds clocking 40 knots at the weather buoy as we past. Rain Lightening and 5 to 6 ft seas. Boats a beast in a head sea but caught one that was more than I should have asked her for. Took a wave that stopped me dead in my tracks ,didn't see it coming and flew forward and the back into my seat. Deck plate is cast aluminum and tore one bolt right out of the deck plate. Tried to drill and re-tap after rotating the base to fresh metal this morning. Seems its hollow except for the original holes where there was some meat. Reinstalled but its not going to last. I'll try your suggestion and then pull the deck plate and have one fabricated from stainless if it doesn't work.
Thanks

 

[oceanjake]

Those plates are very easy to make out of solid material. I made one for my last boat out of 3/8 aluminum. If I remember correctly it was 8” diameter. Once tapped, aluminum can polish nicely. Tapping stainless I think would be more challenging. Can you easily remove the plate and do you still have the required bolts I assume?

 

[Sea Horse]

The plates 9” and I found one that I think will work. Waiting for it to ship and think I’ll have to retap for my pedestal base. Original that cracked was cast aluminum and only meat was at bolt hole locations rest was hollow and although I’ve retapped and installed the chair I’m not trusting it to hold.