Mounting Magna Grill to Swim Platform

chaslanier

chaslanier

Member
Mar 7, 2017
34
Lake Lanier GA
Boat Info
2006 Sundancer 320
Engines
Twin 350 MAG w/V Drives
Just got a new Magma grill with post. Instruction show two ways to mount, through the platform and secure with nuts, or direct screw to platform using wood screws. Question, how have other mounted the stand to the platform? I was thinking using stainless steel metal screws direct to platform. Thoughts?

Thanks!
 
chaslanier said:
Just got a new Magma grill with post. Instruction show two ways to mount, through the platform and secure with nuts, or direct screw to platform using wood screws. Question, how have other mounted the stand to the platform? I was thinking using stainless steel metal screws direct to platform. Thoughts?

Thanks!
Click to expand...

Are you talking about the pedestal mount? I through bolted it into the swim platform using stainless nuts and bolts. Drill the holes slightly larger than the bolt diameter, fill the holes with 5200 and let cure, then redrill to the proper size. That keeps the water out of the swim platform core. I would shy away from wood screws. Too easy to leak water into the wood and could potentially pull out of the platform
 
Strecker25 said:
Are you talking about the pedestal mount? I through bolted it into the swim platform using stainless nuts and bolts. Drill the holes slightly larger than the bolt diameter, fill the holes with 5200 and let cure, then redrill to the proper size. That keeps the water out of the swim platform core. I would shy away from wood screws. Too easy to leak water into the wood and could potentially pull out of the platform
Click to expand...

I did the same except I just used silicone in the holes.....the 5200 method is better.....
 

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Strecker25 said:
Are you talking about the pedestal mount? I through bolted it into the swim platform using stainless nuts and bolts. Drill the holes slightly larger than the bolt diameter, fill the holes with 5200 and let cure, then redrill to the proper size. That keeps the water out of the swim platform core. I would shy away from wood screws. Too easy to leak water into the wood and could potentially pull out of the platform
Click to expand...

CliffA said:
I did the same except I just used silicone in the holes.....the 5200 method is better.....
Click to expand...

I did the same on my 240SD and my 280DA.... through the platform with stainless nuts and bolts and filled with silicone. Never had an issue with this method.
 
Thanks! I am leaning to the through bolt method also. Did not think about the 5200 and the silicone though.
 
I used 'fender washers' which are much larger in diameter than standard washers....this spreads the load of the grill and pole over a wider area which results in less stress to the platform.....when the grill is installed and the boat gets rocked by a large wave there can be significant stress generated on the post mount....you don't want to have the mount pull loose from the platform when a hot gill is being used....that would ruin your day.....

cliff
 
CliffA said:
I used 'fender washers' which are much larger in diameter than standard washers....this spreads the load of the grill and pole over a wider area which results in less stress to the platform.....when the grill is installed and the boat gets rocked by a large wave there can be significant stress generated on the post mount....you don't want to have the mount pull loose from the platform when a hot gill is being used....that would ruin your day.....

cliff
Click to expand...

That's a good idea. Quick story on our "first" grill.

Brand new $300 grill, first time out and using it. Making littleneck clams on the grill while rafted up to a friends 370 AC. On the aft cabins the rear cleat is very high in relation to our DA, so the back line was at a significant angle. Calm day and all is well until a very large flybridge comes cruising by. A few seconds later his wake hits us and we start to do the see-saw act, the rear line goes slack and slips under the grill then immediately tight as the boats are rocking. It pulled so hard that it ripped the brand new grill with a dozen clams on it straight off the mount and flung it 5 feet into the air then immediately to the bottom of lake ontario.

moral of the story....rafting up is fun for everyone but the captains, grills don't float, and the mount holding ours on is very strong.
 
man, that sucks.....it would have taken a lot of 'dark liquor' for me to to get over that one....:smt089......

one tip I will also share.....the mounting post do not float either.....lets just say I found that out the hard way.....new post cost around $50.....:wow:.....

so for the replacement post I cut up an old 'noodle' and stuffed slices of it inside the post.....if this post decides to go for a swim it will float and not sink to the bottom of the lake.....

cliff
 
chaslanier said:
Thanks! I am leaning to the through bolt method also. Did not think about the 5200 and the silicone though.
Click to expand...

I would lean towards the 4200 silicone in case you ever need to get it off. It's still rated for below the waterline.

-Kevin
 
the 5200 is not to seal the screws. drill the holes larger than is required and use epoxy or 5200 to completely fill in those holes you just drilled. then, re-drill out the holes to the correct size leaving some of the now very dry and cured 5200 or epoxy as a buffer between the screws and the core of the platform therefore not allowing water to ever get near the exposed fiberglass. then just use silicone to seal out the water.
 
So we were on the boat today. I was looking at mounting the unit to the swim platform. Question, did you through mount the base and pole with the boat in the water or did you take it out. To me would be hard to fasten the nuts with the boat in the water. Suggestions?
 
chaslanier said:
So we were on the boat today. I was looking at mounting the unit to the swim platform. Question, did you through mount the base and pole with the boat in the water or did you take it out. To me would be hard to fasten the nuts with the boat in the water. Suggestions?
Click to expand...

Definitely out of the water is the easiest.
 
chaslanier said:
So we were on the boat today. I was looking at mounting the unit to the swim platform. Question, did you through mount the base and pole with the boat in the water or did you take it out. To me would be hard to fasten the nuts with the boat in the water. Suggestions?
Click to expand...

I did mine while the boat was in the water......not too bad to reach under the platform while sitting on it to start the washers and nuts on the bolts from underneath the platform.....but as you see in the pic I posted in an earlier reply my base is located pretty close to the edge of the platform....after I got the nuts started on the bolts I used a large screwdriver to hold the bolt steady from up top while I used a small ratchet and socket to tighten the bolts underneath....

I used stainless steel nylock nuts in lieu of lock washers....

cliff
 
Last edited:
Did the same thing with mine however I used 5200 inside the holes and around the bolts and washers. Didn't know 5200 was permanent till after, used what the sales guy recommended. Mine is on for life.......
 
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