COOP, ANY SUGGESTIONS?

[SCT]

Coop or anyone else have any suggestions on how I should fix these holes in my CM tunel?

The previous owner had thru bolted turning strakes to the outside of the sponsons. They were made of wood and totally rotten from sitting all these yrs. There are 8 holes on each side of the lower sponsom that need filled. My problem is that I can only reach the two back holes and I really don't want to cut another inspection plate or pop the deck.

I origionally wanted to glass patches on the inside of the holes and then fill the holes from the outside w/ duraglass putty and grind/sand it smooth. Someone suggested the wooden dowel trick but the glass is very thin in this section.

I also thought of about stainless flat head bolts w/ nylon washers and nuts.

Any ideas??

 

[SCT]

Sponsom:

 

[SCT]

The holes:

 

[JUPITER PULSARE]

Shannon, can you cut an inspection plate from inside the cockpit to a point where you can reach the holes?? Then you would not have to cut the deck or remove the deck...just install a "pie eye" for future inspections..

 

[SCT]

There is access to the sponsons from the cockpit but I still can't get my arm all the way out to the edges of the sponsons......or at least good enough to glass from the inside. I'm thinking of popping the deck along the hull/ deck w/o cutting the bracing in the cockpit (that would be a nightmare).

 

[SCT]

Here's the cockpit pix:

 

[175checkmate]

I wonder if you could fill the hole with marine tex. Fill the hole then grind smooth. The stuff is hard as nails. Since this is not a structural member you should be alright.

http://www.marinetex.com/PRODUCT PAGE_files/All MarineTex Putty/marinetex prod info.htm

 

[cooperider]

If you can fish a string or wire through the hole, you should be able to pull a backing plate coated with some kind of sealer or adheasive to bond to the back side of the hole. Then patch it from the out side.