Hi Tim,
I have replaced 2 transoms so far, both have in my opinion worked well. The first one was in 3022 my pipedream and the second was in 760 Bobtail. The 4 plank one was easier than the 8(?) plank therefore the baggy should be simple. Assuming the remains of the existing transom are still bonded to the hull make a template of the transom on hardboard or thin ply allow for the hull and deck thickness. The inside face of the transom will be bigger than the outer face, you should be able to determine this by careful measurement on the inside and outside faces of the transom.
Mark and cut your new transom to shape allowing for the bevel which wont be more than a few millimetres over the thickness of the new transom. This can be made from whatever you can source. 3022 was solid cheap and cheerfull ply (18mm?). Bobtail has something a bit nicer.
How to remove the old transom will clearly depend on how well fixed it is. Watch out for any staples that may have been left from the inner laminations... I managed to remove the remains intact from Bobtail and this was my template. I fixed a timber batten between the side decks to hold the hull together. I also used a webbing strap to start with but soon found it wasnt doing much.
Keep trimming the new transom till it fits... a bevel gauge is useful. A perfect fit is not essential on the inside face as thickened epoxy will fill a reasonable gap and a small fillet will hide the inside joint. If the outside has a wide joint, paint it! There are pictures of Bobtail(760) on the database that might help. Refixing the knee(s) is quite straight forward. Epoxy and mocrofibres are very forgiving.
Good luck and I accept no resposibility if it goes wrong!
John
I have replaced 2 transoms so far, both have in my opinion worked well. The first one was in 3022 my pipedream and the second was in 760 Bobtail. The 4 plank one was easier than the 8(?) plank therefore the baggy should be simple. Assuming the remains of the existing transom are still bonded to the hull make a template of the transom on hardboard or thin ply allow for the hull and deck thickness. The inside face of the transom will be bigger than the outer face, you should be able to determine this by careful measurement on the inside and outside faces of the transom.
Mark and cut your new transom to shape allowing for the bevel which wont be more than a few millimetres over the thickness of the new transom. This can be made from whatever you can source. 3022 was solid cheap and cheerfull ply (18mm?). Bobtail has something a bit nicer.
How to remove the old transom will clearly depend on how well fixed it is. Watch out for any staples that may have been left from the inner laminations... I managed to remove the remains intact from Bobtail and this was my template. I fixed a timber batten between the side decks to hold the hull together. I also used a webbing strap to start with but soon found it wasnt doing much.
Keep trimming the new transom till it fits... a bevel gauge is useful. A perfect fit is not essential on the inside face as thickened epoxy will fill a reasonable gap and a small fillet will hide the inside joint. If the outside has a wide joint, paint it! There are pictures of Bobtail(760) on the database that might help. Refixing the knee(s) is quite straight forward. Epoxy and mocrofibres are very forgiving.
Good luck and I accept no resposibility if it goes wrong!
John
