Morso squirrel flu seperated from top plate - fixing advise

[Martin CC O'Beirne]

Oh no – anyone got any advice? I let a friend stay on my boat for 2 days, and he somehow managed to separate the flue from the top plate, I’m not sure how the fitting should work, so not sure how to fix it, I tried fixing it with that heat clay but that failed, the flue doesn’t sit naturally over the hole, it requires pressure to keep it in place, it has a back boiler, lots of plumbing, so moving the unit is not preferable to moving the flue –

Do I just need a new cuff or topplate or some other fix, can you take off the top plate really? I would have though these things become jammed with heat over the years

Any advice appreciated

Cheers

Martin