Totaly agree !

As Bob said it is the little plates onn the end of the arm that have rusted away, the arm is all in one piece, it's not a mayjor problem, the roof shuts as it should, and i can still tilt it !! , honsetly Phil, don't feel guilty at all, these are all minor litlle gripes that i expect, the manifold is going to be the biggest job,, i will have another go at some point, but iv'e got used to it and it only does it for a few minutes on start up then it's gone, so i an't gunna get it done before Little Horwood !!
Thans for the advice Bob , il'l look at making some up , i should imagine that they are like rocking horse teeth to find, it's just rusted on that end
Nigel