Concerning Coupe Front Strut Upper mounts

[rob]

 Had an interesting time replacing the front springs on my '87 CGT with lowish miles. It seems that they are unobtanium from the dealer now, but I managed to find a Lesjofors (sp?) pair.

 It turned out that one of my old spring was broken in two places, - the last 4 or so inches from each end had broken. I knew one end had gone and when it happened, but the other end must have been gone many moons ago - the broken end was properly corroded.

 Anyway I had got a couple of new green top mounts. Having heard people decry their lifespan and having now done the job I wonder about the failure mode - my old ones only showed up in terms of slackness in the bearing washer - perhaps around 1mm of play compared to almost none on the new mounts.

 So any comments? is it just this bearing play that is the normal complaint , or is there some other way that they fail that I'm not aware of?

    Cheers Rob