Re: Adjustable strut tops
Paul, I've recently suffered the same issue with the urethane in my Noltec top mounts failing too in one of my mk1's. It was brought to my attention by the owner of my previous mk2 RS. They were considerably older in the mk2 and had deteriorated worse than mine. Crumbling to dust almost! However Kmac adjustables (with urethane) in my other mk1 are still fine after over 2 decades of my ownership. Obviously it's the Noltec urethane formulation that is 'rubbish', not the general design.
I like the Noltec design for that little bit of isolation the urethane bush gives. Rather than buying something new (at 4 or 500$) both myself & the owner of my old mk2 have had ours recast in 'new' urethane by a fellow up in Gosford NSW who convinced us his stuff would last and was aware of Noltec urethane issues I believe. (the mk2 owner did all the talking & legwork) It was cheap to get done too! Worth the gamble I thought. However I'm yet to see if the new stuff stands the test of time though!
If interested the contact is Graham White Urethanes, 0418241037 and he does a fair amount of specialist car stuff so I'm told.