@ Master_3
Zur Information: Denke an die Benutzung einer zusätzliche Unterlegscheibe falls die oberen Mutter/Bolzen nicht völlig festgezogen werden können.
1) After I had tightened it and lowered the engine back in the sub frame and tightened the front and rear nut I found you could turn the top one relatively freely again with no way of getting at the hex bolt underneath.
2) A quick update if anybody buys the RXPerformance mounts in future. After searching on the US owners site the problem with the centre bolt not tightening full is mentioned so after emailing scott@rxperformance he suggested adding another washer under the centre nut as the bolt is only partly threaded and in my case was done up to were the bolt becomes solid and there was still some play. So i added 2 x washers to make sure and this has done the trick. All tightened up fully and secure. Hope this might help someone else in future.
http://www.rx8ownersclub.co.uk…php?f=30&t=37453&start=30
mfG, Ruud