Hello Bob & Barry,
Thanks for your help & advice. The gyrostarter is now operating fine. I had replaced the toothed centre shaft, but found the rivets I used were slightly too high and fouling, so a bit of flattening the rivet heads with a hammer & punch sorted it. Now with the lever pulled, the electric motor spins freely. I'm delivering it to it's owner Gilles Deloge on tuesday, along with Avolette & Schmitt engines I've overhauled for him. Hopefully he'll now be active with a few of his cars. I want an Inter. regards, Nick.