Well, the pump is off with no dramas, the bolts weren't very tight. The inner bearing is completely shot, I checked my records and it was replaced in 2013, 8,000 miles ago! I guess that's where lack of use can be a bad thing? There are new-old-stock pumps on eBay listed for TVR & SD1 V8 but these have a threaded portion on the nose flange. I'll try and post a photo!