Tony you have saved the day, what you noticed was something I thought was meant to be there. I have circled them in a fetching shade of red, these are a sort of homemade helicoil that were screwed in just a bit too far. So thanks everyone engine now turns nicely but I will have to find a new way of locating the starter or just grind some off the "homemadecoils"and replace them.

Cheers, Mark

Location: Rokeby, Victoria, Australia

Mark,

They look like a hex head so unscrew and fit proper helicoils - with suitable short bolts for the starter !

Cheers, Tony.

Location: Melbourne. Victoria, Australia.

Or if the starter fits well onto these - maybe the holes in the starter housing have been opened out to suit - just take the 'Helibolts' out and file the bottom at the angle of the bellhousing to give a clearance - and reuse them? I suspect the threaded holes in the crankcase will be too big to get the right size proper Helicoil in?

Dave

You were right Dave, I measured up on a spare engine and cut the "Helibolt" down by 3mm and used a strong loctite and it seems good.

Cheers, Mark

Location: Rokeby, Victoria, Australia

I'm glad you were able to work it out Mark - I had a feeling it was something in that area causing the jam