The Roof:
Having now removed the Britax sunroof, the extent of the repairs required can be seem.
On the plus side the roof is in good condition, but sadly the sunroof is not. The lining is worn out and ripped and the metal supports inside the roof are very rusty, I will try to dismantle it to decide which route to take.

 

The sunroof metal end panels were found to be really rusty both the inner lining and outer cover would need replacing. So I have made the decision to do away with the sunroof and fit a new complete roof panel. 

Here goes !    I have started to cut away the old roof panel, I will run a thin cutting blade down the gutters to release the sides and drill out the front and rear spot welds.

The remains of the roof were removed from the gutter rails with a grinder.

 I treated the rust with Jenolite and then Bonda Zinc Primer.

This was the first of several test fits, naturally even though the roof panel was a new Heritage part, it still had to be fettled to get it to fit. I placed Cleco fixings along the front and rear edges where the plug welds will be, the drip rails will be bonded. 

 Paint was applied to the roof rails and underside of the roof panel, and the edges treated with weld through primer.

The new MGB  roof is now in place, I used Bondtech 60 on the drip rails and plug welded the front and rear edges. I clamped it overnight until the bonding was fully cured.

 I then set about filling the pillar seams, which I had already tack welded. I decided not to used lead loading as the heat generated might damage the bonding on the drip rails, so I used Belzona metal compound, I will skim over the joins with filler later on to make an invisible join.