Friday, 15 March 2019

Wednesday - Aligning your balls

In any restoration there is always some point that causes problems. Aligning the balls is one of the ultimate challenges in any carriage restoration. I first encountered it when restoring my 1936 MG SA. It just so happens that the door hinge arrangement is almost identical to the hinge arrangement on Mk1 doors built some 15 to 25 years later. On a Mk1 it is compounded by the fact that there are 3 hinges each with a ball to align rather than the 2 on the car.

The first job in rehanging a door is to thoroughly clean the hinge halves. The ones on the carriage almost inevitably get covered in paint if any work is done while the door is off. So, like always!



With the hinge cups cleaned and greased you put the ball in position before lowering the door into place.
The problem comes in keeping the hole through the ball aligned with the hinge holes for the pin to be put through. Dropping the door into position has a tendency to move the balls and leave them misaligned preventing the insertion of the hinge pin. 

Here is Craig's cunning solution. a split pin with the legs slightly splayed inserted from below holds the ball in place.


When the door is lowered the balls remain in position and the split pin is pulled out and the hinge pin drops easily into place.

Door 1 neatly in place.


and later in the day the process was repeated for door 2.



Trevor was working the draught strip rubbers on the other side of the carriage. The rebate was rather shallow so some trimming was required for the door to still shut correctly.



When we arrived the paint tables were surprisingly bare. Not for long as Derek soon took advantage of the space to prime the sections for the latest platform trolley.

 
 
and Tony did like wise for the battery boxes made by Dave Ward.



Slightly in the dark Craig was fitting new door restraining straps to the centre doors of 21092.



as Phil fitted the securing bracket for the 'Not to be moved' board.



In the barn Bryan was preparing more of the floor support bars for repairs to tack place.



and Rex was cleaning up the battery box frames



and painted them with red-oxide.

 
 
Ken was still working his way round the studs and bolt for the second gangway connection.
 


The 'seat wall' was up again in the upholstery shop John on this side with David on the other. The were passing the big long needle back and forth as the seat cover was secure in position.



I can see the Cheltenham races will have to be retimed. Like Dave yesterday I found both race trains with passengers aboard passed while we were having tea. Its just not on and there is no way we can reschedule the tea break after all.

So this was the return trip heading toward the race course to collect them.

 
 

No comments: