Wow I did it again I have spent the whole day polishing the second twin engine.
As I may not have mentioned before I do believe there were two different models of the 500 Twin and I'm restoring both at the same time.
Here's some pictures of the second engine.
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2015/04/full-5048-21124-102_0602.jpg)
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2015/04/full-5048-21125-102_0603.jpg)
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2015/04/full-5048-21126-102_0606.jpg)
This time I kept an eye on the time.It took me almost 12 hours to just polish this engine.
It would have been very close to the same amount of time for the first one.
So I guess there is almost 24 hours spent just polishing the two twin engines.
The hardest part to polish is the heads.Just very fiddly and hard part to polish,but it's done now.Until I decide to do the green supreme and the gold twin.Thankfully I have a few ahead of those two first.I just don't think I could do that again right now.
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2015/04/full-5048-21127-102_0607.jpg)
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2015/04/full-5048-21128-102_0609.jpg)
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2015/04/full-5048-21129-102_0610.jpg)
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2015/04/full-5048-21130-102_0611.jpg)
Here's some pictures of one of the rear flaps after the electrolysis and before spraying some primer over it.
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2015/04/full-5048-21131-102_0545.jpg)
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2015/04/full-5048-21132-102_0552.jpg)
Very nice clean and rust free.After those pictures were taken I ran a wire wheel over it and then hit it with the primer.
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2015/04/full-5048-21133-102_0546.jpg)
Of which it then looked like this.Then the primer.
And here the old meets the new.
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2015/04/full-5048-21134-102_0402.jpg)
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2015/04/full-5048-21135-102_0403.jpg)
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2015/04/full-5048-21136-102_0404.jpg)
![[Linked Image]](https://www.outdoorking-forum.com.au/forum/uploads/usergals/2015/04/full-5048-21137-102_0405.jpg)
The old doesn't look very happy at all.