The green ones are the Lightweights and the orange ones are the Compacts.
There's not much difference between the engines just a lot have the date of manufacture in the number.I guess I'm lucky that this engine I'm using seems to have a different engine number set up that doesn't have a date on it.
Not sure why but it works in my favor.
Thanks Gizmo it is a lot of work but it pays off when your at the end of the job and look back at how it started.
