08-14-2015, 11:29 PM
Yes the model uses the same construction as the larger engines, but that is a concern, because the frame is much thinner.
We're talking 40+? year old Zamak, which is tougher than most white metals but has had time to crystallize, so I would urge caution with any applied force.
If pressing in shim-stock, I'd cut a notch in some scrap wood to hold the journals while pushing on them rather than risking the frame.
You could easily sweat them with solder in a wood fixture and forget extra tabs.
Dan M.
We're talking 40+? year old Zamak, which is tougher than most white metals but has had time to crystallize, so I would urge caution with any applied force.
If pressing in shim-stock, I'd cut a notch in some scrap wood to hold the journals while pushing on them rather than risking the frame.
You could easily sweat them with solder in a wood fixture and forget extra tabs.
Dan M.