Changing and flushing the coolant on the 1985 ford 1910 diesel tractor. As far as I know lots other 1000 series ford tractors will be a similar procedure to this. Ones off the top of my head are the 1210 and 1710 if memory serves me right. I used peak brand fleet charge sca precharged coolant to protect this tractor from future issues with cavitation.
Parts used to repair block drain:
Cap-3/8-in dia Galvanized Cap Fittings https://www.lowes.com/pd/Mueller-Proline-3-8-in-dia-Galvanized-Cap-Fittings/4330256
Pipe-3/8-in dia Galvanized Nipple Fittings https://www.lowes.com/pd/Mueller-Proline-3-8-in-dia-Galvanized-Nipple-Fittings/4330304
Tap was 5/8” size 18 “fine” threads
Link to tap- https://www.tractorsupply.com/tsc/product/mibro-5-8-in-nf-plug-tap?cm_vc=-10005