I have a 1978 Model 924032 that I bought used many years ago. I put on a new Tecumseh engine a few years ago that I picked up on ebay. Works great! It has saved my a** this year here in eastern MA. Started having intermittent trouble with the interlock switch or wiring - haven't figured out what yet so I just bypassed it for now because it won't stop snowing here. While looking at the interlock switch I spotted a module nearby and the parts list refers to it as Module T. I see it for sale here and there when I googled it but can't find out what it's there for. Can anyone explain it's purpose/function? Thanks, I just joined the forum and hope someone can enlighten me.