Rob R. wrote:It has an interesting cold start system. Two Autolite glow plugs in the intake manifold preheat the air to aid combustion.
Very nice machine. I also just bought an old tractor, my first ever farm type tractor. I posted about it here and some of the guys have been very helpful.
Anyway, about those glow plugs, do I understand that they are designed to heat the incoming combustion air directly?
The reason I ask is way back in the day I had semi trucks with 220 & 250 naturally aspirated Cummins. Some of them had glow plugs in the intake for a cold start aid. It worked by activating the glow plugs, wait for them to warm up, then use a hand operated priming pump mounted inside the cab to spray fuel on them. The hot glow plugs would ignite the fuel, the burning fuel did the actual heating. If you did not let the glow plugs get hot enough, the fuel would not ignite and the wet glow plugs would not work until they dried out.
On ether, I know many people hate it. I have used it for 50 years and never damaged an engine. Some of my trucks had a built in ether bomb mounted right on the engine. It automatically dispensed a shot when you pressed the start button if the engine was cold enough. The important thing is how much ether you use. Too much causes major problems, the right amount saves many problems and your starter, alternator and batteries will thank you. Just my opinion of course, not trying to change anyone's mind. I feel everyone should do what works for them.