What does "PHHHH" Mean in Tractor Talk?
In working on a separate issue regarding my 1972 Allis-Chalmers 410S, I now have a new problem.
I was driving her around today, when she ran out of gas. So, I trudge back to the gas can, come back and put some in. She starts up without incident. I drive maybe 75 yards, shut her down, and get back to the prior issue. After a few minutes I go to start her up and I hear a somewhat-muffled "Phhffffffff." This was immediately followed by SILENCE. As in, she doesn't make a sound now when trying to start her. No CLICK...CLICK, when the battery is dead, and nothing else.
The sound emanated from the left side of the engine compartment (my left, from sitting in the tractor). I figure coil or spark plug. As it happens, I have a spare 416S that I've been using for parts (see other thread for most-recent example...lol), so I could lift either of those items from that and, presuming they are appropriate for using in this other engine, give things a whirl.
However, I'd really like some input from others who know way more than I do.
So, what do you think? Coil (or whatever that thingamajob is called which connects to the spark plug), spark plug...something else?