I'm admittedly too wordy. Although I would greatly appreciate your shared knowledge, if verbosity is bothersome to you, suggest you click out now. It's a character flaw of mine partially due to being able to type really fast.
Hi, Sears guys. I'm new here and have been finding a LOT of excellent info without asking possibly stupid questions. This one, however, I've used the search tool, Google and plain old browsing but I'm not finding it.
If I've missed already relevant info, a link would be appreciated.
Problem statement: A truly great gift tractor from my Dad; 1970 (I think..?) Sears Super HydroTrac 12 that I'm tinkering with to get it going after 11 years storage outside under a tarp.
11 years ago, decent batteries were still the norm instead of the exception. However, back then, about the only real defect my Dad found with this tractor was: A battery would survive for MAYBE a year; sometimes less. Dad has used float chargers since they became available, so the batteries were well maintained ~ including electrolyte top ups.
I looked and found that the tractor has the old style NOT electronic voltage regulator. That is, large bulbous sheet metal cover, relays inside, this type very often a problem in my experience with cars. I'm an antique, so I've seen various old cars with non-electronic regulators overcharge batteries because of the old type of voltage regulator. That grossly shortens battery life, so that is immediately my suspicion.
My questions (at long last) are as follows:
1.) Is the electronic voltage regulator for these 917 chassis Sears tractors actually well done and worth adapting into the tractor? Or are they troublesome - and maybe a swap is not worthwhile?
If not worth swapping, discontinue. If the swap is worthwhile, added questions, please:
2.) What mods if any are required to install an electronic voltage regulator in a "Sears 917" ;-) that was originally NOT electronic voltage reg?
3.) Are used regs worth pursuing or are they often fried? Anyone know of an NOS or rebuilt/refurbished source?
Thank you for taking the time to read this and for all the excellent info you all have shared in this website. I've easily found most everything needed so far - except the above.
Edited by MountainMichael, August 30, 2014 - 06:23 PM.