Fuddy1952
Elite Member
- Joined
- Apr 17, 2018
- Messages
- 4,297
- Location
- South Central Virginia
- Tractor
- 1973 Economy and 2018 John Deere 3038E
This makes no sense to me:
I have my Grandfather's Economy Power King he bought new, mid 1970s. It was hard to start (slow crank speed) so I replaced battery with a 650 CCA one. Kohler 321 one cylinder, 14hp. Throttle wide open, battery measures 12.5v. I take battery back, they load test, etc, checks perfect. I have a late model Hyundai Accent, swap batteries, same thing. Stator checks ok, 22.6vac at idle, goes up 26vac higher rpm. Today I replaced diode/regulator module. Same results!!! 12.56vdc max! Cleaned all terminals and connections, same thing. I even ran clip lead battery--neg to module case (ground) then battery +pos to yellow output to ign switch...same thing.
I have a late 70s Cub Cadet, same motor. It has a small lawn mower battery, 12.7v...then motor at idle 13.5 up to 14.2v w.o.t.
Once running, it has plenty of power, doesn't smoke, pulls hills high gear. I thought I'd check compression...25 p.s.i. Thinking I had defective gauge I used another...25 p.s.i.
I checked other motor and 110 p.s.i. both gauges.
1) what the heck is going on with charging system?!
2) how can it run with 25 psi compression?!
I have a leak-down tester I'll try tomorrow, seeing why compression is low.
Any ideas...thanks!
I have my Grandfather's Economy Power King he bought new, mid 1970s. It was hard to start (slow crank speed) so I replaced battery with a 650 CCA one. Kohler 321 one cylinder, 14hp. Throttle wide open, battery measures 12.5v. I take battery back, they load test, etc, checks perfect. I have a late model Hyundai Accent, swap batteries, same thing. Stator checks ok, 22.6vac at idle, goes up 26vac higher rpm. Today I replaced diode/regulator module. Same results!!! 12.56vdc max! Cleaned all terminals and connections, same thing. I even ran clip lead battery--neg to module case (ground) then battery +pos to yellow output to ign switch...same thing.
I have a late 70s Cub Cadet, same motor. It has a small lawn mower battery, 12.7v...then motor at idle 13.5 up to 14.2v w.o.t.
Once running, it has plenty of power, doesn't smoke, pulls hills high gear. I thought I'd check compression...25 p.s.i. Thinking I had defective gauge I used another...25 p.s.i.
I checked other motor and 110 p.s.i. both gauges.
1) what the heck is going on with charging system?!
2) how can it run with 25 psi compression?!
I have a leak-down tester I'll try tomorrow, seeing why compression is low.
Any ideas...thanks!