551 diodes'

[sqrlgtr 2,182]

When installing didoes back in a 551 I assume i need them oriented were the juice flow toward battery correct. I smoked one or both this morning but I may have them installed wrong. Also had juice when unhooking Pos battery cable with key off or on. @squonk @Achto @WHX?? @953 nut Posted this in resto forum also but thought may get more attention here.

 

[Achto 31,034]

1 hour ago, sqrlgtr said:

When installing didoes back in a 551 I assume i need them oriented were the juice flow toward battery correct.

 

Remove the diodes, hook your battery up. Use a multi meter to determine which terminals are hot or which ones have continuity to the positive battery terminal. The stripe on the diode should be towards the positive terminal on the battery. This allows the positive AC wave go to the battery but prevents the negative AC wave from going to the battery. Simple rectifier. Changing AC voltage to DC voltage.

[sqrlgtr 2,182]

5 minutes ago, Achto said:

The stripe on the diode should be towards the positive terminal on the battery.

Thx that was what I was looking for I know I had seen this in Tecky manual before but could not find it anywhere for some reason. In my on defense I had a tooth pulled Friday and hadn't been myself for a day or two 

[Achto 31,034]

8 minutes ago, sqrlgtr said:

In my on defense I had a tooth pulled Friday and hadn't been myself for a day or two

 

Getting 'em pulled hurts enough. Getting screws put in your jaw for implants to put them back in is not much better, but totally worth it. 

Edited 12 hours ago by Achto

[sqrlgtr 2,182]

ya I got several I'm going to have to do sumin too just been putting it off long as I could, way too long actually.

[WHX?? 55,086]

3 hours ago, sqrlgtr said:

I smoked one

Smokem if ya got em ... 

Read trough them with a multi meter. Usually they go in only one way because of the notch. 

Notch end or cathode up feeding the fuse and the battery. 

[Handy Don 15,956]

Answered this in your other thread. The hazard of putting the same post in two places.

 

 

[Lane Ranger 11,808]

 

^{The  posting Bill Allert made  is the avenue I took with my Lawn Ranger Tecumseh motors.   I rebuilt three rectifier boards with the 3 amp diodes from Radio Shack and the other parts that Ed Stoller mentioned.   They work and do the same thing the original diodes did and they will produce the same electrical output!}

 

^{Ed Stoller did three articles in the Lawn and Garden Tractor Magazine a couple years ago that highlighted this issue.   The bigger HH 100 Tecumseh 10 HP electronic coils are also an issue that many Tecumseh motor owners have dealt with.  Ed Stoller came up with a solution for that one too!}