overvolts on G model

[edasmus]

1973 337G…. Has had 3 separate over voltage issues.

See my detailed post on circuit breaker panel.

The second was a landing gear related.

The third was replacing these 2 diodes on front firewall. One had a physical break on the post. Once this was fixed…, I’m 99.9% over-voltage free.

I had the same symptoms as you. No problem running only on rear. Running on just front or both alternators, problem present.

The diode for the front had the broken post.

Hopefully the photo attaches to this post.

[sunnysky]

thank you MSHAC and Edasmus.
The voltage regulators in my aircraft are the solid state type and I thought they were not adjustable. how do i set the voltage that triggers the overvolt shutdown please.
i will inspect the diodes as soon as.

[mshac]

I've attached all the pertinent shop manual pages for your perusal.

[mshac]

Since we're limited to 5 attachments per post, this is the 6th and final attachment from the previous post.