M20G gear horn location

[Ed Loggins]

I have a 1969 M20G that the gear horn has died on.  I can’t locate it and the maintenance manual is zero help… Thanks in advance.

[ShuRugal]

My equipment list says 

Mallory	SC628P
Safe Flight	164R

For gear alarm and stall horn respectively.

Had to replace my gear alarm a while back.  The current version of that part number is smaller and has a plastic housing compared to the original, but it's still in production.

 

 

 

 

 

[Hank]

In my 1970 C, the gear horn and stall horn are both in the overhead, to either side of the speaker that I have never used.

[Ed Loggins]

2 hours ago, ShuRugal said:

My equipment list says 

Mallory	SC628P
Safe Flight	164R

For gear alarm and stall horn respectively.

Had to replace my gear alarm a while back.  The current version of that part number is smaller and has a plastic housing compared to the original, but it's still in production.

 

 

 

 

 

Do you by chance have the number?

[Ed Loggins]

1 hour ago, Hank said:

In my 1970 C, the gear horn and stall horn are both in the overhead, to either side of the speaker that I have never used.

I have 2 sono alerts overhead , but it always sounded like it was coming from under the instrument panel.

[Hank]

25 minutes ago, Ed Loggins said:

I have 2 sono alerts overhead , but it always sounded like it was coming from under the instrument panel.

Yep. One for the stall horn, one for the gear warning.

[Ed Loggins]

21 hours ago, Hank said:

In my 1970 C, the gear horn and stall horn are both in the overhead, to either side of the speaker that I have never used.

Hank you where on the money.  It was in the overhead.  Thanks for the info. 

[Yetti]

They are Mallory Sonalerts.   There are different beeps and buzzes.     I think stall is steady beeeeeep.   And gear is beeep beeep. I think there are about 10 differnt sounds.   About $12 from various sources.   https://www.digikey.com/en/products/detail/mallory-sonalert-products-inc/SC628/528117?utm_adgroup=xGeneral&utm_source=google&utm_medium=cpc&utm_campaign=Dynamic Search_EN_Product&utm_term=&utm_content=xGeneral&gclid=Cj0KCQjw9O6HBhCrARIsADx5qCRJPrZW8rgVihCrdca_XwzbNjjEXeMdnDtVxYbY3-0cAY6D8aCMs8waArilEALw_wcB

[carusoam]

7 hours ago, Ed Loggins said:

Hank you where on the money.  It was in the overhead.  Thanks for the info. 

Hank is one of those on the money engineers…. With M20C experience! 

Things to check when able…

1) Throttle switch…

2) Gear switch…

Both are required to have the buzzer sound…

3) Stall switch…

With power on, should sound the buzzer…

4) Skill with a voltage meter helps…

5) getting access above the ceiling is usually the pain… that keeps things not getting improved.

6) If going behind the ceiling panel… get ready to do some maintenance…  wires, tubes, cable, speaker, and lights….

PP thoughts only, not a mechanic…

Best regards,

-a-