Re: The Duchess Project: 1940 Super 8 Convertible Sedan

Posted by Joe Santana On 2022/4/25 8:21:15

Thanks for the help, Dave.

Just so I understand. The brass fitting is pressed into the end of the master cylinder? And the stoplight switch is steel?

So I would remove the old switch and drain out the DOT 4 brake fluid.

Should I attempt to clean the master cylinder threads by gently retapping them?

Then spray it clean from the inside of the master cylinder with brake cleaner. Then install the new switch without thread lock. Right?

Here is a link to a video of what was happening before I took it to the Oregon muscle car shop.http://www.mktx.com/packard/MasterBrakeSwitchLeak.mp4