SLT 1554 - park brake doesn't lock

[GeriatricGinger]

This is gonna be kinda hard to explain, but here goes..
SLT 1554, the OG engine decided to split the case about 55 hrs in, so I motor-swapped it with a 27HP B&S twin and it's been fine ever since (currently at around 220hrs)..
However, about 2-3 seasons ago, the park brake lever decided to not break, but not hold the brake pedal in place, either. I have had the body off of it a couple times, but still no joy in fixing it.
I have a service manual but only thing I find on parking brake is how to adjust the actual brake, not the latching lever, itself.
Any thoughts or words of wisdom?

Thanks!
/GG

 

[Richard001]

Some photos of the problem may help us help you.

 

[GeriatricGinger]

I'll try to get some photos, but essentially, you depress the brake pedal, push the park brake handle on the dash down, then release the pedal and handle. the dash handle used to hold the brake pedal in place, but that is no longer the case; it just pops the pedal free as soon as you let go of the handle.