Kagama Leaking shock

[Trucking in space]

Okay, I'm unfamiliar with shocks in general and unfamiliar with TC shocks specifically.
A couple days ago I adjusted the shock collars (I think that's what you call the red bits that rotate around the shock body?) and it appeared that I had actually loosened the left front shocks cap without being aware until after a run.
Without thinking about air having entered the shock body, I tightened the shock and drove the next day.
Tonight I see tons of liquid had leaked out and it appears that these shocks have a bleeder area (see photo, I'm pointing with a hex key at the area where I see fluid leak from when I compress the shock rod end) ?
Is there a grub screw that goes in there? I thought that was only for emulsion style shocks. Mine are stock shocks.
Is that area leaking because I got air in my shock when the cap was loose, and I didn't bleed the air properly by opening the shock cap, compressing the piston, and then putting the cap back on ?
Or is that area damaged, and should not be able to leak oil ?
I know the image is bad lighting wise, and if necessary I can post a magnified view of the area tomorrow when I feel like getting shock oil on my hands again .
I've never worked with shocks before and I can't find many "wrenching" videos of Corally shock disassembly online. Most videos show people installing the M2C shock cap conversion kit.

I don't have shock pliers so I guess I need to get a pair.

Thanks for any input.

 

[Sandracer_NL]

That’s normal once ‘air’ gets in the shocks. You probably may need to add a bit of shock oil to that shock as it may have excess air now:

 

[Trucking in space]

Thank you. I'm ordering a shock pliers and some 90wt (1130cst) oil. Upon opening the shock, the fluid is definitely about 1/2 inch below where it should be after compressing the pinion.
It also looks like the little rubber bladder is deformed. Maybe a factory defect, or the air and uneven pressure mashed it around a bit ?
I may try using a heat gun to see if I can get the proper dome shape back. For now I put it back into the shock until my oil arrives.

 

[Wheels007]

I had the same issue with my Sketer out of the box. I checked the shock seals rips and the top of the shock cylinder for any rough edges that oil would fit through. After a month of trying to fix it I gave up. I bought a new set cheap from JennyRC and have been fine since.

 

[Manolis]

Same here in my Sketer too!
Of course, I had put the car on its side, not normally with all four wheels on the ground, because it doesn't fit in my 1/1!